A new species of Leptephialtites Rasnitsyn, 1975 (Insecta: Hymenoptera: Ephialtitidae) from the Jurassic Daohugou Beds of NE China
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Abstract:
Leptephialtites Rasnitsyn, 1975 is a diverse wasp genus of the subfamily Ephialtitinae (Ephialtitidae) in the Late Jurassic Karatau Biota from Karatau, southern Kazakhstan. It was also reported from the Middle-Late Jurassic Daohugou Biota in Ningcheng, northeastern China but no descriptions and figures had been provided. Herein, a new species is established and assigned to this genus as Leptephialtites zhangi Ding and Zhang, sp. nov. based on a female wasp from the Middle-Upper Jurassic Daohugou Beds at Daohugou Village, Wuhua Town, Ningcheng County, Chifeng City, Inner Mongolia, China. The new species shows some differences from the Karatau species in having a forewing with 1-Rs about half length of its distance to pterostigma (vs. at most as long as its distance to pterostigma) and 1r-rs complete (vs. rudimentary or completely absent), and a spindle-like metasoma broadest medially (vs. broadest in rear half). Furthermore, a key to the species of Leptephialtites is provided. Occurrence of the genus Leptephialtites in both the Karatau and Daohugou biotas confirms the close relationship between the two biotas.
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Project Supported:
the Strategic Priority Research Program of the Chinese Academy of Sciences (XDB26000000), and the National Natural Science Foundation of China (42125201, 42288201).
