Asynaptini Enderlein, 1920

Fedotova, Zoya A., Vasilenko, Dmitry V. & Perkovsky, Evgeny E., 2024, Vladimiretskia nathani gen. et sp. nov. (Diptera, Cecidomyiidae: Porricondylinae, Asynaptini, Vladimiretskiana subtr. nov.) from Eocene Rovno amber with description of their eggs, Ecologica Montenegrina 72, pp. 146-157 : 148

Tribe Asynaptini Enderlein, 1920

Remarks. Recently the diagnosis of the tribe Asynaptini was revised following analysis of the monotypic genus Guyasutomyia Plakidas, 2023 ( Plakidas 2023). We update this by including the following characters of the female of Vladimiretskia nathani Fedotova et Perkovsky , gen. et sp. nov. described below. These include: eyes holoptic, almost completely covering the head without an eye bridge (figs 2 a, 3 i); antennae with 16 flagellomeres that possess a short neck and circumfilar sensoria (figs 1 a, 3 b, c); very short mouth parts and palpi; a wide head, unsclerotized costal cell, short straight vein R 5 not reaching wing apex; simple CuA and M 4; and the absence of r-m (figs 1 a, 3 a). The female abdomen is telescopic from segments 6–8, with an immobile 9th segment. The cerci are separate with 3-segmented dorsal lamellae (figs 1 a, e).

Previously, the collective tribe Asynaptini (167 species, 18 genera), was not divided into subtribes ( Panelius 1965; Parnell 1971; Fedotova & Sidorenko 2007; Jaschhof & Jaschhof 2013, 2023; Gagné & Jaschhof 2021; Plakidas 2023).

Asynaptini genera are extremely diverse in eye shape, width of the ocular bridge, the structure of palpi, wing venation, and male and female genitalia. However, all genera of Asynaptini have an increased number of flagellomeres (more than 14), a characteristic bend of rs, have the crossvein r-m, the curved R 5 fuses with C before or behind the wing apex, and CuA and M 4 are present, simple, well-developed, and reach the edge of the wing.

Female Asynaptini are little known. Most species were collected in various traps, and as females of closely related species and genera are very similar, species have been described primarily by males if the adults were not reared from larvae.