Sakhalinencyrtus leleji Simutnik gen. et sp. nov. of earliest Encyrtidae (Hymenoptera, Chalcidoidea) from Sakhalinian amber

Autor: Serguei A. Simutnik, Evgeny E. Perkovsky, Dmitry V. Vasilenko
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Journal of Hymenoptera Research, Vol 84, Iss , Pp 361-372 (2021)
Druh dokumentu: article
ISSN: 1314-2607
DOI: 10.3897/jhr.84.66367
Popis: Another earliest representative of the family Encyrtidae, Sakhalinencyrtus leleji Simutnik gen. et sp. nov., is described and illustrated based on a male specimen from the middle Eocene Sakhalinian amber. Similarly to other Encyrtidae from Sakhalinian amber, the new fossil fundamentally differs from encyrtids from late Eocene European ambers as well as from modern ones. Moreover, it probably belongs to a stem group of the family. The new genus is characterized by extremely apical position of cerci, long veins of the forewing with expanded parastigma, stigmal vein with long uncus, and absence of filum spinosum. The forewing venation of the new genus is very similar to that of Sugonjaevia Simutnik, 2015, but these genera differ by the structure of Mt8, hypopygium, genitalia, and clava.
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