来自白垩纪中期缅甸琥珀的扁甲科（鞘翅目：扁甲总科）首次记录及新属新种描述

First Record of the Family Malachiidae (Coleoptera: Cleroidea) from Mid-Cretaceous Burmese Amber with a Description of Gen. et Spec. Nov.

作者信息

Tshernyshev Sergei E, Legalov Andrei A

机构信息

Institute of Systematics and Ecology of Animals, Siberian Branch, Russian Academy of Sciences, Frunze Str., 11, 630091 Novosibirsk, Russia.

Biological Institute, Tomsk State University, Lenina Prospekt, 36, 634050 Tomsk, Russia.

出版信息

Life (Basel). 2023 Sep 20;13(9):1938. doi: 10.3390/life13091938.

DOI:10.3390/life13091938

PMID:37763340

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10532814/

Abstract

A new soft-winged flower beetle, gen. et sp. nov. belonging to the tribe Malachiini (Coleoptera: Malachiidae), discovered in mid-Cretaceous Burmese amber is described. The new genus differs from the congeners of the tribe Malachiini in possessing the following characteristics: anterior tibiae widened and slightly curved inwards and excavate near the apices, tarsomeres of anterior legs depressed, 1st to 3rd tarsomeres simple and almost of equal size, tarsal comb lacking, "clavate" antennae due to dilated three apical antennomeres, 1st and 2nd antennomeres enlarged and of identical size, head strongly elongate, sides of elytra with carinate margins and widened epipleurae. This is the first record of the family Malachiidae in Burmese amber. Illustrations of the newly described species are provided. Keys for the identification of Melyrid lineage families, subfamilies of Malachiidae, tribes of the subfamily Malachiinae and genera of the tribe Malachiini are also given.

摘要

描述了一种发现于白垩纪中期缅甸琥珀中的新型软翅花萤，属于花萤族（鞘翅目：花萤科），新属。该新属与花萤族的同类属的区别在于具有以下特征：前胫节加宽，向内微弯，顶端附近有凹口，前腿跗节凹陷，第1至第3跗节简单且大小几乎相等，无跗梳，触角因顶端三个触角节膨大而呈“棒状”，第1和第2触角节膨大且大小相同，头部强烈伸长，鞘翅两侧有棱边且侧缘加宽。这是花萤科在缅甸琥珀中的首次记录。提供了新描述物种的插图。还给出了隐翅虫类群科、花萤科亚科、花萤亚科族和花萤族属的鉴定检索表。