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Early evolution of Nemopteridae illuminated with the first and oldest thread-winged lacewing in Cretaceous amber

文献类型： 外文期刊

作者： Lu, Xiumei 1 ; Wang, Bo 2 ; Yang, Shiyan 1 ; Liu, Xingyue 1 ;

作者机构： 1.China Agr Univ, Dept Entomol, Beijing 100193, Peoples R China

2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing, Jiangsu, Peoples R China

3.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing, Jiangsu, Peoples R China

4.Chinese Acad Sci, Inst Zool, Key Lab Zool Systemat & Evolut, Beijing, Peoples R China

5.Shanghai Acad Agr Sci, Inst Ecol & Environm Protect, Shanghai 201403, Peoples R China

期刊名称：SYSTEMATIC ENTOMOLOGY （ 影响因子：3.844； 五年影响因子：4.171 ）

ISSN： 0307-6970

年卷期： 2019 年 44 卷 1 期

页码：

收录情况： SCI

摘要： Nemopteridae are a charismatic family of lacewings distinguished by specialization of morphology in both larvae and adults as well as in their biology and behaviour. The evolutionary history of Nemopteridae is largely unknown due to the scarcity of fossil records. Here we report a new genus and species of Nemopteridae (Cretocroce xiai gen. et sp.n.) based on an exquisitely preserved adult specimen in mid-Cretaceous Burmese amber. We place the new genus in the subfamily Crocinae, which is characterized by filamentous hindwings with a sensory function as an adaptation to their cavernicolous habitats. The new genus represents the first nemopterid in amber and the oldest crocine known to date. The new fossil crocine is nearly morphologically unchanged over 99 Ma compared with its modern counterparts. Moreover, it is estimated to be closely related to some extant crocines endemic to South America based on morphological phylogenetic analysis. The new finding provides direct evidence to demonstrate the antiquity of Crocinae morphological innovation and related biology, such as pollenophagous habits, and further corroborates Gondwanan origin of the subfamily.

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