Juraheterosmylus minor, Wang, Yongjie, Liu, Zhiqi, Ren, Dong & Shih, Chungkun, 2010

Wang, Yongjie, Liu, Zhiqi, Ren, Dong & Shih, Chungkun, 2010, A new genus of Protosmylinae from the Middle Jurassic of China (Neuroptera: Osmylidae), Zootaxa 2480, pp. 45-53 : 49-50

Juraheterosmylus minor sp. nov.

( Figs. 1 E–F, 4A–B)

Diagnosis. Body relatively small sized. Forewing: Rs stem originated from R1 distant to the wing base; separation of MA from Rs distant to base.

Description. Head deformed, eyes protruded; antenna filiform, scape inflated, flagellum not beyond the forewing as preserved. Thorax. Prothorax short; meso- and metathorax with well developed sclerite.

Abdomen with 9 visible segments as preserved, while the recent species generally have 10 segmented abdomen. The caudal segment preserved poorly, approximately coniform.

Wing. Forewing 12.2mm length as preserved, 4.9mm width; hindwing 14.3mm length, 4.3mm width. Forewing hyaline; pterostigma light colored; nygmata and trichosors undetected because of poor preservation; cross-veins r1-rs edged with fuscous spots in base; costal cross-veins simple, with few distal forks; area between Sc and R1 slightly broadened close to the wing base; six cross-veins r1-rs (right forewing); separation of Rs from R1 distant to the base; MP forks close to the separation of MA from Rs, distant to the wing base; MP field with 3 cross-veins, MP2 with well defined distal dichotomies; Cu forked at base; CuA long, pectinately branched distally; CuP shorter than CuA, with 4 distal pectinately branches; A1 well developed, the length exceeding half of CuP; A2 and A3 not preserved. Hindwing hyaline, without any marks; costal field narrow; Rs with 12 branches.

Holotype. CNU-NEU-NN2010203. Specimen consists of the complete body with wings stretched-out, but wings are poorly preserved.

Type locality. Daohugou Village, Shantou Township, Ningcheng County, Inner Mongolia, China.

Type horizon. Jiulongshan Formation, Bathonian–Callovian boundary, Middle Jurassic.

Etymology. The specific name is from the word minor (meaning, smaller), referring to the smaller body of the new species.

Figures

FIGURE 1. Photograph and reconstruction of new species. A – B, Juraheterosmylus antiquates gen. et sp. nov. Body with three stretched-out wings. C – D, Juraheterosmylus astictus sp. nov. Body with four stretched-out wings poorly preserved. E – F, Juraheterosmylus minor sp. nov. Complete body with wings stretched-out, but wings are poorly preserved.