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You searched for: Journal name Arthropod structure & development Remove constraint Journal name: Arthropod structure & development Publication year rev 7985-2015 Remove constraint Publication year rev: 7985-2015 Source 2015 v.44 no.6 Remove constraint Source: 2015 v.44 no.6
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1. Comparative thorax morphology of death-feigning flightless cryptorhynchine weevils (Coleoptera: Curculionidae) based on 3D reconstructions

Author:
Thomas van de Kamp; Angelica Cecilia; Tomy dos Santos Rolo; Patrik Vagovič; Tilo Baumbach; Alexander Riedel
Source:
Arthropod structure & development 2015 v.44 no.6 pp. 509-523
ISSN:
1467-8039
Subject:
Curculionidae; flight; micro-computed tomography; muscles; oxygen; thorax; wings
Abstract:
... The thorax morphology, especially the muscles and the tracheal system of three flightless species of Cryptorhynchinae is examined by digital 3D reconstructions based on synchrotron X-ray microtomography and compared to other Curculionidae. Wings, metanepisternites, and muscles functional in flight are fully reduced in the species examined: Kyklioacalles roboris (Curtis), Trigonopterus scharfi Ried ...
DOI:
10.1016/j.asd.2015.07.004

2. Evolutionary morphology of the hemolymph vascular system of basal araneomorph spiders (Araneae: Araneomorphae)

Author:
Katarina Huckstorf; Peter Michalik; Martín Ramírez; Christian S. Wirkner
Source:
Arthropod structure & development 2015 v.44 no.6 pp. 609-621
ISSN:
1467-8039
Subject:
Filistatidae; arteries; hemolymph; intraspecific variation; phylogeny; surveys
Abstract:
... The superfamily Austrochiloidea (Austrochilidae and Gradungulidae) take a pivotal position in araneomorph spider phylogeny. In this discussion crevice weaver spiders (Filistatidae) are of equal interest. Especially data from these phylogenetically uncertain yet basal off branching groups can enlighten our understanding on the evolution of organ systems. In the course of a survey on the evolutionar ...
DOI:
10.1016/j.asd.2015.06.003

3. Force feedback reinforces muscle synergies in insect legs

Author:
Sasha N. Zill; Sumaiya Chaudhry; Ansgar Büschges; Josef Schmitz
Source:
Arthropod structure & development 2015 v.44 no.6 pp. 541-553
ISSN:
1467-8039
Subject:
Blattodea; Phasmida; adhesion; animals; biomechanics; feet; insects; mechanoreceptors; muscles; receptors; sensilla
Abstract:
... The nervous system solves complex biomechanical problems by activating muscles in modular, synergist groups. We have studied how force feedback in substrate grip is integrated with effects of sense organs that monitor support and propulsion in insects. Campaniform sensilla are mechanoreceptors that encode forces as cuticular strains. We tested the hypothesis that integration of force feedback from ...
DOI:
10.1016/j.asd.2015.07.001

4. Functional anatomy of the pretarsus in whip spiders (Arachnida, Amblypygi)

Author:
Jonas O. Wolff; Michael Seiter; Stanislav N. Gorb
Source:
Arthropod structure & development 2015 v.44 no.6 pp. 524-540
ISSN:
1467-8039
Subject:
Amblypygi; Araneae; ecology; evolution; glass; insects; kinematics; legs; lipids; microstructure; structure-activity relationships; tropics; ultrastructure; vertebrates; walking
Abstract:
... Whip spiders (Amblypygi) are a small, cryptic order of arachnids mainly distributed in the tropics. Some basal lineages (families Charinidae and Charontidae) have adhesive pads on the tips of their six walking legs. The present study describes the macro- and ultrastructure of these pads and investigates their contact mechanics and adhesive strength on smooth and rough substrates. Furthermore, the ...
DOI:
10.1016/j.asd.2015.08.014

5. The Jurassic Bajanzhargalanidae (Insecta: Grylloblattida?): New genera and species, and data on postabdominal morphology

Author:
Yingying Cui; Olivier Béthoux; Klaus-Dieter Klass; Dong Ren
Source:
Arthropod structure & development 2015 v.44 no.6 pp. 688-716
ISSN:
1467-8039
Subject:
Grylloblattidae; females; fossils; insects; intraspecific variation; males; new genus; new species; phylogeny; China
Abstract:
... The presumed phylogenetic link between extant ice-crawlers (Grylloblattidae = ‘crown-Grylloblattida’) and fossil species of the taxon concept Grylloblattida sensu Storozhenko (2002) is essentially based on postabdominal morphology. However, the fossil data are limited, and the interpretation is open to debate. Here we investigate a sample of a poorly known fossil ‘grylloblattidan’ family, the Baja ...
DOI:
10.1016/j.asd.2015.04.008

6. Neurons without dendrites? – A novel type of neurosecretory cell in locusts

Author:
Peter Bräunig
Source:
Arthropod structure & development 2015 v.44 no.6 pp. 604-607
ISSN:
1467-8039
Subject:
Locusta migratoria; Schistocerca gregaria; abdominal ganglia; dendrites; locusts; nerve tissue; peripheral nerves; staining
Abstract:
... Small-diameter nerves were found that are associated with the lateral peripheral nerves of the unfused abdominal ganglia of locusts. Such small nerves were observed in about 30% of all cases in Locusta migratoria, more than 60% in Schistocerca gregaria. Retrograde staining of these small nerves showed two somata in the posterior, lateral, and ventral region of an abdominal ganglion. These cells gi ...
DOI:
10.1016/j.asd.2015.06.004

7. Remarkable crystal and defect structures in butterfly eye nano-nipple arrays

Author:
Ken C. Lee; Uwe Erb
Source:
Arthropod structure & development 2015 v.44 no.6 pp. 587-594
ISSN:
1467-8039
Subject:
Nymphalis antiopa; Polygonia; butterflies; cornea; crystal structure; geometry; optical properties
Abstract:
... The corneal nipple structures on the eyes of two nymphalid butterfly species (Nymphalis antiopa and Polygonia interrogationis) are analyzed in terms of nipple arrangements and associated defects. The nipple arrays in both species have close-packed hexagonal lattices with lattice parameters of about 200 nm. The most abundant defects observed are 5–7 coordination defects that generate dislocations, ...
DOI:
10.1016/j.asd.2015.08.007

8. Testicular development and modes of apoptosis during spermatogenesis in various castes of the termite Reticulitermes labralis (Isoptera:Rhinotermitidae)

Author:
Xiao Hong Su; Jiao Ling Chen; Xiao Jing Zhang; Wei Xue; He Liu; Lian Xi Xing
Source:
Arthropod structure & development 2015 v.44 no.6 pp. 630-638
ISSN:
1467-8039
Subject:
Reticulitermes; apoptosis; caste determination; castration; instars; larvae; males; reproductive performance; reproductives; spermatids; spermatocytes; spermatogenesis; spermatogonia; spermatozoa; testes; testicular development
Abstract:
... The separation of reproductive and non-reproductive roles based on caste differentiation is the most prominent characteristic of termites. However, little is known about the mechanism of male reproductive division that underlies caste differentiation. In the present study, testicular development and stage-specific apoptotic patterns were investigated and compared during spermatogenesis in reproduc ...
DOI:
10.1016/j.asd.2015.08.009

9. Ultrastructural and functional adaptations of the female reproductive system in the family Heterozerconidae (Acari, Anactinotrichida, Gamasida, Heterozerconina) and implications for the systematic position of the group

Author:
A. Di Palma; G.J. de Moraes; B.S. Gerdeman; S. Huber; E.W. Kitajima; G. Alberti
Source:
Arthropod structure & development 2015 v.44 no.6 pp. 639-655
ISSN:
1467-8039
Subject:
Mesostigmata; female reproductive system; females; insemination; males; mites; phylogeny; spermatozoa; ultrastructure
Abstract:
... Heterozerconidae is a poorly known, early derived mite family belonging to Heterozerconina (Monogynaspida, Gamasida (= Mesostigmata)). The systematic position of the family is still controversial and little is known about the biology and anatomy of the taxon. In this paper, the gross anatomy, ultrastructure and functional morphology of the female reproductive system are described comparing genera ...
DOI:
10.1016/j.asd.2015.09.002

10. The antenna of a burrowing dragonfly larva, Onychogomphus forcipatus (Anisoptera, Gomphidae)

Author:
Manuela Rebora; Silvana Piersanti; Gianandrea Salerno; Stanislav Gorb
Source:
Arthropod structure & development 2015 v.44 no.6 pp. 595-603
ISSN:
1467-8039
Subject:
Gomphidae; antennae; chemoreceptors; flagellum; insects; larvae; lifestyle; mechanoreceptors; sensilla; setae (animal); transmission electron microscopy
Abstract:
... The larva of the dragonfly Onychogomphus forcipatus (Anisoptera, Gomphidae) has a burrowing lifestyle and antennae composed of four short and broad segments (scape, pedicel and a two-segmented flagellum). The present ultrastructural investigation revealed that different sensilla and one gland are located on the antenna. There is a great diversity of mechanoreceptors of different kinds. In particul ...
DOI:
10.1016/j.asd.2015.06.001

11. The branchiostegal lung of Uca vocans (Decapoda: Ocypodidae): Unreported complexity revealed by corrosion casting and MicroCT techniques

Author:
Francesco Paoli; Christian S. Wirkner; Stefano Cannicci
Source:
Arthropod structure & development 2015 v.44 no.6 pp. 622-629
ISSN:
1467-8039
Subject:
Uca; corrosion; crabs; gills; micro-computed tomography; oxygen
Abstract:
... The study of adaptation to terrestrial life in crabs poses several physiological questions. One of the major challenges the crabs have to face is respiration of air: most of the time, gills are unsuitable to perform oxygen exchange out of the water. Fiddler crabs, like other representatives of the Ocypodidae, have developed an additional mechanism of respiration by improving the circulation that l ...
DOI:
10.1016/j.asd.2015.09.006

12. The morphology of the eggs of three species of Zoraptera (Insecta)

Author:
Yuta Mashimo; Rolf G. Beutel; Romano Dallai; Marco Gottardo; Chow-Yang Lee; Ryuichiro Machida
Source:
Arthropod structure & development 2015 v.44 no.6 pp. 656-666
ISSN:
1467-8039
Subject:
Zorotypus; chorion; eggs; hatching; males; spermatheca; spermatozoa; synapomorphy
Abstract:
... The egg structure of Zorotypus magnicaudelli, Zorotypus hubbardi and Zorotypus impolitus was examined and described in detail. Major characteristics of zorapteran eggs previously reported were confirmed in these species, with the partial exception of Z. impolitus: 1) a pair of micropyles at the equator of the egg's ventral side, 2) a honeycomb pattern on the egg surface, 3) a two-layered chorion, ...
DOI:
10.1016/j.asd.2015.09.005

13. Cribellate thread production in spiders: Complex processing of nano-fibres into a functional capture thread

Author:
Anna-Christin Joel; Peter Kappel; Hana Adamova; Werner Baumgartner; Ingo Scholz
Source:
Arthropod structure & development 2015 v.44 no.6 pp. 568-573
ISSN:
1467-8039
Subject:
Uloborus; metatarsus; models; silk
Abstract:
... Spider silk production has been studied intensively in the last years. However, capture threads of cribellate spiders employ an until now often unnoticed alternative of thread production. This thread in general is highly interesting, as it not only involves a controlled arrangement of three types of threads with one being nano-scale fibres (cribellate fibres), but also a special comb-like structur ...
DOI:
10.1016/j.asd.2015.07.003

14. Metamorphic changes in abdominal spines of Forcipomyia nigra pupae (Diptera: Ceratopogonidae)

Author:
Aleksandra Urbanek; Malwina Richert; Małgorzata Kapusta
Source:
Arthropod structure & development 2015 v.44 no.6 pp. 554-567
ISSN:
1467-8039
Subject:
Forcipomyia; Ursidae; apoptosis; autophagy; genes; larvae; mechanoreceptors; pupae; ultrastructure
Abstract:
... Pupae of Forcipomyia nigra biting midges bear double rows of dorsal and lateral spines. Their arrangement corresponds to the distribution of larval mechanosensory setae. They are serrated simple cuticular structures with tubercles but, in contrast to larval secretory mechanoreceptors, they are not innervated and do not exhibit any pores. The ultrastructure of abdominal spines varies among differen ...
DOI:
10.1016/j.asd.2015.08.001

15. Two types of embryos with different functions are generated in the polyembryonic wasp Macrocentrus cingulum (Hymenoptera: Braconidae)

Author:
Jian Hu; Peng Wang; Wenqing Zhang
Source:
Arthropod structure & development 2015 v.44 no.6 pp. 677-687
ISSN:
1467-8039
Subject:
Macrocentrus; eclosion; eggs; embryogenesis; endoparasitoids; giant cells; hemocoel; larvae; microvilli; nutrients
Abstract:
... In this study, we report that two types of embryos, normal and pseudogerm, are generated from a single egg of the polyembryonic larval endoparasitoid Macrocentrus cingulum (Braconidae). M. cingulum larvae develop in the host hemocoel, emerging from the host to pupate. After egg cleavage and embryo proliferation dozens of normal embryos and thousands of pseudogerms are generated in the host larva. ...
DOI:
10.1016/j.asd.2015.04.007

16. The sperm pump of the hangingfly Bittacus planus Cheng (Mecoptera: Bittacidae)

Author:
Qiong-Hua Gao; Bao-Zhen Hua
Source:
Arthropod structure & development 2015 v.44 no.6 pp. 667-676
ISSN:
1467-8039
Subject:
Bittacidae; females; insects; males; muscles; phylogeny; scanning electron microscopy; spermatozoa
Abstract:
... The males of antliophoran insects usually use a sperm pump to transfer liquid sperm into the reproductive tract of the female. However, the fine structure of the sperm pump and its ejaculatory mechanism has not been thoroughly clarified in many groups of Mecoptera. In this paper, the structure of the sperm pump was investigated in the hangingfly Bittacus planus Cheng, 1949 using light and scanning ...
DOI:
10.1016/j.asd.2015.09.007

17. The visual system of the Australian ‘Redeye’ cicada (Psaltoda moerens)

Author:
Willi A. Ribi; Jochen Zeil
Source:
Arthropod structure & development 2015 v.44 no.6 pp. 574-586
ISSN:
1467-8039
Subject:
Psaltoda; case studies; color; cornea; evolution; granules; microvilli; ocelli; ommatidia; pigments; retina; screening; telescopes
Abstract:
... We investigated the functional anatomy of the visual system in the Australian ‘Redeye’ cicada Psaltoda moerens, including compound eyes and ocelli. The compound eyes have large visual fields, about 7500 ommatidia per eye and binocular overlaps of 10–15° in the frontal and of 50–60° in the dorsal visual field. The diameters of corneal facet lenses range between 22 and 34 μm and the lenses are unusu ...
DOI:
10.1016/j.asd.2015.08.005