新热带区外显胸隐翅虫属（鞘翅目，阎甲科）的新属及新种

New genera and species of Neotropical Exosternini (Coleoptera, Histeridae).

作者信息

Caterino Michael S, Tishechkin Alexey K

机构信息

Department of Invertebrate Zoology, Santa Barbara Museum of Natural History, 2559 Puesta del Sol, Santa Barbara, CA 93105 USA.

Department of Invertebrate Zoology, Santa Barbara Museum of Natural History, 2559 Puesta del Sol, Santa Barbara, CA 93105 USA ; Louisiana State Arthropod Museum, Department of Entomology, Louisiana State University, 404 Life Sciences Building, Baton Rouge, LA 70803 USA.

出版信息

Zookeys. 2014 Feb 18(381):11-78. doi: 10.3897/zookeys.381.6772. eCollection 2014.

We describe the following 8 new genera and 23 new species of Neotropical Exosternini. Conocassis gen. n. (Conocassis minor sp. n. [type species], Conocassis dromedaria sp. n., Conocassis trisulcata sp. n., and Conocassis invaginata sp. n.), Enkyosoma gen. n. (Enkyosoma rockwelli sp. n.), Pluricosta gen. n. (Pluricosta onthophiloides sp. n.), Pyxister gen. n. (Pyxister devorator sp. n. [type species] and Pyxister labralis sp. n.), Chapischema gen. n. (Chapischema doppelganger sp. n.), Scaptorus gen. n. (Scaptorus pyramus sp. n.), Lacrimorpha gen. n. (Lacrimorpha glabra sp. n. [type species], Lacrimorpha balbina sp. n., Lacrimorpha subdepressa sp. n., and Lacrimorpha acuminata sp. n.), Crenulister gen. n. (Crenulister grossus sp. n. [type species], Crenulister explanatus sp. n., Crenulister dentatus sp. n., Crenulister impar sp. n., Crenulister umbrosus sp. n., Crenulister simplex sp. n., Crenulister paucitans sp. n., Crenulister spinipes sp. n., and Crenulister seriatus sp. n.) These all represent highly distinctive and phylogenetically isolated forms, almost invariably known from very few specimens. All but one species have been collected only by passive flight intercept traps, and nothing significant is known about the biology of any of them.

我们描述了新热带区外胸骨甲族的以下8个新属和23个新物种。锥胸甲属（Conocassis gen. n.）（小锥胸甲Conocassis minor sp. n. [模式种]、单峰锥胸甲Conocassis dromedaria sp. n.、三沟锥胸甲Conocassis trisulcata sp. n.和内陷锥胸甲Conocassis invaginata sp. n.）、凹体甲属（Enkyosoma gen. n.）（罗克韦尔凹体甲Enkyosoma rockwelli sp. n.）、多脊甲属（Pluricosta gen. n.）（拟嗜粪多脊甲Pluricosta onthophiloides sp. n.）、食颚甲属（Pyxister gen. n.）（食颚食颚甲Pyxister devorator sp. n. [模式种]和唇食颚甲Pyxister labralis sp. n.）、仿奇甲属（Chapischema gen. n.）（仿奇仿奇甲Chapischema doppelganger sp. n.）、锥捕甲属（Scaptorus gen. n.）（金字塔锥捕甲Scaptorus pyramus sp. n.）、泪形甲属（Lacrimorpha gen. n.）（光滑泪形甲Lacrimorpha glabra sp. n. [模式种]、巴尔比纳泪形甲Lacrimorpha balbina sp. n.、微凹泪形甲Lacrimorpha subdepressa sp. n.和尖突泪形甲Lacrimorpha acuminata sp. n.）、圆齿甲属（Crenulister gen. n.）（粗壮圆齿甲Crenulister grossus sp. n. [模式种]、扁平圆齿甲Crenulister explanatus sp. n.、齿状圆齿甲Crenulister dentatus sp. n.、不等圆齿甲Crenulister impar sp. n.、阴暗圆齿甲Crenulister umbrosus sp. n.、简单圆齿甲Crenulister simplex sp. n.、稀少圆齿甲Crenulister paucitans sp. n.、刺足圆齿甲Crenulister spinipes sp. n.和锯齿圆齿甲Crenulister seriatus sp. n.）。这些均代表高度独特且在系统发育上孤立的类群，几乎无一例外仅从极少标本得知。除一个物种外，所有物种均仅通过被动飞行拦截陷阱采集到，且对它们的生物学特性均知之甚少。