Mangus magnus Kopylov, 2019

Kopylov, Dmitry S., 2019, New anaxyelids (Hymenoptera: Anaxyelidae) from the Cretaceous of Asia, Zootaxa 4603 (2), pp. 341-353 : 343

Mangus magnus Kopylov , sp. nov.

( Fig. 1 A–C)

Etymology. From Latin magnus —giant.

Material. Holotype: PIN 3559 /4458, part and counterpart impressions in marl. Well preserved fore wing. Bon- Tsagan; Mongolia; Lower Cretaceous, Aptian.

Description. Pterostigma, C, R, R1 dark-brown, other veins somewhat lighter, costal area slightly darkened, the rest of the wing membrane transparent, with no color pattern. Sc1 joins C and Sc2 joining R well before R and Rs furcation, pterostigma desclerotized in the apical half; 1-Rs 1.4 × as long as 1-M; Rs+M 0.8 × as long as 2-M; 2-Rs arched apicad, 1.8 × as long as 1r-rs; 2r-rs 1.4 × as long as 1r-rs; 3-Rs strongly arched downward; 4+5-Rs slightly s-shaped, 1.9 × as long as 3-Rs and 2.8 × as long as 6-Rs; 5-M 0.7 × as long as 3r-m; 3r-m curved; 1-Cu as long as 2-Cu; 4-Cu 0.5 × as long as 3+4-M; 2m-cu reclined, arched apicad; 3-A1 3.0 × as long as 2-A1; cell 1r 1.3 × as long as wide, 2r 2.5 × as long as wide.

Measurements: Fore wing length 19.3 mm, width 6.3 mm.

Remarks. With the fore wing 19.3 mm long M. magnus is hitherto the biggest known anaxyelid sawfly.

Figures

FIGURE 1. A–C—Mangus magnus gen. et sp. nov., holotype PIN 3559/4458, Bon-Tsagan, Mongolia, Lower Cretaceous: A—interpretation (showing names of the veins used in this paper), B—part, C—counterpart; D–F—Urosyntexis undosa sp. nov., holotype PIN 5340/2170, Khasurty, Russia, Lower Cretaceous: D—interpretation (showing names of the cells used in this paper), E—part, F—counterpart. Scale bars 5 mm.