始新世波罗的海琥珀中发现的一种新的长翅侏儒蚱蜢提出了关于四翅侏儒蚱蜢(直翅目)退化喙的进化问题

IF 1 Q3 ENTOMOLOGY
Josip Skejo, Niko Kasalo, M. Thomas, S. Heads
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引用次数: 0

摘要

现存的侏儒蚱蜢(Tetrigidae)具有翅膀,但前翅退化为鳞片状的tegmenula,后翅仍然发育完全。Rusmithia gorochovigen. et sp. nov. (Tetrigidae, Batrachideinae, Rusmithinitrib. nov.)是根据立陶宛波罗的海琥珀中的一个成年雌性主模式描述的,该琥珀来自距今约 4000 万年前的巴顿-普里阿本纪,这是已知的唯一一种前翅延伸至后股骨一半长度的蚱蜢。除了这一非常独特的特征外,Rusmithiagen. nov.的其他特征也表明其与现生的,尤其是化石中的Batrachideinae(Danatettix Thomas, Skejo & Heads, 2019属)具有相似性。Acrydium bachofeni (Zeuner, 1937) 根据其很长的tegmenula或 Succinotettix chopardi Piton, 1938,根据其 19 节触角,可能属于该属或其同胞属;由于无法检验其模式标本,这两个种均未转入。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A new long-winged pygmy grasshopper in Eocene Baltic amber raises questions about the evolution of reduced tegmenula in Tetrigidae (Orthoptera)
Extant pygmy grasshoppers (Tetrigidae) that possess wings have the forewings reduced into scale-like tegmenula, while hind wings remain fully developed. Rusmithia gorochovigen. et sp. nov. (Tetrigidae, Batrachideinae, Rusmithinitrib. nov.) is described based on a single adult female holotype from Lithuanian Baltic amber, from the Bartonian-Priabonian age, some 40 million years ago, and this is the only known tetrigid in which tegmenula or tegmina (the forewings) extend as far as half the length of the hind femur. Besides this very unique trait, other characters of Rusmithiagen. nov. indicate similarity with extant and especially fossil Batrachideinae (genus Danatettix Thomas, Skejo & Heads, 2019). Because of the strong differences this genus and Danatettix have with American Batrachideinae, they are assigned to a new tribe, European Batrachideinae or Rusmithinitrib. nov.Acrydium bachofeni (Zeuner, 1937) might belong to this or a sibling genus based on its very long tegmenula or Succinotettix chopardi Piton, 1938, based on its 19-segmented antennae; neither species is tranferred as their types could not be examined.
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来源期刊
Journal of Orthoptera Research
Journal of Orthoptera Research Agricultural and Biological Sciences-Insect Science
CiteScore
1.90
自引率
25.00%
发文量
20
审稿时长
12 weeks
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