首例描述的始新世波罗的海琥珀中的暗甲科（鞘翅目：拟步甲科）甲虫。

The first described darkling beetle of the tribe Metaclisini (Coleoptera: Tenebrionidae) from Eocene Baltic amber.

机构信息

Precaspian Institute of Biological Resources of the Daghestan Federal Research Centre of the Russian Academy of Sciences, M. Gadzhiev Str. 45, Makhachkala, Republic of Dagestan, 367000, Russia. Dagestan State University, 43a M. Gadzhiev Str., Makhachkala, Republic of Dagestan, 367000, Russia.

Royal Saskatchewan Museum, 2445 Albert St., Regina, SK, S4P 4W7, Canada. Biology Department, University of Regina, Regina, SK, S4S 0A2, Canada. Department of Ecology Evolutionary Biology, University of Kansas, Lawrence, Kansas, 66045, USA..

出版信息

Zootaxa. 2021 Jul 12;4999(3):279-284. doi: 10.11646/zootaxa.4999.3.7.

DOI:10.11646/zootaxa.4999.3.7

PMID:34810485

Abstract

The description of an extinct species of Metaclisa Jacquelin du Val, 1861 (Tenebrionidae) is presented. This genus and the tribe Metaclisini are recorded as fossils for the first time, from Eocene Baltic amber. The new species Metaclisa ottoi sp. nov. belongs to the subgenus Trichometaclisa subgen. nov. and differs from all other Metaclisini in possessing short, fine recumbent setation on the pronotum and elytra; in addition, the prosternal process in Metaclisa ottoi sp. nov. is roundly bent down and weakly projected behind the procoxae, which differs from extant species.

摘要

现描述 1 种已灭绝的 Metaclisa Jacquelin du Val, 1861（拟步甲科）物种。该属和 Metaclisini 族作为化石首次被记录，来自始新世波罗的海琥珀。新种 Metaclisa ottoi sp. nov. 属于 Trichometaclisa 亚属，与所有其他 Metaclisini 物种的不同之处在于前胸背板和鞘翅上短而细的平卧刚毛；此外，Metaclisa ottoi sp. nov. 的胸突圆形向下弯曲，在基节前方向后微弱突出，这与现存物种不同。