一种来自波罗的海琥珀的新的皮克诺默斯属（Pycnomerus Erichson）化石物种（鞘翅目：缩头甲科），以及一个现生北美同属物种的替代名称。

A new fossil species of Pycnomerus Erichson (Coleoptera: Zopheridae) from Baltic amber, and a replacement name for a Recent North American congener.

作者信息

Bukejs Andris, Alekseev Vitalii I, Cooper David M L, King Gavin A, Mckellar Ryan C

机构信息

Institute of Life Sciences and Technologies, Daugavpils University, Vienības 13, Daugavpils, LV-5401, Latvia..

出版信息

Zootaxa. 2019 Jan 29;4550(4):565-572. doi: 10.11646/zootaxa.4550.4.6.

DOI:10.11646/zootaxa.4550.4.6

PMID:30790833

Abstract

Based on a well-preserved specimen from Eocene Baltic amber, the second fossil species belonging to the genus Pycnomerus Erichson (Coleoptera: Zopheridae: Zopherinae), P. agtsteinicus Bukejs, Alekseev McKellar sp. nov. is described and illustrated using synchrotron X-ray micro-CT observations. The new species adds to the sparse fossil record of Pycnomerus, which consists of the Baltic amber discoveries, and only four subfossil records in sediments that are less than one million years old. As part of this work, the new replacement name Pycnomerus lordi Bukejs, Alekseev McKellar nom. nov. is also established for the extant species Pycnomerus sulcicollis LeConte, 1863 [non Pycnomerus sulcicollis (Germar, 1824)].

摘要

基于始新世波罗的海琥珀中保存完好的标本，描述并利用同步加速器X射线显微CT观察结果展示了属于Pycnomerus Erichson属（鞘翅目：拟步甲科：拟步甲亚科）的第二个化石物种——P. agtsteinicus Bukejs, Alekseev McKellar sp. nov.。新物种丰富了Pycnomerus稀少的化石记录，该记录包括波罗的海琥珀中的发现，以及在不到100万年历史的沉积物中仅有四个亚化石记录。作为这项工作的一部分，还为现存物种Pycnomerus sulcicollis LeConte, 1863 [非Pycnomerus sulcicollis (Germar, 1824)]建立了新替代名Pycnomerus lordi Bukejs, Alekseev McKellar nom. nov.。