Zachobiella submarginata Esben-Petersen

Zhao, Yang, Yan, Bingzhen & Liu, Zhiqi, 2015, A new species of the brown lacewing genus Zachobiella Banks from China (Neuroptera, Hemerobiidae) with a key to species, ZooKeys 502, pp. 27-37 : 30-32

Taxon classification Animalia Neuroptera Hemerobiidae

Zachobiella submarginata Esben-Petersen Figs 2, 9

Zachobiella submarginata Esben-Petersen, 1929: 33.

Diagnosis.

Triangular dark spots present at the forks of longitudinal veins in forewing and 3ir1 present before the fork of orb2; Rs forked at the base in hind wing. Female: hind margin of 9th tergite depressed forwards from lateral view and the hind margin of ventral part exceeding the posterior of ectoproct.

Measurements.

Forewing length 5.5-5.9 mm, width 1.9-2.2 mm. Hind wing length 4.0-4.8 mm, width 1.5-1.8 mm. Body length 4.2-5.0 mm.

Description.

Head. Yellowish-brown. Brown stripe present from the rear of eye to the mandible. Labial and maxillary palpi brown. Antenna light brown, more than fifty-five segments. Eyes black with a metallic luster.

Thorax. Yellowish-brown, with brown longitudinal stripes along both sides of tergite. Legs yellowish-brown without spots.

Wings (Fig. 2). Forewing oval. Yellowish-brown and hyaline, a pale brown stripe present from the base, along the hind margin and small triangular dark spots present at the forks of longitudinal veins; veins yellowish-brown with crossveins brown. Anterior radial trace bearing two ORB’s, with two secondary branches respectively; 3ir1 present before the fork of orb2; 3ir2 present after the fork of orb1 and before the fork of orb2. M with two branches and with two secondary branches respectively. CuA with four branches. CuP simple. Two gradate series, inner gradate series with two crossveins and the outer with six. Hind wing oval, pale yellow, hyaline; immaculate; veins pale yellow. Rs forked at base with four branches. M forked into two branches, with two secondary branches respectively after the gradate series. CuA with 3-4 branches. CuP simple. One gradate series, with the only one crossvein r-m.

Abdomen. Yellowish-brown. Hairy. Female terminalia (Fig. 9). Hind margin of 9th tergite depressed forwards, hind margin in the ventral part exceeding the posterior of ectoproct. Ectoproct subtriangular from lateral view. Subgenitale absent.

Distribution.

China (Yunnan, Guangxi)

Material examined.

CHINA: 3♀, Yunnan province, Ruili city, Mengxiu county. 2.v.1981, Chikun Yang (CAU); 4♀, Yunnan province, Ruili city, Mengxiu county, Gaoerxing. 4.v.1981, Chikun Yang (CAU); 1♀, Yunnan province, Ruili city, Mengx iu county, Gaoerxing. 4.v.1981, Fasheng Li (CAU); 1♀, Yunnan province, Puer city, Lancang county. 20.iv.1981, Chikun Yang (CAU); 1♀, Guangxi province, Yulin city, Bobai county, Langping. 28.v.1982, Chikun Yang (CAU).

Remarks.

This species was described by Esben-Petersen (1929) from Australia without the description of genitalia; New (1988a) figured the male and female terminalia in his revision of the Australian brown lacewings. In this paper we figure the female genitalia and provide new distribution records for this species in China. This species is related to Zachobiella yunanica and Zachobiella punctata based on the triangular dark spots present at the forks of longitudinal veins in forewing. It can be distinguished from Zachobiella punctata by having only one crossvein of gradate series in the hind wing, while in Zachobiella punctata there are two crossveins.