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Coleoptera; Mesozoic era; elytra; eyes; males; new genus; new species; China
Abstract:
... Paraglaphyrus gen. n. with 4 new species, P. yixianensis sp. n. (type species), P. subtilis sp. n., P. robustus sp. n. and P. ovalis sp. n. from the Yixian Formation of China are described. Diagnosis of the genus: mandibles and labrum produced beyond apex of clypeus; eye partly divided by genal lobe; scutellum triangular; mesoepimeron clearly visible from above between pronotum and elytron; elytra ...
Scarabaeidae; aedeagus; elytra; males; new species; Armenia; Caucasus region
Abstract:
... A new species Neagolius aragatsi sp. n. is described from Aragats Mt. (Armenia). The new species differs from the widespread in the Caucasus N. abchazicus by the structure of modified front spur in male and bicolor elytra. It differs from other species by the structure of aedeagus. ...
Carabidae; body size; elytra; head; insect taxonomy; males; new species; phylogeny; plateaus; zoogeography; New Zealand
Abstract:
... Mecodema chaiup sp. nov. (Carabidae: Broscini) is described from a single male specimen collected from Mohi Bush Scenic Reserve, Maraetotara Plateau, Hawke's Bay, New Zealand. The species is unique among Mecodema in that its elytra are narrower than the pronotum at the widest point. Based on body size and elytral configuration this species could represent the first member of the ‘ costellum specie ...
... The stridulatory organ structure in two Far Eastern bark beetles, Polygraphus proximus and P. jezoensis, is described. The elytro-tergal type of the stridulatory apparatus is found in P. jezoensis. The structure involved in acoustic communication of P. jezoensis is present only in males. The plectrum of P. proximus males is re-described. Similarly to that in P. jezoensis, it is formed by two tuber ...
... We compared the postabdominal architecture of Mastigini with extremely long (Stenomastigus) or short (Palaeostigus) aedeagus. A novel mode of copulation was discovered: males of Stenomastigus insert a paramere between the female's abdomen and elytra, and the intromission is stabilized by several structures of both sexes. The intrinsic aedeagal mechanism is indicated as responsible for inflating th ...
... Among polychaetes, polynoids have the highest number of symbiotic species found living with a wide variety of marine invertebrates, including other polychaetes. Lepidasthenia Malmgren, 1867 and Lepidametria Webster, 1879 were regarded as synonyms but belong to different subfamilies, although both have species associated with thelepodid or terebellid polychaetes. In this contribution Lepidasthenia ...
Carabidae; aedeagus; color; elytra; new species; piedmont; Alps region; Italy
Abstract:
... Philorhizus occitanus sp. n. from the South-Western Alps (Ellero Valley and Maira Valley) is described. This new species is similar to P. crucifer and P. notatus as far as the external morphology is concerned, but it is distinguished by the color pattern and the shape of elytra, as well as by the features of the median lobe of aedeagus. P. liguricus, which is easily distinguished from P. occitanus ...
DUANE D. MCKENNA; BRIAN D. FARRELL; MICHAEL S. CATERINO; CHARLES W. FARNUM; DAVID C. HAWKS; DAVID R. MADDISON; AINSLEY E. SEAGO; ANDREW E. Z. SHORT; ALFRED F. NEWTON; MARGARET K. THAYER
... The beetle series Staphyliniformia exhibits extraordinary taxonomic, ecological and morphological diversity. To gain further insight into staphyliniform relationships and evolution, we reconstructed the phylogeny of Staphyliniformia using DNA sequences from nuclear 28S rDNA and the nuclear protein‐coding gene CAD for 282 species representing all living families and most subfamilies, a representati ...
... A late Holocene but prehistoric carabid beetle fauna from the lowland Makauwahi Cave, Kauai, is characterised. Seven extinct species – Blackburnia burneyi, B. cryptipes, B. godzilla, B. menehune, B. mothra, B. ovata and B. rugosa, spp. nov. (tribe Platynini) – represent the first Hawaiian insect species to be newly described from subfossil specimens. Four extant Blackburnia spp. – B. aterrima (Sha ...
Alcea rosea; Brentidae; Curculionidae; body size; buds; copulation; eggs; elytra; females; host plants; males; sexual dimorphism; sexual selection; statistical analysis; Austria
Abstract:
... Extremely divergent traits between males and females are often the result of different requirements and behaviours of the sexes and will evolve relatively rapidly under selection forces. Sexual dimorphism in Rhopalapion longirostre is predominately manifested in the length and structure of the rostrum. To estimate how sexual selection shapes mating success in this weevil we compared paired and unp ...
Elmidae; adults; antennae; drainage; elytra; habitats; male genitalia; males; new species; palps; photographs; rivers; water quality; watersheds; North Carolina
Abstract:
... Stenelmis hollandi White and Lenat, a new species of riffle beetle (Elmidae), is described from the Little River drainage of North Carolina, within the Cape Fear River basin. It may be separated from similar species by the male genitalia, small size, distinct single testaceous vitta on each elytron that does not overlap the umbone, distinctly dilated fifth tarsomere, and a mesotibial ridge in male ...
Buprestidae; elytra; new species; Mexico; New Mexico; Texas
Abstract:
... Recent collections from New Mexico and western Texas yielded striking specimens of the genus Brachys Dejean with largely blue elytra and subapical coppery patches with coppery setae. Two superficially similar species are also known from single specimens collected in Mexico. This study describes the three as Brachys rileyi Hespenheide, new species, Brachys barri Hespenheide, new species, and Brachy ...
Cretaceous period; Lucanidae; elytra; fossils; holotypes; males; new species; new subfamily; sexual dimorphism; villages; China
Abstract:
... Litholamprima longimana Nikolajev et Ren, gen. et sp. n. of the family Lucanidae is described from the Lower Cretaceous Yixian Formation. Fossils were collected from Chaomidian Village, Liaoning Province, China. The holotype of the new species is deposited in College of Life Science, Capital Normal University, Beijing. A new subfamily is established for this genus. Diagnosis of Litholampriminae su ...
Hypera postica; alfalfa; body size; elytra; fecundity; females; insects; intraspecific variation; males; multivariate analysis; oviposition; pests; sexual dimorphism; sexual selection
Abstract:
... Body size dimorphism between genders is a commonly observed phenomenon in insects, usually manifested in larger female body size. Sexual Size Dimorphism (SSD) varies from species to species, the degree and direction influenced by certain evolutionary pressures. Intraspecific variation in SSD may also occur between populations. The Hypera postica (Gyllenhal, 1813) is a well-known alfalfa plant pest ...
Buprestidae; Carabidae; Crabronidae; brood cells; elytra; females; frost; research; wasps; British Columbia
Abstract:
... Cercerisfumipennis Say, 1837 (Hymenoptera: Crabronidae) is a wasp that provisions its subterranean nests with jewel beetles (Coleoptera: Buprestidae). At 3 newly discovered colonies in British Columbia (BC), Cercerisfumipennis prey were collected by excavating the subterranean nests, using sweep nets to capture paralyzed prey in the grasp of a female returning to her nest, or collecting prey disca ...
... The parasitoid mite Aethiophenax luteoli sp. nov. (Acari: Trombidiformes: Acarophenacidae) collected from the beneath elytra of Epuraea (Haptoncus) luteola Erichson, 1843 (Coleoptera: Nitidulidae) is described and illustrated from Mazandaran province, northern Iran. This is the first record of the genus Aethiophenax Mahunka, 1981 from Asia. This genus is redefined and a key to its world species is ...
... Stable isotope analysis, which is widely used for studying trophic relationships of invertebrates, requires a correct estimation of trophic fractionation factors as well as the proper choice of reference tissues. Different organs and body parts of large insects may vary in the isotopic composition of carbon (δ¹³C) and nitrogen (δ¹⁵N), though detailed information is available for a limited set of s ...
Lochmaea; Microsporidia; biological control; biological control agents; body size; elytra; females; founder effect; genetic rescue; genetic variation; heterozygosity; lipids; mortality; overwintering; weeds; New Zealand; United Kingdom
Abstract:
... Heather beetle (Lochmaea suturalis), has underperformed as a biocontrol agent when compared with the damage it does to native heather in Europe. Mean heather beetle body size, measured by elytron area, was 10% smaller in NZ populations compared with beetles from northern UK where the NZ beetles originated. Previous research in Europe showed that small beetles suffer higher winter mortality. Field- ...
Coleoptera; body size; elytra; flight; insects; sensilla
Abstract:
... Loss of the flight ability and wing reduction has been reported for many taxa of Coleoptera. If elytra are closed, their roots are clenched between the tergum and the pleuron, forces applied to the elytra can not be transmitted to the field of campaniform sensilla situated on the root. That is why it is plausible to assume that the field becomes redundant in non-flying beetles. We examined the rel ...
... Some flying beetles have peculiar functional properties of their elytra, if compared with the vast majority of beetles. A “typical” beetle covers its pterothorax and the abdomen from above with closed elytra and links closed elytra together along the sutural edges. In the open state during flight, the sutural edges diverge much more than by 90°. Several beetles of unrelated taxa spread wings throu ...
... There is a great deal of diversity among phoretic association particularly in mesostigmatic mites that exploited insect host to complete their dispersal strategy. Similarly, the red palm weevil, Rhynchophorus ferrugineus, also has been used as a carrier by the phoretic mites. In this study, we found Centrouropoda almerodai (Uropodidae), Macrocheles mammifer, Macrocheles cf. oigru (Macrochelidae), ...
... Two monitoring methods for the endangered Comal Springs riffle beetle, Heterelmis comalensis Bosse, Tuff, and Brown, 1988, were evaluated. The first used cotton cloth “lures” lodged within the substrate in close proximity to spring openings. The second evaluated the feasibility of marking H. comalensis with paint. During our evaluation, biofilms grew upon the lures over time, and within two weeks ...
Dytiscidae; body length; elytra; head; male genitalia; new species; Mexico
Abstract:
... Neoclypeodytes moroni Arce-Pérez and Novelo-Gutiérrez, new species, is described and illustrated. Neoclypeodytes moroni is characterized by a total body length of 2.5 mm; frontal region of the head with two rows of fine punctures; clypeus elongate, trapezoidal, and fissured, its margins raised and apex slightly rounded and smooth; metacoxal length/ width ratio 3.55–3.87; elytra without sutural str ...
Carabidae; body size; ecology; elytra; endophallus; new species; Afghanistan; China
Abstract:
... Two new species of carabid beetles are described from Xinjiang-Uygur Autonomous Region of China: Leistus (Pogonophorus) kazenasi sp. n. from the Dunsala Valley on the Khalyktau Mt. Range and the Kokterek Valley on the Narat Mt. Range, similar to L. spinangulus Reitter, 1913 and L. mitjaevi Kabak, 2008 but differs by larger body size, the shape of the pronotum and elytra, and the conformation of th ...
Scarabaeidae; elytra; new species; scientific illustration; taxon descriptions; taxonomic keys
Abstract:
... The species of the genus Sisyphus Latreille, 1807, with tuffs of setae on elytra are studied. Seven new species belonging to this group are described, illustrated and compared with their most related species: two species with normal wings, S. manni n. sp. and S. perissinottoi n. sp., and five brachypterous species, S. jossoi n. sp., S. janssensi n. sp., S. bouyeri n. sp., S. felschei n. sp. and S. ...
Macrotermes; Scarabaeidae; body size; elytra; fungus gardens; mouthparts; new species; solid wastes; trichomes; Cambodia
Abstract:
... Termitotrox venus sp. n. is described from Cambodia and represents the second discovery of Termitotrox Reichensperger, 1915 from the Indo-Chinese subregion of the Indomalayan region. Most of the type series was collected from refuse dumps in fungus garden cells of Macrotermescf.gilvus (Hagen, 1858). Macrotermes Holmgren, 1910 was previously an unknown host of Termitotrox species. The new species i ...
... A new species of Anomala related to A. ardoini Frey, 1971 (Laos) and certain East Palearctic species (A. gracilenta Reitter, 1903, A. keithi Zorn, 2011, A. obscurata Reitter, 1903, A. palleola (Gyllenhal, 1817) and A. potanini Medvedev, 1949) is described from Dalat Plaeau (Vietnam). This group of species appears to be unique within the other Anomalini in the structure of the aedeagus in the males ...
Coleoptera; abdomen; elytra; flight; insects; models; scanning electron microscopy
Abstract:
... Biological world always provides inspirations for engineering designs, and insects are important targets to mimic. For the Coleoptera, its flight has been emphasized for long. However, the invisible folding procedure of hind wings, which occurs under the stiff elytra after flight, still remains unknown. In this paper, the wing folding process and the surficial microstructures of elytra, hind wing ...
Eleodes; elytra; females; new subgenus; plateaus; Mexico
Abstract:
... Chaseleodes Thomas, a new subgenus of Eleodes Eschscholtz, is described and proposed to hold two species from central Mexico, Eleodes connatus Solier and Eleodes curtus Champion (designated as type species). A key, map, illustrations, and diagnoses are provided for the species. Characters that in combination define the new subgenus include the wedge-shaped elytron, broadly based epipleuron, and th ...
... Negotiation models of biparental care predict that parents should partially compensate for a reduction in the level of care that their partner provides. A number of studies, mostly with monogamous birds, have tested this prediction by removing or manipulating the level of effort of one parent and then measuring the response of the other parent. In this study, we test this prediction with the buryi ...
... Geographical variation of elytra color pattern in two sibling ladybird species, Harmonia yedoensis and H. axyridis (Coleoptera: Coccinellidae), was examined. The two species are distributed sympatrically in central Japan; however, only H. yedoensis and H. axyridis occur in the Ryukyu Islands (southern Japan) and Hokkaido island (northern Japan), respectively. The frequency of elytra color patterns ...
Coleoptera; adults; amber; elytra; fossils; new genus; phylogeny; tongue; China
Abstract:
... Fossil Artematopodidae are rarely collected and previously confined to middle Eocene Baltic amber. Here we report the first definitive artematopodid, Sinobrevipogon jurassicus gen. et sp.n., from the Middle Jurassic Daohugou beds (c. 165 Ma) in Inner Mongolia, northeastern China. It exhibits a number of defining features of Artematopodidae, including paired carinae on prosternum and an internal ap ...
... Some insects produce and use sound during multiple behaviors including many aspects of reproduction. Variation in call structure depends on the evolved morphological structures used to produce the sound and encode function. Beetles in the genus Nicrophorus produce stridulation by rubbing plectra, located on the ventral side of the elytra, against a pars stridens, located on the caudal end on the f ...
Cleridae; elytra; head; new species; Korean Peninsula
Abstract:
... A new species of Coptoclerus Chapin (Coleoptera: Cleridae), C. quadrimaculatus Lim sp. nov., is described from Korea. Coptoclerus is reported from the country for the first time. The new species differs from congeners in having the following characteristics: head and the prothorax black; each elytron with two separated black maculations and a transverse thick black band on the middle of disc; rasp ...
... Insect apolipophorin‐III is an exchangeable protein that is abundantly found in the hemolymph, and serves an important role in lipid transport, development, and innate immunity. In this study, we examined the role of apolipophorin‐III (TmapoLp‐III) during the adult eclosion stages of Tenebrio molitor by RNA interference (RNAi) analysis. After silencing of the mRNA transcripts at both larval and pu ...
... The genera Asactopholis, Dasylepida and Lepidiota of the Indochinese fauna (without Peninsula of Malacca) are discussed. Nine new species and subspecies are described: A. bicolor nigrimargo subsp. n., A. dalatensis sp. n., D. rudepunctata aciculata subsp. n., L. acuminatops sp. n., L. adelphopyga sp. n., L. irokezica sp. n., L. medvedevi sp. n., L. nho sp. n. and L. omnipodex sp. n. The following ...
elytra; Attelabidae; legs; amber; new species; Curculionidae; Dominica
Abstract:
... Summary New species of rhynchitid weevils, Rhynchitobius tanyrhinus n. sp . and R . xuthocolus n. sp . (Coleoptera: Rhynchitidae) in the tribe Auletini are described from Dominican amber. The former species is characterized by a long rostrum, narrow pronotum and elytra, rugose elytral intervals and distinct elytral striae. The latter species has a short rostrum, wide antennal club, yellow legs, no ...