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1. An anatomical and ultrastructural study of the eye of the luminescent millipede Paraspirobolus lucifugus (Gervais 1836) (Diplopoda, Spirobolida, Spiroboleliidae)

Author:
Victor Benno Meyer-Rochow; Yumi Yamahama
Source:
Arthropod structure & development 2022 v.69 pp. 101171
ISSN:
1467-8039
Subject:
Spirobolida; adults; arthropods; bioluminescence; calcium; circadian clocks; cornea; energy-dispersive X-ray analysis; females; ommatidia; phototaxis; silicon; transmission electron microscopy
Abstract:
... The two forward-looking eyes and their ultrastructural organization of an 18 mm long adult bioluminescent female millipede (Paraspirobolus lucifugus) were investigated by transmission electron microscopy and energy-dispersive X-ray spectroscopy. Each eye contained approximately 23 ommatidia with 50–60 μm wide and 80 um thick corneal lenses that contained calcium and silicon and proximally ended in ...
DOI:
10.1016/j.asd.2022.101171

2. Biotremology: Vibrational communication of Psylloidea

Author:
Yi-Chang Liao; Diana M. Percy; Man-Miao Yang
Source:
Arthropod structure & development 2022 v.66 pp. 101138
ISSN:
1467-8039
Subject:
Psyllidae; arthropods; males; phylogeny; stridulation; thorax; wings
Abstract:
... Psyllids perform duetting via vibrational signals between genders that are important in pre-copulation species specific recognition. To date, vibrational behavior has been recorded in more than 100 species of psyllid, which is still only a small fraction of the ∼4000 described species. In this overview, we categorize the duet behavior into (1) reciprocal duets, (2) engaged duets, (3) three-way due ...
DOI:
10.1016/j.asd.2021.101138

3. Characterization of preimaginal developmental stages of two cryptic South African species of the Merodon planifacies complex (Diptera: Syrphidae: Eristalinae: Merodontini), with differentiation through morphometry analysis

Author:
Andrea Aracil; Jelena Ačanski; Celeste Pérez-Bañón; Branko Šikoparija; Marija Miličić; Andrés Campoy; Snezana Radenković; Ante Vujić; Predrag Radišić; Santos Rojo
Source:
Arthropod structure & development 2022 v.70 pp. 101187
ISSN:
1467-8039
Subject:
Merodon; Merwilla plumbea; adults; arthropods; cryptic species; digestive system; host plants; integument; larvae; morphometry; pollen; South Africa
Abstract:
... Merodon capi Vujić et Radenković, 2020 and Merodon roni Radenković et Vujić, 2020 are two cryptic species belonging to the Merodon planifacies Bezzi, 1915 species complex that have recently been described, with the differences between them being revealed by molecular and geometric morphometry studies of adult specimens. In the present study, the preimaginal morphology of both species is described ...
DOI:
10.1016/j.asd.2022.101187

4. Distal leg structures of Zoraptera – did the loss of adhesive devices curb the chance of diversification?

Author:
Yoko Matsumura; Sheila P. Lima; José A. Rafael; Josenir T. Câmara; Rolf G. Beutel; Stanislav N. Gorb
Source:
Arthropod structure & development 2022 v.68 pp. 101164
ISSN:
1467-8039
Subject:
Zoraptera; arthropods; bark; microhabitats
Abstract:
... The distal leg structures of Zoraptera are documented and discussed with respect to their functional morphology and evolutionary aspects. We investigated eight species using scanning electron microscopy. We analyzed material compositions of the tarsus in three representative species using confocal laser scanning microscopy. When possible, we included both sexes, wing morphs, and nymphs and compare ...
DOI:
10.1016/j.asd.2022.101164

5. Do the different life history strategies of ants and honeybees determine fat body morphology?

Author:
Łukasz Wójcik; Magdalena Chęć; Patrycja Skowronek; Marcin Grabowski; Kamil Persona; Aneta Strachecka
Source:
Arthropod structure & development 2022 v.69 pp. 101186
ISSN:
1467-8039
Subject:
Apis mellifera mellifera; Cretaceous period; Formica; arthropods; fat body; heart; life history; physiology
Abstract:
... The separation of two sister groups such as ants and bees in the Cretaceous involved the development of distinctive characteristics to occupy separate ecological niches. From the point of view of biology and ecology, it is important to see how different life history strategies affect the physiology of these insects. The fat body is the most metabolically important tissue in the organism of each in ...
DOI:
10.1016/j.asd.2022.101186

6. Effect of vibrational mating disruption on flight activity and oviposition to control the grapevine pest, Scaphoideustitanus

Author:
Valentina Zaffaroni-Caorsi; Rachele Nieri; Nicola M. Pugno; Valerio Mazzoni
Source:
Arthropod structure & development 2022 v.69 pp. 101173
ISSN:
1467-8039
Subject:
Scaphoideus titanus; Vitis; arthropods; females; greenhouses; insect communication; oviposition; pests; phytoplasmal diseases
Abstract:
... The increasing demand for safe and sustainably produced food is leading to the development of strategies of pest control alternative to chemicals. One innovative method is Vibrational Mating Disruption (VMD) to disrupt insect communication in plants. VMD was proven effective in preventing mating of the grapevine pest Scaphoideus titanus, vector of flavescence dorée. However, the stress induced by ...
DOI:
10.1016/j.asd.2022.101173

7. Evolutionary morphology of coxal musculature in Pseudoscorpiones (Arachnida)

Author:
Hanna Michalski; Danilo Harms; Jens Runge; Christian S. Wirkner
Source:
Arthropod structure & development 2022 pp. 101165
ISSN:
1467-8039
Subject:
Pseudoscorpiones; Scorpiones; Solifugae; arthropods; evolution; micro-computed tomography
Abstract:
... Pseudoscorpions are an ancient and globally distributed lineage of arachnids with nearly 3,700 species described. Despite being present in virtually all terrestrial habitats, their morphology and anatomy has rarely been studied to date, which hampers homology statements both within and between other arachnid orders. All pseudoscorpions share a morphological peculiarity, the fixation of the coxae o ...
DOI:
10.1016/j.asd.2022.101165

8. Exploration of the homology among the muscles associated with the female genitalia of the three suborders of Psocodea (Insecta)

Author:
Zixin Cheng; Kazunori Yoshizawa
Source:
Arthropod structure & development 2022 v.66 pp. 101141
ISSN:
1467-8039
Subject:
Psocodea; arthropods; female genitalia; insects; monophyly; muscles; ovipositor
Abstract:
... By using μCT technology, we reconstructed 3D models of the female genital structures and associated muscles of seven species from three suborders of Psocodea (free-living species only, formerly known as independent insect order “Psocoptera”). The homology of the female genital structures and associated muscles of different species is discussed. A total of 21 muscle groups were observed, and except ...
DOI:
10.1016/j.asd.2022.101141

9. Histology and ultrastructure of glands associated with the sting apparatus of the swarm-founding wasp Protopolybia exigua (Hymenoptera: Vespidae: Polistinae)

Author:
Marjorie da Silva; Fernando Barbosa Noll; Johan Billen
Source:
Arthropod structure & development 2022 v.68 pp. 101166
ISSN:
1467-8039
Subject:
Vespidae; arthropods; epithelium; histology; light microscopy; lubrication; reproduction; sting apparatus; ultrastructure; venoms; wasps
Abstract:
... Social insects present a great diversity of exocrine glands, which are linked to fundamental roles of social life, and their morphological characterization represents the first step toward the knowledge of their function. We here describe the exocrine glands present in the sting apparatus of queens and workers of the wasp Protopolybia exigua. Histological analysis of serial sections under light mi ...
DOI:
10.1016/j.asd.2022.101166

10. Impacts of development and adult sex on brain cell numbers in the Black Soldier Fly, Hermetia illucens L. (Diptera: Stratiomyidae)

Author:
Meghan Barrett; R. Keating Godfrey; Emily J. Sterner; Edward A. Waddell
Source:
Arthropod structure & development 2022 pp. 101174
ISSN:
1467-8039
Subject:
Hermetia illucens; Hymenoptera; adults; arthropods; body size; brain; females; fractionation; immunohistochemistry; insects; isotropy; larvae; males; sexual dimorphism; ventral nerve cord
Abstract:
... The Black Soldier Fly (Hermetia illucens, Diptera: Stratiomyidae) has been introduced across the globe, with numerous industry applications predicated on its tremendous growth during the larval stage. However, basic research on H. illucens biology (for example, studies of their central nervous system) are lacking. Despite their small brain volumes, insects are capable of complex behaviors; underst ...
DOI:
10.1016/j.asd.2022.101174

11. Like parent, like child – Ontogenetic development of claws of intertidal arthropods (Acari, Oribatida) from different ecological niches

Author:
Tobias Pfingstl; Michaela Kerschbaumer
Source:
Arthropod structure & development 2022 v.67 pp. 101143
ISSN:
1467-8039
Subject:
Sarcoptiformes; adults; arthropods; body size; children; claws; geometry; immatures; instars; juveniles; littoral zone; morphometry; ontogeny
Abstract:
... The shape of claws of adult air-breathing intertidal oribatid mites shows a strong correlation with ecology. As nothing is known about juvenile characteristics of this trait, the ontogenetic development of these attachment devices was studied for the first time with comprehensive geometric morphometric methods. In nine investigated species, claws of immature stages can be classified into the same ...
DOI:
10.1016/j.asd.2022.101143

12. Low radiodensity μCT scans to reveal detailed morphology of the termite leg and its subgenual organ

Author:
Travers M. Sansom; Sebastian Oberst; Adrian Richter; Joseph C.S. Lai; Mohammad Saadatfar; Manuela Nowotny; Theodore A. Evans
Source:
Arthropod structure & development 2022 pp. 101191
ISSN:
1467-8039
Subject:
Coptotermes; Nasutitermes exitiosus; arthropods; geometry; hemolymph; micro-computed tomography; phosphotungstic acid
Abstract:
... Termites sense tiny substrate-borne vibrations through subgenual organs (SGOs) located within their legs’ tibiae. Little is known about the SGOs’ structure and physical properties. We applied high-resolution (voxel size 0.45 μm) micro-computed tomography (μCT) to Australian termites, Coptotermes lacteus and Nasutitermes exitiosus (Hill) to test two staining techniques. We compared the effectivenes ...
DOI:
10.1016/j.asd.2022.101191

13. Minute workers and large soldiers in the subterranean ant Carebara perpusilla: Musculoskeletal consequences of Haller's rule in the thorax

Author:
Adam Khalife; Christian Peeters; Evan P. Economo
Source:
Arthropod structure & development 2022 v.69 pp. 101188
ISSN:
1467-8039
Subject:
X-radiation; allometry; arthropods; body size; brain; head; labor; locomotion; micro-computed tomography; petioles; thorax
Abstract:
... Many organismal traits vary with body size, often reflecting trade-offs in the face of size-dependent constraints. For example, Haller's rule, the allometric pattern whereby smaller organisms have proportionally larger brains, can have carry-on effects on head design as the brain competes for space with other structures. Ant species with polymorphic worker castes are interesting cases for helping ...
DOI:
10.1016/j.asd.2022.101188

14. Morphological description of the midgut tract and midgut-hindgut junction in the larvae of the spider crab Maja brachydactyla Balss, 1922 (Malacostraca: Decapoda): In memoriam of Mercè Durfort.

Author:
Diego Castejón; Guiomar Rotllant; Enric Ribes; Guillermo Guerao
Source:
Arthropod structure & development 2022 pp. 101168
ISSN:
1467-8039
Subject:
Maja brachydactyla; absorption; adults; arthropods; dissection; electron microscopy; epithelium; food transport; hindgut; larvae; larval development; light microscopy; osmoregulation; peritrophic membrane; stomach; ultrastructure
Abstract:
... The midgut tract of the decapods is a digestive organ involved in the synthesis of peritrophic membrane, food transport, absorption of nutrients, and osmoregulation. The midgut tract has been described in detail in adult decapods, but little information is available regarding the morphology and ultrastructure of the midgut tract in larval stages. The present study describes the midgut tract and th ...
DOI:
10.1016/j.asd.2022.101168

15. Morphology and ultrastructure of the infrabuccal pocket in Strumigenys ants

Author:
Chu Wang; Alessio Cocco; Chung-Chi Lin; Johan Billen
Source:
Arthropod structure & development 2022 v.68 pp. 101154
ISSN:
1467-8039
Subject:
arthropods; digestive tract; epithelium; filtration; pharynx; secretion; ultrastructure
Abstract:
... The morphology of the infrabuccal pocket has been studied with light and electron microscopy (SEM, TEM) in 19 species of Strumigenys ants. The structural organization is similar in workers, queens and males, and supports the involvement of the pocket in the filtration of food particles before they can enter the digestive tract. A carpet of posteriorly oriented bristle hairs on the hypopharynx firs ...
DOI:
10.1016/j.asd.2022.101154

16. Mouthpart structure of the adult Bicaubittacus appendiculatus () (Mecoptera: Bittacidae)

Author:
Xiao-Yan Wang; Na Ma; Bao-Zhen Hua
Source:
Arthropod structure & development 2022 pp. 101176
ISSN:
1467-8039
Subject:
Bittacidae; adults; arthropods; histology; palps; sclerotization; sensilla
Abstract:
... The structure and functional morphology of the mouthparts were investigated in adult hangingfly Bicaubittacus appendiculatus (Esben-Petersen, 1927) by scanning electron microscopy and histological serial sections. The mandibulate mouthparts consist of a labrum-epipharynx, paired mandibles and maxillae, and unpaired labium and hypopharynx. The labrum is elongated and tapered toward apex. The epipha ...
DOI:
10.1016/j.asd.2022.101176

17. Much more than hooked: Setal adaptations for camouflage in Macrocoeloma trispinosum (Latreille, 1825) (Crustacea: Decapoda: Brachyura)

Author:
Laira Lianos; Michelle Mollemberg; Jessica Colavite; Amanda Lopes e Silva; Fernando José Zara; William Santana
Source:
Arthropod structure & development 2022 v.66 pp. 101132
ISSN:
1467-8039
Subject:
Decapoda; adhesion; arthropods; camouflage; electron microscopy; epithelium; protein secretion
Abstract:
... Several majoid crabs are known to adhere exogenous materials to their bodies, a behaviour called decoration. Until now, the adhesion of exogenous materials to the body is most attributed to the well-known hooked setae. Here, we analysed the carapace of Macrocoeloma trispinosum (Latreille, 1825) under light and electron microscopy to study the different mechanisms allowing majoid crabs to decorate ...
DOI:
10.1016/j.asd.2021.101132

18. Rustling ants: vibrational communication performed by two Camponotus species in Borneo

Author:
Julien L. Bota; Michael G. Schöner; Caroline R. Schöner; Monika J.B. Eberhard
Source:
Arthropod structure & development 2022 pp. 101172
ISSN:
1467-8039
Subject:
Borneo; Calamus; Camponotus; arthropods; host plants; insects; leaves; mimicry (behavior)
Abstract:
... Interactions between ants and plants are classic examples of cooperation between individuals of different species. Usually, plants provide shelter or food for ants and in turn are defended against herbivores by their insect allies. To coordinate attacks, ants use multi-modal alarm signals consisting of vibrational and chemical components. This can also be observed on Borneo, where two Camponotus s ...
DOI:
10.1016/j.asd.2022.101172

19. Semi-automated differentiation of insect exo- and endocuticle in X-ray microtomography

Author:
Karen Stamm; Jan-Henning Dirks
Source:
Arthropod structure & development 2022 v.66 pp. 101139
ISSN:
1467-8039
Subject:
Locusta migratoria; arthropods; biomechanics; exoskeleton; geometry; histology; insects; legs; micro-computed tomography; sclerotization; tibia
Abstract:
... One of the most versatile and complex biological composite materials, the insect exoskeleton shows a huge range in biomechanical properties. The cuticle exoskeleton can be differentiated into two main histologically different layers with distinct properties: the outer, more sclerotized exocuticle and inner, softer endocuticle. For most biomechanical research questions, it is of great importance to ...
DOI:
10.1016/j.asd.2021.101139

20. Seminal fluid and spermatophore production in a western Atlantic invasive swimming crab, Charybdis hellerii, reveals a different pattern to Portunoidea

Author:
Timóteo T. Watanabe; Laura S. López-Greco; Fernando J. Zara
Source:
Arthropod structure & development 2022 v.66 pp. 101137
ISSN:
1467-8039
Subject:
Charybdis hellerii; arthropods; crabs; dehiscence; electron microscopy; females; gonadosomatic index; invasive species; males; seawater; sperm competition; spermatophores; spermatozoa
Abstract:
... The male reproductive system in Portunoidea is voluminous in order to produce the sperm plug, avoiding sperm competition. The portunid crab, Charybdis hellerii, is a successful invasive species, and this study describes the male reproductive system under light and electron microscopy and evaluates the gonadosomatic index and spermatophore dehiscence compared to other species that produce a sperm p ...
DOI:
10.1016/j.asd.2021.101137

21. Slit sense organ distribution on the legs of two species of orb-weaving spider (Araneae: Araneidae)

Author:
Thomas E. Miller; Graham K. Taylor; Beth Mortimer
Source:
Arthropod structure & development 2022 v.67 pp. 101140
ISSN:
1467-8039
Subject:
Araneidae; exoskeleton; hemolymph; muscles; spiders
Abstract:
... Biotic and abiotic mechanical stimuli are ubiquitous in the environment, and are a widely used source of sensory information in arthropods. Spiders sense mechanical stimuli using hundreds of slit sense organs (small isolated slits, large isolated slits, groups of slits and lyriform organs) distributed across their bodies and appendages. These slit sense organs are embedded in the exoskeleton and d ...
DOI:
10.1016/j.asd.2022.101140

22. The evolution of head size hypoallometry: biomechanical implications and brain investment as a possible cause

Author:
Sean O’Donnell; Caroline Gallen
Source:
Arthropod structure & development 2022 pp. 101175
ISSN:
1467-8039
Subject:
Agelaia; Polybia; allometry; arthropods; biomechanics; body size; body weight; brain; data collection
Abstract:
... Species’ mean relative head size decreases with species body size in paper wasps, which may have important implications for biomechanics in these flying animals. Here we quantify the allometric relationship (log/log slope) of head size to body size in paper wasps. We sampled species in two genera (Agelaia and Polybia) to test whether head/body allometry was consistent among genera. Head mass/total ...
DOI:
10.1016/j.asd.2022.101175

23. The interna of the rhizocephalan Peltogaster reticulata: comparative morphology and ultrastructure

Author:
Aleksei A. Miroliubov; Anastasia D. Lianguzova; Stanislav A. Ilyutkin; Natalia A. Arbuzova; Nikita E. Lapshin; Ekaterina P. Laskova
Source:
Arthropod structure & development 2022 pp. 101190
ISSN:
1467-8039
Subject:
arthropods; endoparasites; extracellular matrix; integument; lifestyle; parasitism; ultrastructure
Abstract:
... Specialized morphology of diverse parasitic crustaceans reflects their adaptations to an endoparasitic lifestyle. Rhizocephalan barnacles are one of the most highly modified obligatory parasites of other crustaceans. Comprehension of the functional morphology of rhizocephalans could elucidate the main evolutionary trends not only inside parasitic barnacles, but in parasitism as a whole. Despite th ...
DOI:
10.1016/j.asd.2022.101190

24. The larval scaffold controls fascicle number but is not required for formation of the dorsolongitudinal flight muscles in Manduca sexta

Author:
J. Clark Ludwig; Hitoshi Aonuma; Barry Trimmer
Source:
Arthropod structure & development 2022 v.68 pp. 101170
ISSN:
1467-8039
Subject:
Drosophila melanogaster; Manduca sexta; adults; arthropods; histology; larvae; metamorphosis; micro-computed tomography; moths; muscle development; phalloidine
Abstract:
... During metamorphosis, the dorsolongitudinal flight muscles (DLMs) of both the moth Manduca sexta and the fly Drosophila melanogaster develop from the remnants of larval muscles called larval scaffolds. Although this developmental program has been conserved across highly disparate taxa, the role of the larval scaffold remains unclear. Ablation experiments have demonstrated that the Drosophila DLM d ...
DOI:
10.1016/j.asd.2022.101170

25. The mouthparts and sensilla of the adult tomato leafminer moth, Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae)

Author:
Nesreen M. Abd El-Ghany; Michel J. Faucheux
Source:
Arthropod structure & development 2022 v.67 pp. 101144
ISSN:
1467-8039
Subject:
Tuta absoluta; arthropods; moths; palps; pests; proboscis; sensilla
Abstract:
... In this study, investigation of the morphology and distribution of mouthpart sensilla in the adult tomato leafminer moth, Tuta absoluta Meyrick (Lepidoptera: Gelechiidae), using a scanning electron microscope (SEM) is performed. SEM studies examining the mouthparts of Gelechiidae have been noted to be rare; moreover, there have been few investigations on the sensory structures of adult T. absoluta ...
DOI:
10.1016/j.asd.2022.101144

26. The sperm ultrastructure of members of basal Tenebrionoidea (Coleoptera)

Author:
Glenda Dias; José Lino-Neto; David Mercati; Pietro Paolo Fanciulli; Pietro Lupetti; Romano Dallai
Source:
Arthropod structure & development 2022 v.66 pp. 101129
ISSN:
1467-8039
Subject:
Mordellistena; Mylabris; acrosome; arthropods; flagellum; mitochondria; plasma membrane; ultrastructure
Abstract:
... The sperm ultrastructure of some beetles of Tenebrionoidea was studied with particular attention to those of the Ripiphoridae, Mordellidae, and Meloidae. These three groups are often thought to form a clade, which is the sister group of the remaining Tenebrionoidea. The testes of the two former families have thinner but longer spermatic cysts containing fewer and longer sperm. Within each cyst all ...
DOI:
10.1016/j.asd.2021.101129

27. The ultrastructure of the intramandibular gland in soldiers of the termite Machadotermes rigidus (Blattodea: Termitidae: Apicotermitinae)

Author:
Tereza Beránková; Aleš Buček; Thomas Bourguignon; Johanna Romero Arias; Pierre D. Akama; David Sillam-Dussès; Jan Šobotník
Source:
Arthropod structure & development 2022 v.67 pp. 101136
ISSN:
1467-8039
Subject:
Blattodea; Golgi apparatus; Termitidae; anti-infective agents; arthropods; electron microscopy; micro-computed tomography; rough endoplasmic reticulum; secretion; ultrastructure; Western Africa
Abstract:
... Machadotermes is one of the basal Apicotermitinae genera, living in tropical West Africa. Old observations suggested the presence of a new gland, the intramandibular gland, in Machadotermes soldiers. Here, by combining micro-computed tomography, optical and electron microscopy, we showed that the gland exists in Machadotermes soldiers only as an active exocrine organ, consisting of numerous class ...
DOI:
10.1016/j.asd.2021.101136

28. Their Young Bite Better: On- and Off-host Selection Pressure as Drivers for Evolutionary-Developmental Modification in Rhipicephalus ticks

Author:
Deon K. Bakkes; Dikeledi E. Matloa; Ben J. Mans; Conrad A. Matthee
Source:
Arthropod structure & development 2022 pp. 101189
ISSN:
1467-8039
Subject:
Rhipicephalus; allometry; body size; early development; geometry; morphometry; neoteny; phenotype; phylogeny; risk; selection pressure
Abstract:
... Distinct life stages may experience different selection pressures influencing phenotypic evolution. Morphological evolution is also constrained by early phenotypes, since early development forms the phenotypic basis of later development. This work investigates evolutionary-developmental modification in three life stages and both sexes of 24 Rhipicephalus species using phylogenetic comparative meth ...
DOI:
10.1016/j.asd.2022.101189

29. Thoracic crop formation is spatiotemporally coordinated with flight muscle histolysis during claustral colony foundation in Lasius japonicus queens

Author:
Yuta Kurihara; Kota Ogawa; Yudai Chiba; Yoshinobu Hayashi; Satoshi Miyazaki
Source:
Arthropod structure & development 2022 v.69 pp. 101169
ISSN:
1467-8039
Subject:
Lasius; arthropods; esophagus; flight muscles; larvae; liquids; nests
Abstract:
... In a majority of ants, a newly mated queen independently founds a colony and claustrally raises her first brood without foraging outside the nest. During claustral independent colony foundation (ICF) in several ants, the esophagus of the founding queen expands and develops into a “thoracic crop,” which is then filled with a liquid substrate for larval feeding. It has been suggested that these subs ...
DOI:
10.1016/j.asd.2022.101169

30. Vibration detection in arthropods: Signal transfer, biomechanics and sensory adaptations

Author:
Johannes Strauß; Nataša Stritih-Peljhan
Source:
Arthropod structure & development 2022 v.68 pp. 101167
ISSN:
1467-8039
Subject:
arthropods; biomechanics; evolution; sensilla; vibration
Abstract:
... In arthropods, the detection of vibrational signals and stimuli is essential in several behaviours, including mate recognition and pair formation, prey detection, and predator evasion. These behaviours have been studied in several species of insects, arachnids, and crustaceans for vibration production and propagation in the environment. Vibration stimuli are transferred over the animals’ appendage ...
DOI:
10.1016/j.asd.2022.101167

31. A review of the hexapod tracheal system with a focus on the apterygote groups

Author:
Kathleen Dittrich; Benjamin Wipfler
Source:
Arthropod structure & development 2021 v.63 pp. 101072
ISSN:
1467-8039
Subject:
Archaeognatha; Collembola; Diplura; Protura; Zygentoma; arthropods; spiracles
Abstract:
... Respiratory systems are key innovations for the radiation of terrestrial arthropods. It is therefore surprising that there is still a considerable lack of knowledge. In this review of the available information on tracheal systems of hexapods (with a focus on the apterygote lineages Protura, Collembola, Diplura, Archaeognatha and Zygentoma), we summarize available data on the spiracles (number, pos ...
DOI:
10.1016/j.asd.2021.101072

32. An overview on trilobite eyes and their functioning

Author:
Brigitte Schoenemann
Source:
Arthropod structure & development 2021 v.61 pp. 101032
ISSN:
1467-8039
Subject:
Paleozoic era; arthropods; cornea; phylogeny; vision
Abstract:
... Great progress has been made during the last decades in understanding visual systems of arthropods living today. Thus it seems worthwhile to review what is known about structure and function of the eyes of trilobites, the most important group of marine arthropods during the Paleozoic. There are three types of compound eyes in trilobites. The oldest and most abundant is the so-called holochroal eye ...
DOI:
10.1016/j.asd.2021.101032

33. Anatomy and histology of the alimentary canal of larvae and adults of Chrysoperla externa (Hagen, 1861) (Neuroptera: Chrysopidae)

Author:
Priscylla Costa Dantas; José Eduardo Serrão; Helen Cristina Pinto Santos; Geraldo Andrade Carvalho
Source:
Arthropod structure & development 2021 v.60 pp. 101000
ISSN:
1467-8039
Subject:
Chrysoperla externa; Malpighian tubules; adults; agriculture; arthropods; biological control; cells; digestive tract; diverticulum; epithelium; foregut; herbivores; hindgut; histology; lacewings; larvae; lips; microvilli; nests; peritrophic membrane; predators; proventriculus; rectum; sclerotization
Abstract:
... The larvae of the lacewing Chrysoperla externa are important predators with the potential to be used in the biological control in agriculture. Although some studies provide important data on the gut morphology in lacewings, they are limited to few species. This study describes the anatomy and histology of the alimentary canal in the predatory larvae and herbivorous adult of C. externa. In larvae, ...
DOI:
10.1016/j.asd.2020.101000

34. Coevolution between female seminal receptacle and sperm morphology in the semiaquatic measurer bug Hydrometra stagnorum L. (Heteroptera, Hydrometridae)

Author:
Romano Dallai; Pietro Paolo Fanciulli; David Mercati; Pietro Lupetti
Source:
Arthropod structure & development 2021 v.60 pp. 101001
ISSN:
1467-8039
Subject:
Hydrometridae; acrosome; arthropods; bulbs; coevolution; dimensions; epithelium; females; flagellum; flow; length; mitochondria; muscle fibers; secretion; spermatheca
Abstract:
... The coevolution between sperm length and size of the female sperm-storage organs is described for the first time within Heteroptera. The long sperm of the measurer bug Hydrometra stagnorum is characterized by the unusually long acrosome with its anterior region helically arranged, and by a very short nucleus. The sperm flagellum has a 9 + 9+2 conventional axoneme and crystallized mitochondrial der ...
DOI:
10.1016/j.asd.2020.101001

35. Comparative morphology and evolution of the cranial musculature in bees (Hymenoptera: Apoidea)

Author:
Odair Milioni de Meira; Rodrigo Barbosa Gonçalves
Source:
Arthropod structure & development 2021 v.65 pp. 101112
ISSN:
1467-8039
Subject:
Apoidea; arthropods; muscles; proboscis; skeleton; synapomorphy; terminology
Abstract:
... Comparative morphological studies in bees are mostly restricted to the skeleton, and the musculature of bees has not been explored much from this perspective. Here we investigate the head extrinsic musculature under an evolutionary perspective. The musculature of 34 bee species belonging to six major lineages and 26 tribes plus two apoid wasps is described, illustrated, and compared. A standardize ...
DOI:
10.1016/j.asd.2021.101112

36. Comparative morphology of scorpion metasomata: Muscles and cuticle

Author:
Alice Günther; Lionel Monod; Christian S. Wirkner
Source:
Arthropod structure & development 2021 v.60 pp. 101003
ISSN:
1467-8039
Subject:
Scorpiones; arthropods; chemical elements; humans; injection; interspecific variation; knowledge; muscles; research
Abstract:
... Scorpions are among the most popular research objects within Arachnida and there is an impressive body of knowledge about their biology, distribution, morphology, etc. Although the poison sting has gained a lot of attention due to its potential lethal effects to humans, hitherto, there has been no comparative morphological study on the metasoma, the body part that delivers the poisonous injection. ...
DOI:
10.1016/j.asd.2020.101003

37. Convergent evolution of optic lobe neuropil in Pancrustacea

Author:
Nicholas J. Strausfeld; Briana Olea-Rowe
Source:
Arthropod structure & development 2021 v.61 pp. 101040
ISSN:
1467-8039
Subject:
Branchiopoda; Insecta; Malacostraca; Remipedia; ancestry; arthropods; convergent evolution; insects; optic lobe; phylogeny
Abstract:
... A prevailing opinion since 1926 has been that optic lobe organization in malacostracan crustaceans and insects reflects a corresponding organization in their common ancestor. Support for this refers to malacostracans and insects both possessing three, in some instances four, nested retinotopic neuropils beneath their compound eyes. Historically, the rationale for claiming homology of malacostracan ...
DOI:
10.1016/j.asd.2021.101040

38. Coupling wings with movable hooks – resilin in the wing-interlocking structures of honeybees

Author:
Jan Michels; Esther Appel; Stanislav N. Gorb
Source:
Arthropod structure & development 2021 v.60 pp. 101008
ISSN:
1467-8039
Subject:
Hymenoptera; arthropods; confocal laser scanning microscopy; exoskeleton; flight; honey bees; mechanical loads; risk; sclerotization; wings
Abstract:
... Hymenoptera are characterised by the presence of one forewing pair and one hindwing pair. The two wings of each body side are coupled to each other during flight making the morphologically four-winged insects functionally two-winged. This coupling is formed by a row of hook-like structures, called hamuli, that are located at the leading edge of the hindwing and interlock with a thickened and recur ...
DOI:
10.1016/j.asd.2020.101008

39. Crucial role of framework with cytoskeletal actin filaments for shaping microstructure of footpad setae in the ladybird beetle, Harmonia axyridis

Author:
Ken-ichi Kimura; Naoe Hosoda
Source:
Arthropod structure & development 2021 v.60 pp. 100998
ISSN:
1467-8039
Subject:
Harmonia axyridis; actin; adhesion; arthropods; cells; cytochalasin D; hairs; insects; legs; microfilaments; microstructure; neurons; phalloidine; polymerization; pupae; staining; surfaces
Abstract:
... Insects that can walk on smooth surfaces have specialized structures, footpads, on their legs. Footpads play an important role in adhesion to the substrate surface. Although the morphology and function of footpads have been studied, the mechanism of their formation is still elusive. In the ladybird beetle (Harmonia axyridis), hairy footpads are present on the first and second tarsal segments of th ...
DOI:
10.1016/j.asd.2020.100998

40. Differentiation between left and right wing stridulatory files in the field cricket Gryllus bimaculatus (Orthoptera: Gryllidae)

Author:
Jacob Duncan; Carl D. Soulsbury; Fernando Montealegre-Z
Source:
Arthropod structure & development 2021 v.65 pp. 101076
ISSN:
1467-8039
Subject:
Gryllus bimaculatus; acoustics; arthropods; fossils; males; phylogeny; stridulation; wings
Abstract:
... Male crickets produce acoustic signals by wing stridulation, attracting females for mating. A plectrum on the left forewing's (or tegmen) anal margin rapidly strikes along a serrated vein (stridulatory file, SF) on the opposite tegmen as they close, producing vibrations, ending in a tonal sound. The tooth strike rate of the plectrum across file teeth is equal to the sound frequency produced by the ...
DOI:
10.1016/j.asd.2021.101076

41. Do holometabolous insects molt spontaneously after adulthood? An exceptional case report in fireflies (Coleoptera: Lampyridae), with discussion of its inferred endocrine regulation especially in relation to neoteny

Author:
Ming-Luen Jeng; Yuichiro Suzuki; Chih-Yuan Chang; Tsan-Rong Chen
Source:
Arthropod structure & development 2021 v.61 pp. 101013
ISSN:
1467-8039
Subject:
Lampyridae; adulthood; adults; arthropods; case studies; ecdysis; eclosion; females; integument; larvae; neoteny; oviducts; oviposition; pupae; sexual maturity; Taiwan
Abstract:
... It has been a traditionally held view that winged insects stop molting after they reach adulthood. We observed a fascinating phenomenon of a post-imago molt occurring in the neotenic females of a firefly species in Taiwan over the last two years. By rearing Lamprigera minor larvae to adults, four out of the five unmated females studied were found undergoing an extra molt 8–18 days after adult eclo ...
DOI:
10.1016/j.asd.2020.101013

42. Dorsal setae in Raoiella (Acari: Tenuipalpidae): Their functional morphology and implication in fluid secretion

Author:
Antonella Di Palma; Jenifer J. Beard; Gary R. Bauchan; Ronald Ochoa; Owen D. Seeman; Elliot W. Kitajima
Source:
Arthropod structure & development 2021 v.60 pp. 101023
ISSN:
1467-8039
Subject:
Raoiella indica; cells; chemoreceptors; dendrites; droplets; females; insects; length; mechanoreceptors; microvilli; mites; pests; receptors; secretion; transmission electron microscopy; ultrastructure; water
Abstract:
... The setae of mites are not regarded as secretory structures, yet in the flat mite genus Raoiella, each developmental stage presents droplets of fluid associated with the tips of their dorsal setae. To understand the origin of this fluid, the ultrastructure of the dorsal setae is investigated in females of Raoiella bauchani Beard & Ochoa and the invasive pest species Raoiella indica Hirst using sca ...
DOI:
10.1016/j.asd.2020.101023

43. Egg structure of five antarctoperlarian stoneflies (Insecta: Plecoptera, Antarctoperlaria)

Author:
Shodo Mtow; Brian J. Smith; Ryuichiro Machida
Source:
Arthropod structure & development 2021 v.60 pp. 101011
ISSN:
1467-8039
Subject:
Plecoptera; arthropods; chorion; eggs; sclerotization; shape
Abstract:
... The egg structures of five antarctoperlarian species – Stenoperla prasina of Eustheniidae; Austroperla cyrene of Austroperlidae; and Zelandobius truncus, Megaleptoperla grandis, and Acroperla trivacuata of Gripopterygidae, were examined in detail, and the groundplan of the egg structure was considered within the representative lineages of Antarctoperlaria and Plecoptera. The flattened egg shape an ...
DOI:
10.1016/j.asd.2020.101011

44. Evidence for wing development in the Late Palaeozoic Palaeodictyoptera revisited

Author:
Kateřina Rosová; Nina D. Sinitshenkova; Jakub Prokop
Source:
Arthropod structure & development 2021 v.63 pp. 101061
ISSN:
1467-8039
Subject:
Ephemeroptera; arthropods; fossils; instars; larvae
Abstract:
... The numerous fossil specimens described as consecutive series of different larval stages of two species, Tchirkovaea guttata and Paimbia fenestrata (Palaeodictyoptera: Tchirkovaeidae), were reinvestigated with emphasis on comparing the development and growth of their wings with that of the wings of a recent mayfly, Cloeon dipterum. This unique fossil material was for a long time considered as undi ...
DOI:
10.1016/j.asd.2021.101061

45. External structures of the metathoracic scent gland efferent system in the true bug superfamily Pyrrhocoroidea (Hemiptera: Heteroptera: Pentatomomorpha)

Author:
Vladimír Hemala; Petr Kment; Eva Tihlaříková; Vilém Neděla; Igor Malenovský
Source:
Arthropod structure & development 2021 v.63 pp. 101058
ISSN:
1467-8039
Subject:
Lygaeoidea; Pyrrhocoridae; arthropods; cotton; furrows; manubrium; odors; phylogeny; scent glands; taxonomic keys
Abstract:
... Pyrrhocoroidea represents an important group of true bugs (Insecta: Hemiptera: Heteroptera) which includes fire bugs, cotton stainers and other taxa widely used in experimental studies or known as pests. However, the morphology and phylogeny of Pyrrhocoroidea have been only poorly studied so far. Here, structures of the external scent efferent system of the metathoracic scent glands are examined i ...
DOI:
10.1016/j.asd.2021.101058

46. Female reproductive system and oogenesis in the mite Bakericheyla chanayi

Author:
Svetlana Filimonova
Source:
Arthropod structure & development 2021 v.62 pp. 101047
ISSN:
1467-8039
Subject:
Cheyletidae; Trombidiformes; bacteriocytes; early development; meiosis; mites; nuclear membrane; oocytes; oogonia; oviducts; spermatozoa; vagina; vitellogenesis
Abstract:
... The fine structure of the female reproductive system of a cheyletid mite Bakericheyla chanayi (Trombidiformes: Cheyletidae) is investigated for the first time. This system consists of an unpaired ovary, glandular oviduct, receptaculum seminis, long cuticle-lined vagina, and genital atrium terminating in the genital opening. A separate sperm access system has not been found. The receptaculum semini ...
DOI:
10.1016/j.asd.2021.101047

47. Genealogical relationships of mushroom bodies, hemiellipsoid bodies, and their afferent pathways in the brains of Pancrustacea: Recent progress and open questions

Author:
S. Harzsch; J. Krieger
Source:
Arthropod structure & development 2021 v.65 pp. 101100
ISSN:
1467-8039
Subject:
arthropods; mushroom bodies; mushrooms; neurons; phylogeny
Abstract:
... According to all latest phylogenetic analyses, the taxon Pancrustacea embraces the crustaceans in the traditional sense and the hexapods. Members of the Pancrustacea for a long time have been known to display distinct similarities in the architecture of their brains. Here, we review recent progress and open questions concerning structural and functional communalities of selected higher integrative ...
DOI:
10.1016/j.asd.2021.101100

48. Growth temperature effect on mandibles’ ontogeny and sexual dimorphism in the ambrosia beetle Xyleborus affinis (Curculionidae: Scolytinae)

Author:
Sandra M. Ospina-Garcés; Luis A. Ibarra-Juarez; Federico Escobar; Andrés Lira-Noriega
Source:
Arthropod structure & development 2021 v.61 pp. 101029
ISSN:
1467-8039
Subject:
Ambrosia; Curculionidae; Xyleborus; adults; ambrosia beetles; arthropods; forests; fungi; geometry; larvae; morphometry; ontogeny; sexual dimorphism; temperature
Abstract:
... Ambrosia beetles from the genus Xyleborus are important vectors of fungal pathogens in forest and agricultural systems, yet the influence of temperature on their morphological development has been poorly studied. Because host colonization and ambrosial fungi cultivation is mostly restricted to females, it is possible to speculate on strong sexual dimorphism expression in secondary sexual character ...
DOI:
10.1016/j.asd.2021.101029

49. Is Potimirim potimirim (Crustacea, Decapoda, Atyidae) a protandric hermaphrodite species? Behavioral and morphological aspects of the reproductive system

Author:
Marina Machado; Fernanda Cristina Salti; Giovana Bertini; Fernando José Zara; Maria Lucia Negreiros-Fransozo
Source:
Arthropod structure & development 2021 v.63 pp. 101060
ISSN:
1467-8039
Subject:
Decapoda; adults; arthropods; copulation; courtship; hermaphroditism; histology; males; secretion; spermatophores; vitellogenesis
Abstract:
... We evaluated the mating behavior of Potimirim potimirim in the laboratory based on the assumption that this caridean might be hermaphroditic. We also performed histology and scanning electron microscopy analyses of the reproductive system of females, males, and differentiated individuals. The mating experiments produced three behavioral stages, namely, interaction, lateral positioning, and copulat ...
DOI:
10.1016/j.asd.2021.101060

50. Making the grade: Physiological adaptations to terrestrial environments in decapod crabs

Author:
Victoria M. Watson-Zink
Source:
Arthropod structure & development 2021 v.64 pp. 101089
ISSN:
1467-8039
Subject:
Decapoda; arthropods; crabs; freshwater; phylogeny; transcriptomics
Abstract:
... All extant macroscopic terrestrial diversity has evolved from the ancestors of a small group of successful terrestrial colonizers, but in a few lineages this transition has independently occurred multiple times in spite of the significant functional challenges it presents. Decapod crabs have transitioned from marine to terrestrial environments at least ten times, occupy diverse habitats, and displ ...
DOI:
10.1016/j.asd.2021.101089