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(Coleoptera, Curculionidae, Hyperinae) Fro1n the Mountains of S-Siberia by Andrei A

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BULLETIN DE L'INST ITUT ROYAL DES SC IENCES NATURE LLES DE BELG IQUE ENTOMOLOGIE, 69: 283-287, 1999 BULLETIN VAN 1-IET KON INKLIJK BELGISC H fNSTITUUT VOOR NATUURWETENSCHAPPEN ENTOMOLOGIE, 69: 283-287, 1999 Two new species of the genus Donus JEKEL (Coleoptera, Curculionidae, Hyperinae) fro1n the mountains of S-Siberia by Andrei A. LEGALOV Abstract head wea kl y depressed, about 1.22 times as narrow as the base of rostrum between eyes. Pronotum trapezoida l, about l .22 Two new species of the genus Donus are described. D. dudkoi sp. n. times as wide as long, strongly widened from the base to apica l (K1m1ctskii Al~1m1) is simil~r ton rnpre11s and D. ja11ae sp. n. (West one fifth, then sharp ly narrowed to subapical constriction. Scu­ Altai) is similar lo D. lepidus. A key is provided. Distribution maps for tellum small , su nken. Elytra oblong-oval, about 1.37 times as the species related to D. cupreus and a li st of Sibe ri an species of Donus is provided as well. long as wide, very weakly concave at base, almost para ll el­ sided, with smooth humeri, intervals wide, punctured striae Key Words: Taxonomy. Coleoptera, Curculionidae, Hyperinae, Do- weak, subap ical swelli ngs absent. Hi nd wings reduced. Abdo­ 1111s, Siberia, Kuznetskii Alatau, West Altai, new species, key. men concave. Pygidium covered with elytra. Legs long. Fore fe mora thi cker th an the posteri ors, clavate, without tooth. Ti­ biae curved inwards in apical third, widened to apex on middle and hind tibiae, with small mucro at apex. Tarsi pube cent, 3rd Introduction, material and methods join t bilobed; claws simple, connate at th e base. Penis wide, symmetric, weakly narrowed from the base to the level of Two new specie of the genus Do1111s JEKEL related to D. ostiu m, then strongly narrowed ap ica ll y and blun tly pointed cupreus (LEGALOV. 1997). They were found during a survey at apex, sclerotized rim in dorsal aspect nearly of the same of weevils material collected by R. Yu. Dudko in Southern width throughout even at the apex (Fig. ID). Siberia: the central part of Kuznetskii Alatau (environ ment of Female. Unknown. the Bolshoi Zub (Big tooth) mountain, Tigirtish mo un ta in range) and West Altai (Listvjaga mountain range) in 1997. Etymology. Th is new species i gladly named in honour ofYana The two new species, D. cupreus and D. lepidus (CAPIOt-.10 T, L. Lozinskaya. 1868) seems to form a compact group the genus Donus. The species of this group are morphological quite sim il ar and differ in laving the undivided surface scales. A list of the Siber­ ian species of the genus Donus is also provided in thi paper. All specimens are kept in the fo ll owing museums: ISNB - Royal Belgian Institute for atural Science, Brussel; SZMN - Siberian Zoological Museum (Novosibirsk). Do1111s ja11 ae sp. n. (Fig. I) Description. Male. Length: 5.9 mm . Body dark; tibiae, tarsi, funic lcs and scapes brown. Body de nse ly covered with sca les . Pronotum and elytra covered with solid vestiture of dark and A brownish-copper scales. Pronotum with two faint longitudinal ..__. A,C dark stripes. Elytra with faint dark spots on each interval behind B, D the middle, first interval near suture light brown, with dark apical spot, 4th-6th interval with oblique light spots on basal half, each interval with a row of short setae. Rostrum thick and short, weakly curved, roughly punctate, with median carina; c bare apical part small, weakly shining, with 5 long setae on sides. Mandibles bidentatc. Antennae scrobes deep. Antennae inserted in the apical third of rostrum, scape dilated apically, lst Fig. I - Do1111s Janae sp. n. A, elytra, dorsal view; B, head and 2nd joints of funicle long, 3rd and 4th conical, 5th, 6th and and ro trum, lateral view; C, pronotum, dorsal view; 7th globular, club narrow, with 3 joints. Head globular, fore- D. penis apex, dorsal view. Scales = 0.5 mm. 284 Andrei A. LEGALOV: Two new species of th e genus Don us JEKEL Diagnosis. The spec ies is ve ry simil ar to the congeners (D. lepidus, D. cupreus, D. dudkoi), but differes in the body shape and the sclerotized rim of penis being nea rl y of the same width even at the apex (in dorsa l view) (F igs 1-4). See also a key to species. Holotype, male (SZMN), West Altai, Listvjaga mountain range, environmet of Tesninskii Belok mountain, H-2000- 2300 m, alpine zone, 28 .vii .1997, (R.Yu. Dudko & V.K. Zin ch­ enko). Donus dudkoi sp. n. (F ig. 2) Description . Body dark, tarsi, tib iae ap ici, scapes and funicles of anten nae brown. Body dense ly covered with undi vided copper sca les. Pronotum with 3 stripes of li ghter scales. In the hind half of elytra even intervals with patches of merged dark spots. Ma le. Length: 5.1-5 .6 mm. Rostrum short, feebly curved and widened from eyes to apex. Mandib les bidentate. A th ird apex of rostrum smooth with rare deep points, shining. The antennae furro us deep, directed to lower corn ers of the eyes. Rostrum sides with rough points, sh ining. Frons wid e, plane, with points. Frons covered with dense narrow scales, directed to pronotum. Frons about 1.20 - 1.3 I times as narrow as the base of rostrum. E Eyes not protruded from head contour. Head round. Antenn ae long. Scape clavate to apex, reaching the eyes, I st and 2nd A,C,O,E joints of fun icle lengthened, 3rd and 4th con ical, 5th and 6th C,G F globu lar, 7th wide-con ica l. Clava narrow, with 3 joints. Prono­ tum approxim ate ly as long as wide or weakly transverse, Fig. 2 - Don us dudkoi sp. n. A, elytra, male, dorsal view; B. length/width - 1.1 1/ 1.22, narrowest at base, then straightl y head and rostrum, male, lateral view: C, pronotum, widened to the middle and again narrowed. Disk weakly con­ fema le, dorsa l view; D, pronotum, male, dorsal vex, shining, sma ll and densely punctate. Scutellum sma ll , view; E, elytra, female, dorsal view; F, spermathe­ triangular, sunken . Elytra oblong-oval, about 1.41-1.49 times ca, dorsal view; G, penis apex, dorsal view. Scales as long as wide, widest in the middl e. Shoulders smoothed, fore = 0.5 mm. apices tubercles absent. In tervals wide, 3rd interval of elytra somewhat rised above the oth ers. Striae deep from non -merged points. Wings red uced. Abdomen weakly concave. I st and 2nd venlrites lengthened, 5th ventrite wide, emarginate at apex . H-1500 m, 25.ix.1997, (R .Yu. Dudko). Paratypes 5 male Pygi dium hidden by elytra, made by th e 8th tergit. Legs length­ (SZMN), I male (ISNB), 5 female (SZMN), I female (!SNB), ened. Anterior eoxae large, con ic, contisuous. Femora weakly idem. thickened, without tooth. Anterior tibi ae curved, mucronate on inner apex. Tarsi long, 3rd joint with t\vo lobars. Pads with pubescence. Claws free, without tooth. Penis: Fig. 2G. A key to Siberian species Female. Length: 5.6-6. 1 mm. Larger. Elytra wider (length/ of the Donus cupreus group width - 1. 311.5) . Abdomen convex. 5th ventrite not emarginate al apex. Sclerites of 8th ventrite separated. Spermatheca as I a) Legs reddish-brown. Males narrower than females. Penis Fig. 2F. wide and stretched at about the apical third (Fig. 3D). Spermatheca strongly curved, with the apex not reaching Etrmology. This new species is named in honour of Dr. Roman the base (F ig. 3C). Length: 5.4-6.6 mm lepidus Yu. Dudko who co ll ected this species for the first time. I b) Legs black . 2 2a) Elytra narrowed just behind the middle and bluntly acu­ Diagnosis. The species is very simil ar to D. cupreus, but the minate at conjoint apex with smoother shoulders . 3 male differs from it in the following characters: smaller dimen­ 2b) Elytra almost parallel and rounded at about the apica l sions; the pronotum widened at about the middle; the base of third (Fig. I A). Body more stretched. Shoulders smooth. elylra weakly concave; penis symmetric and less sharpen. Pronotum and elytra covered with solid shroud, consist­ Females di ffer in the following characters: the wider elytra, ing of wide unsplit scales. Sculpture or pronotum rough­ the less smoothed shoulders and the more slender spermatheca er. Rostrum with in the carina middle. Apex of rostrum (Figs. 2, 4). The new pecies is differed from D. lepidus by the shining, roughly pointed. Penis wide, sharply curved and dark legs ye llow-brown in D. lepidus, the narrower pronotum narrowed in apical third (Fig. ID ). Length: 5.9 mm .. and the narrower penis (Figs. 2, 3). .... .. ....................... janae sp. nov. Holotype, male (SZMN), West Siberia, Kuznetskii Alatau, 3a) Bases of elytra strongly concave (Figs 4A, 4B). Tigirtish mountain range, 6 km SSW of Bolshoi Zub, Shoulders smooth. Peni s wider. stretched in the apica l Short Notes 285 third (Fig. 4C), apex curved to the left. Spermatheca Hypera deportatus: CAPIOM ONT, 1867 : 493, 497 sma ll er, its apex weakly stretched (F ig. 4E). Rostrum Hypera deportatus : PETR I, 190 I: 28, 37 longer (Fig. 4D). Length: 5.2-7.2 mm . cupreus Hypera deportatus: CSIKI , 1934: 14 3b) Bases of elytra ve1y weakly concave (Figs 2A, 2E). 1-/yp era deportatus: ZAS LAVSK IJ , 1979: 90 Shoulders di strict. Peni s narrower, symmetri c to base 1-/ypera punctella 801 IEMAN, 1840: 357 (F ig.
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    Skuhrovec, J (2009): Taxonomic changes inside Hyperini (Coleoptera: Curculionidae: Hyperinae). - SNUDEBILLER 10, Studies on taxonomy, biology and ecology of Curculionoidea, Mönchengladbach: CURCULIO-Institute. - This article can be found in: "(CD):\Data\10dtext154.rtf" Taxonomic changes inside Hyperini (Coleoptera: Curculionidae: Hyperinae) by Jiří Skuhrovec, Prague with 15 photographs, 5 maps [Skuhrovec] Manuscript received: 30th March 2009 Accepted: 20th April 2009 Abstract. Hypera mariei (Hoffmann, 1933) was identified as new synonym of Hypera postica (Gyllenhal, 1813). Lectotypes and paralectotypes for the following species are designated and illustrated: Hypera dapalis (Boheman, 1834), Hypera striata (Boheman, 1834) and Donus chlorocomus (Boheman, 1842). Keywords Taxonomy, Coleoptera, Curculionidae, Hyperini, new synonym, lectotypes, paralectotype, Palaearctic region. Introduction The tribe Hyperini has been allocated several important taxonomic, morphological and ecological papers in the last ten years [Alonso-Zarazaga & Lyal 1999, 2002] [Winkelmann 2001, 2006] [Alonso-Zarazaga 2005] [Skuhrovec 2005, 2006a,b, 2007, 2008, 2009] [Legalov 2007] [Skuhrovec & Borovec 2007] [Winkelmann & Bayer 2007] [Skuhrovec & Winkelmann 2008]. The last comprehensive and important taxonomic changes were published by Skuhrovec [Skuhrovec 2008]. The last two comprehensive revisions of Caucasian Donus species [Skuhrovec & Borovec 2007] and subgenus Dapalinus [Skuhrovec & Winkelmann 2008] included undesignated lectotypes of some species, e.g. Hypera dapalis
  • A Natural History of Conspecific Aggregations in Terrestrial Arthropods, with Emphasis on Cycloalexy in Leaf Beetles (Coleoptera: Chrysomelidae)

    A Natural History of Conspecific Aggregations in Terrestrial Arthropods, with Emphasis on Cycloalexy in Leaf Beetles (Coleoptera: Chrysomelidae)

    TAR Terrestrial Arthropod Reviews 5 (2012) 289–355 brill.com/tar A natural history of conspecific aggregations in terrestrial arthropods, with emphasis on cycloalexy in leaf beetles (Coleoptera: Chrysomelidae) Jorge A. Santiago-Blay1,*, Pierre Jolivet2,3 and Krishna K. Verma4 1Department of Paleobiology, MRC-121, National Museum of Natural History, Smithsonian Institution, P.O. Box 37012, Washington, DC 20013-7012, USA 2Natural History Museum, Paris, 67 Boulevard Soult, 75012 Paris, France 3Museum of Entomology, Florida State Collection of Arthropods Gainesville, FL, USA 4HIG 1/327, Housing Board Colony, Borsi, Durg-491001 India *Corresponding author; e-mails: [email protected], [email protected]. PJ: [email protected]; KKV: [email protected] Received on 30 April 2012. Accepted on 17 July 2012. Final version received on 29 October 2012. Summary Aggregations of conspecifics are ubiquitous in the biological world. In arthropods, such aggregations are generated and regulated through complex interactions of chemical and mechanical as well as abiotic and biotic factors. Aggregations are often functionally associated with facilitation of defense, thermomodula- tion, feeding, and reproduction, amongst others. Although the iconic aggregations of locusts, fireflies, and monarch butterflies come to mind, many other groups of arthropods also aggregate. Cycloalexy is a form of circular or quasicircular aggregation found in many animals. In terrestrial arthropods, cycloalexy appears to be a form of defensive aggregation although we cannot rule out other functions, particularly thermomodulation. In insects, cycloalexic-associated behaviors may include coordinated movements, such as the adoption of seemingly threatening postures, regurgitation of presumably toxic compounds, as well as biting movements. These behaviors appear to be associated with attempts to repel objects perceived to be threatening, such as potential predators or parasitoids.