Tumeochrysa (Tumeochrysa) yunica Yang, 1986

Wu, Jingyu & Liu, Xingyue, 2024, Systematics of the green lacewing tribe Ankylopterygini Navás, 1910 (Neuroptera: Chrysopidae: Chrysopinae) from China, Zootaxa 5540 (1), pp. 1-169 : 94-95

[43] Tumeochrysa (Tumeochrysa) yunica Yang, 1986

( Figs 48–49 , 86 )

Tumeochrysa yunica Yang, 1986: 161 . Type locality: China (Yunnan, Dali ). Holotype in CAU.

Tumeochrysa nyingchiana Yang, 1987: 208 . Type locality: China (Xizang, Nyingchi ). Holotype in CAU. syn. nov.

Diagnosis. This species is characterized by the presence of the vertex with reddish triangular markings, the wide straight scape, and the long and pointed projections on median arch of male gonarcus.

Description. Male. Body length 12.0– 14.3 mm, forewing length 20.5–22.8 mm, hindwing length 18.4–19.8 mm.

Head with reddish triangular markings on vertex. Compound eyes prominent and black. Antennae yellow, scape and pedicel wider than flagellum. Frons, clypeus and gena without spots. Maxillary and labial palpi brownish yellow.

Thorax with dense setae, with brown stripes on lateral side.

Legs with dense setae and without spots. Pretarsal claws brown, with basal dilation.

Forewing long and narrow, without shadings. Pterostigma indistinct. Costal area with 32–34 crossveins; 21–22 radial crossveins present. m1 smaller than m2; im triangular; 15 crossveins present between Psm and Psc. c1 smaller than c2, dcc closed. A1 forked, A2 and A3 simple. Gradates in three or four divergent rows, inner gradate series extended basally parallel to Psm.

Hindwing long and narrow, without shadings. Pterostigma indistinct. Costal area with 28–29 crossveins; 21–22 radial crossveins; 14–15 crossveins between Psm and Psc. Gradates in three divergent rows, basal crossvein of inner gradate series not meeting Psm.

Abdomen with dense setae. Tergum VII and sternum VII subquadrate in lateral view; tergum VIII and sternum VIII about half length of tergum VII; sternum IX elongated and constricted near tip; tergum IX fused with ectoproct. Callus cerci ovoid. Gonarcus arcuate, median arch with long and pointed projections, lateral arms expanded; entoprocessus broad; arcessus widest at base.

Female. Body length 13.6–15.5 mm, forewing length 22.8–24.1 mm, hindwing length 19.7–21.4 mm.

Sternum VII longer than tergum VII; tergum VII subquadrate in lateral view; tergum VIII shorter than tergum VII; tergum IX fused with ectoproct. Callus cerci ovoid. Subgenitale bilobed apically; spermatheca thick, vela short, ventral impression absent, duct long and coiled.

Material. Holotype of T. yunica : ♂, China, Yunnan, Dali, Binchuan, Mt. Jizushan , light, 2860 m, 1980.IX.06 ( CAU). Holotype of T. nyingchiana : ♂, China, Xizang, Nyingchi, Bayi, 3050 m, 1978.V.02, Fasheng Li ( CAU); paratype: 1♀, China, Xizang, Nyingchi , 3000 m, 1977.IX.23, Fushun Wang ( CAU). 1♂ 1♀, China, Chongqing, Wuxi , Yintiaoling National Nature Reserve , 2022.IX.09 ( CAU); 3♀, China, Sichuan, Muyi , Wujiao , 2823–3326 m, 2020.VIII.24–25, Yuezheng Tu ( CAU); 3♂ 2♀, China, Sichuan, Yajiang , Gexigou National Nature Reserve , 2851 m, 2020.VIII.19, Xingyue Liu ( CAU); 1♂, China, Sichuan, Ganzi , Derong , 2019.VII.17 ( CAU); 1♂, China, Sichuan, Ganzi , Yajiang , 2019.VII.03 ( CAU); 3♂, China, Xizang, Nyingchi , 2017.VIII.18 ( CAU); 23♂ 3♀, China, Xizang, Nyingchi , Lulang , light, 2890–3330 m, 2017.VIII.13–14, Yunlong Ma ( CAU); 2♀, China, Xizang, Nyingchi , Gongbujiangda , Muba , 3450 m, 2021.VIII.06, Xingyue Liu ( CAU).

Distribution. China (Chongqing, Sichuan, Xizang, Yunnan).

Remarks. We re-examined the type specimens of Tumeochrysa nyingchiana Yang, 1987 and found their morphological characters are identical to those of T. yunica , especially the shape of projections on median arch of male gonarcus, and the straight antennal scape. Hence, T. nyingchiana Yang, 1987 is a junior synonym of T. yunica Yang, 1986 . T. yunica is similar to T. sinica and T. tibetana , and can be identified by the antennal scape without tubercles.

Figures

FIGURE 48. Tumoechrysa (Tumeochrysa) yunica Yang, 1986. A. Dorsal habitus; B. Head, frontal view; C. Head, lateral view; D. Head, dorsal view; E. Thorax, dorsal view; F. Male genitalia, lateral view; G. Gonarcal complex, dorsal view; H. Gonarcal complex, lateral view; I. Female genitalia, lateral view; J. Subgenitale; K. Spermatheca. Scale bar: 5 mm (A), 1 mm (B–D).

FIGURE 49. Tumoechrysa (Tumeochrysa) nyingchiana Yang, 1987. A. Dorsal habitus; B. Head, frontal view; C. Head, lateral view; D. Head, dorsal view; E. Thorax; F. Male genitalia, lateral view; G. Gonarcal complex, dorsal view; H. Gonarcal complex, lateral view. Scale bar: 5 mm (A), 1 mm (B–D).

FIGURE 86. Distribution map of species of Tumeochrysa from China.