Dolichosyntexis Kopylov, 2019

Kopylov, Dmitry S., 2019, New anaxyelids (Hymenoptera: Anaxyelidae) from the Cretaceous of Asia, Zootaxa 4603 (2), pp. 341-353 : 348

Genus Dolichosyntexis Kopylov , gen. nov.

Etymology. The name is derived from generic names Dolichostigma Rasnitsyn, 1968 and Syntexis . Gender masculine.

Type species. D. transbaikalicus sp. nov.

Species included. Type species only.

Distribution. Lower Cretaceous of Transbaikalia.

Diagnosis. Fore wing with costal area narrow; pterostigma very long and broad, reaching the middle of 3r cell; both 1r-rs and 2r-rs present, 1r-rs slightly longer than 2r-rs; cell 2r small, as wide as pterostigma; cell 3r very long; Rs+M furcating before 1m-cu, 2Rs+M absent, cell 1mcu hexagonal.

Comparison. Dolichosyntexis differs from all other syntexines in having very long and broad pterostigma reaching the middle 3r cell, and small 2r cell. It also differs from Eosyntexis and Cretosyntexis in presence of two r-rs veins; from Syntexis and Parasyntexis in Rs+M furcation before 1m-cu.

Remarks. By the huge pterostigma Dolichosyntexis is close to another anaxyelid subfamily—Dolichostigma-tinae. But it differs in having long Rs+M and cell 2r very short. Basing on these characters I assign the new genus to Syntexinae and not to Dolichostigmatinae .