Zachobiella yunanica Zhao, Yan & Liu

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 : 29

Taxon classification Animalia Neuroptera Hemerobiidae

Zachobiella yunanica Zhao, Yan & Liu sp. n. Figs 1, 5-8

Diagnosis.

Triangular dark spots present at the forks of longitudinal veins in forewing and 3ir1 present after the fork of orb2. Male: posterodorsal edge of 7th tergite slightly extending backwards; a pair of rough spiny projections present on the dorsal surface of the 8th tergite; posteroventral edge of the 9th tergite extending upwards with serrated inner margin from one third distally; both posterodorsal and posteroventral edges of ectoproct extending upwards into long arms, especially the posteroventral.

Measurements.

Forewing length 5.4-6.0 mm, width 2.1-2.2 mm. Hind wing length 4.4-4.7 mm, width 1.7-1.9 mm. Body length 4.0-5.3 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 segments. Eyes black with a metallic luster.

Thorax. Yellowish-brown, with brown longitudinal stripes along both sides of tergites. Legs yellowish-brown with no spots.

Wings (Fig. 1). Forewing shape oval. Yellowish-brown and hyaline; 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 after the fork of orb2; 3ir2 present after the fork of orb1 and before the fork of orb2. M with two branches, MA forked into 2-3 branches after the gradate series and MP into four branches. CuA with four branches. CuP simple. Two gradate series, inner gradate series with three crossveins and the outer with six. Hind wing oval. Pale yellow, hyaline; immaculate; veins pale yellowish-brown. 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 only one crossvein r-m.

Abdomen. Yellowish-brown. Pilose. Male terminalia (Fig. 5). Posterodorsal edge of 7th tergite slightly extending backwards, with a group of setae on the surface. 8th tergite fused with the 8th sternite, with a pair of distinct rough spiny projections dorsally, stout bristle tufts present below in lateral view; posteroventral edge extending backwards as a stout spine, densely covered with long setae. 9th tergite covered with short setae on the dorsal and posteroventral edge extending upwards, blade-shaped, with serrated inner margin from one third distally. The dorsal surface of ectoproct protruding slightly and densely covered with short setae; both posterodorsal and posteroventral edges extending upwards into long arms, densely covered with setae. Mediuncus of gonarcus (Figs 6-7) consisting of a pair of long curved hooks, smooth surface without any spines; extrahemigonarcus long and tapering distally as a stout spine; hemigonarcus connected into a bridge internally. Female terminalia (Fig. 8). 9th tergite split into two parts, the hind margin in the ventral part exceeding the posterior of ectoproct slightly. Ectoproct subtriangular in lateral view. Subgenitale absent.

Distribution.

China (Yunnan).

Material examined.

CHINA: Holotype, 1♂, Yunnan province, Ruili city, Mengxiu county, Gaoerxing. 4.v.1981, Chikun Yang (CAU). Paratypes, 1♂, Yunnan province, Ruili city, Mengxiu county, Gaoerxing. 5.v.1981, Chikun Yang (CAU); 1♀, Yunnan province, Ruili city, Mengxiu county, Gaoerxing. 2.v.1981, Chikun Yang (CAU).

Etymology.

The specific name refers to the type locality where this species is found.

Remarks.

This new species is closely related to Zachobiella lobata New, 1988, Zachobiella punctata Banks, 1920, and Zachobiella submarginata Esben-Petersen, 1929 based on the small triangular dark spots present at the forks of longitudinal veins in forewing. It can be distinguished from Zachobiella submarginata by 3ir1 present after the fork of orb2 in forewing while in Zachobiella submarginata it present before the fork of orb2. It also can be easily distinguished from Zachobiella punctata by having only one crossvein of gradate series in hind wing while in Zachobiella punctata there are two crossveins. In this new species two gradate series are present in the forewing and both the posterodorsal edge and the posteroventral edge of the ectoproct extend upwards into long arms. In Zachobiella lobata three gradate series are present in the forewing and only the posteroventral edge of the ectoproct extends upwards.