缅甸白垩纪中期琥珀中新的 Postopsyllidiidae 的进化意义及缨翅目若虫的保守性。

Evolutionary implications of new Postopsyllidiidae from mid-Cretaceous amber from Myanmar and sternorrhynchan nymphal conservatism.

机构信息

Institute of Biology, Biotechnology and Environmental Protection, University of Silesia, 9, Bankowa Street, 40-007, Katowice, Poland.

Laboratory of Evolutionary Entomology and Museum of Amber Inclusions, Department of Invertebrate Zoology and Parasitology, University of Gdańsk, 59, Wita Stwosza Street, 80-308, Gdańsk, Poland.

出版信息

Sci Rep. 2022 Sep 30;12(1):16446. doi: 10.1038/s41598-022-20897-y.

DOI:10.1038/s41598-022-20897-y

PMID:36180778

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9525616/

Abstract

Nymphs of extinct sternorrhynchan hemipterans are extremely rare, although very important for understanding of evolutionary traits of these insects. A protopsyllidioid nymph, in mid-Cretaceous amber from Kachin, Myanmar, placed in the family Postopsyllidiidae, is the first nymph of this family to be found in the fossil. Postopsyllidiidae previously comprised the sole genus Postopsyllidium with a few species: P. rebeccae, P. grimaldii and P. burmaticum from Kachin amber (Cenomanian) and P. emilyae from Turonian amber of New Jersey. Here, we report a new genus and species of postopsyllid Megalophthallidion burmapteron gen. et sp. nov. (imago) and the first known nymph of the family ascribed to the same genus. An overview of the fossil record of sternorrhynchan nymphs, and the importance of this finding, unlocking a new and complementary window to understanding the evolutionary traits of Protopsyllidioidea and other Sternorrhyncha hemipterans are presented.

摘要

已灭绝的半翅目缨尾目若虫极为罕见，但对于了解这些昆虫的进化特征非常重要。缅甸克钦邦白垩纪琥珀中的一种原姬蝽若虫，被归入后姬蝽科，这是该科在化石中首次发现的若虫。后姬蝽科以前只包含一个属后姬蝽属，有几个种：来自克钦琥珀的 P. rebeccae、P. grimaldii 和 P. burmaticum 以及来自新泽西 Turonian 琥珀的 P. emilyae。在这里，我们报告了一个新的后姬蝽属和 Megalophthallidion burmapteron 属的新种（成虫），以及该科已知的第一个归属于同一属的若虫。本文概述了缨尾目若虫的化石记录，以及这一发现的重要性，为了解 Protopsyllidioidea 和其他半翅目缨尾目昆虫的进化特征提供了一个新的、互补的视角。