Tipula henanensis, Li, Yan & Yang, Ding, 2010

Li, Yan & Yang, Ding, 2010, Species of the subgenus Acutipula Alexander from Henan, east-central China (Diptera, Tipulidae), Zootaxa 2648, pp. 32-44 : 40-42

Tipula henanensis sp. nov.

( Figs. 4 , 18–21 )

Diagnosis. Tergite 9 longer than wide, with median lobe basally about 1/3 width of tergite 9, apically relatively narrow, weakly notched, bearing black spicules. Sternite 8 subterminally convex, with dense brushlike dark brown or yellow setae. Clasper of gonostylus with basal beak long, a little bended forward; outer beak produced subapically, extended into an acute spinous point at tip, with dense erect setae; apex of clasper of gonostylus with dense long erect coarse setae.

Description. Male. Body length 16–19 mm, wing 21–23 mm.

Head. Rostrum dark reddish brown, with slender nasus. Vertex and occiput blackish brown. Orbits paler. Pollen on head grayish white. Hairs on head black. Antenna nearly 5 mm long; scape and pedicel brownish yellow; flagellum blackish brown, each segment basally slightly enlarged, verticils nearly as long as corresponding segments. Probocis blackish brown?palpus blackish brown, with black hairs.

Thorax. General brown with grayish white pollen. Pronotum brown; prescutum grayish brown, with four brown longitudinal stripes, each with inconspicuous darker margins, lateral ones shorter and wider, either side with sparse hairs; anterior and lateral margins of prescutum dark reddish brown; median area of V-shaped transverse mesonotal suture dark reddish brown; scutum brown, with hairs on lateral margins; scutellum and mediotergite light brown, each with a narrow darker median longitudinal stripe. Pleura yellow; laterotergite brown with yellowish pollen. Hairs on thorax yellowish brown. All coxae and trochanters yellow with dense yellow hairs; femora brownish yellow with tips dark brown; tibiae yellowish brown with tips dark brown; tarsi yellowish brown; tibial spurs 1–2–2; claws reddish brown with tips black, each with a reddish brown basal tooth and a black median tooth. Hairs on legs black. Wing ( Fig. 4 ) grayish yellow, almost transparent. Cell C yellowish brown; cell Sc and stigma brown; area from stigma to cell dm along cord white; cell bm with a very light brown cloud at tip and white area inside; cell CuA2 with a brown spot at middle and white areas at both sides of the spot. Veins dark brown. Halter with stem dark brown, knob yellowish brown.

Abdomen. Tergites 1–4 obscure yellow, with light brown longitudinal stripes near lateral margin; sternites 1–4 yellow. Segments 5–9 blackish brown. Hairs black on tergites, yellow on sternites.

Hypopygium ( Figs. 18–21 ). Tergite 9 ( Fig. 21 ) with median lobe basally about 1/3 width of tergite 9, apically relatively narrow, weakly notched, bearing black spicules. Sternite 8 subterminally convex, with dense brush-like dark brown or yellow setae. Lobe of gonostylus ( Fig. 20 ) broadly flattened, with anterior edge straight and bearing abundant long setae, posterior edge strongly arcuate, apex constricted. Clasper of gonostylus ( Fig. 19 ) with basal beak long, a little bended forward; outer beak produced subapically, shorter than basal beak, extended into an acute spinous point at tip, with dense erect setae; apex of clasper of gonostylus with dense long erect coarse setae.

Female. Unknown.

Type material. Holotype male, Henan: Luoyang, Songxian, Baiyun Mountain (33° 40' N, 111° 52' E), 2002. VII. 22 (light trap), Ding Yang. Paratypes: same locality as holotype, 2002. VII. 24, Ding Yang, 1 male; same locality (1500 m), 2004. VII. 15, Kuiyan Zhang, 1 male; 2004. VII. 16, Kuiyan Zhang, 1 male; 2004.

VII. 17, Hui Dong, 1 male; 2008. VIII. 15 (light trap), Kuiyan Zhang, 1 male. Same locality and collector as holotype, 2002. VII. 20 (light trap), 1 male; 2002. VII. 23 (light trap), 1 male; 2002. VII. 24 (light trap), 1 male; same locality, Kuiyan Zhang: 2004. VII. 15, 1 male. 2004. VII. 16, 4 males; same locality (1500 – 2216 m), 2004. VII. 17, Hui Dong, 1 male; same locality (1500 m), 2008. VIII. 14 (light trap), Ding Yang, 2 males; 2008. VIII. 15 (light trap), Kuiyan Zhang, 2 males. Henan: Huixian, Baligou (35° 37' N, 113° 34' E), 2002. VII. 14 (light trap), Ding Yang, 1 male. Henan: Nanyang, Neixiang, Baotianman (33° 02' N, 111° 50' E), 2004. VII. 23, Hui Dong, 1 male; 2004. VII. 23, Kuiyan Zhang, 1 male; 2004. VII. 24, Kuiyan Zhang, 1 male; same locality (1400 m), 2008. VIII. 11, Xingyue Liu, 1 male.

Distribution. China (Henan).

Remarks. The new species is somewhat similar to T. vana Alexander 1934 from Russia in the following characters: tergite 9 with median lobe weakly notched at apex; clasper of gonostylus with outer beak extended into an acute spine at tip, dense long erect setae at apex of clasper of gonostylus. But it can be separated from T. vana by the shape of sternite 8 and lobe of gonostylus, including positions of setae on them, as well as by some details of clasper of gonostylus. In vana , the sternite 8 produces into a small erect to slightly retrorse naked tubercle near apex, before which there is a fringe of long erect pale setae on the median region of the sternite; the anterior edge of the lobe of gonostylus is curved backward, and there is not any long seta near base; in addition, the outer beak of the clasper of gonostylus is more slender, while the apex of the clasper of gonostylus is relatively broader ( Alexander 1934; Savchenko 1961).

Etymology. The species is named after the type locality Henan.

Figures

FIGURES 1 – 5. Wings (male). 1. Tipula (Acutipula) pseudacanthophora Yang and Yang, 1993; 2. Tipula (Acutipula) pseudocockerelliana Yang and Yang, 1995; 3. Tipula (Acutipula) gansuensis Yang and Yang, 1995; 4. Tipula (Acutipula) henanensis sp. nov.; 5. Tipula (Acutipula) buboda Yang and Yang, 1993.

FIGURES 18 – 21. Tipula (Acutipula) henanensis sp. nov. (male). 18. Hypopygium, lateral view; 19. clasper of gonostylus, lateral view; 20. lobe of gonostylus, lateral view; 21. ninth tergite, dorsal view.