Toxorhina (Ceratocheilus) huanglica, Zhang, Xiao, Li, Yan & Yang, Ding, 2015

Zhang, Xiao, Li, Yan & Yang, Ding, 2015, A review of the genus Toxorhina Loew from China, with descriptions of three new species (Diptera, Limoniidae, Limoniinae), ZooKeys 480, pp. 59-80 : 66

Taxon classification Animalia Diptera Limoniidae

Toxorhina (Ceratocheilus) huanglica sp. n. Figs 5, 6

Diagnosis.

Rostrum shorter than wing. Prescutum brownish yellow with three broad dark brown stripes. Pleuron dark yellow with two black stripes. Wing tinged pale brown; R2+3 ending at or slightly beyond end of basal section of R4+5, basal section of CuA1 at or slightly before fork of M. Abdomen bicolored. Gonostylus with a stout spine near middle. Rods of aedeagus relatively short.

Description.

Male. Body length 5.0-5.5 mm, wing length 4.5-5.0 mm, rostrum length 3.5 mm.

Head (Fig. 5b). Brownish black. Hairs on head black. Antenna length 0.6-0.7 mm. Scape and pedicel dark brown; flagellomeres brown. Pedicel enlarged and nearly globose. First flagellomere subconical; remaining flagellomeres cylindrical, each flagellomere longer and slenderer than previous one, terminal two flagellomeres longest with several long hairs. Rostrum brownish black with black hairs.

Thorax. Pronotum dark brown. Prescutum brownish yellow with three broad dark brown stripes. Scutum dark brown with middle area paler, each lobe with a light yellow spot. Scutellum brown. Mediotergite dark brown to brownish black (Fig. 5c). Pleuron (Fig. 5a) dark yellow with two black stripes, upper one extending from cervical region to mediotergite, lower one extending from fore coxa to middle coxa. Hairs on thorax brownish black. Fore and middle coxa brownish yellow, hind coxae pale yellow; trochanters brownish black; femora brownish yellow with tips darker; tibiae and tarsi dark brown. Hairs on legs black. Wing (Fig. 5d) tinged pale brown; veins pale brown, darker at cord, m-m and basal section of M3. Venation: Sc1 a short distance beyond origin of Rs, Sc2 a slightly greater distance before origin of Rs; R2+3 ending at or slightly beyond end of basal section of R4+5; basal section of CuA1 at or slightly before fork of M; A1 curved suddenly at middle, basal half nearly straight. Haltere length 0.7-0.8 mm, pale yellow.

Abdomen (Fig. 5a). Tergites and sternites yellow with caudal halves brownish black. Segments six to eight uniformly brownish black. Tergite nine yellow. Sternite nine brownish yellow to brown. Hairs on abdomen brownish black.

Hypopygium (Fig. 6). Generally dark brown. Gonocoxite conical, dorsal face with several setae and a blunt lobe near base, this lobe with numerous setae. Gonostylus with a stout spine near middle, basal half stout with a longitudinal groove. Interbase rod-shaped. Aedeagus with tip divergent, rods relatively short.

Female. Unknown.

Type material.

Holotype male (CAU), China: Yunnan, Lvchun, Mt. Huanglian, Qimaba (22°48'36"N, 102°14'24"E, 1012 m), 2013.VI.11, Jinying Yang (light trap). Paratypes: 4 males (CAU), same data as holotype.

Distribution.

China (Yunnan).

Etymology.

The species is named after the type locality Mt. Huanglian.

Remarks.

This new species is somewhat similar to Toxorhina (Ceratocheilus) fuscolimbata in having the similar body color, but it can be easily distinguished from the latter by the wing without conspicuous black seams and with basal section of CuA1 at or slightly before fork of M (Fig. 5d), the male hypopygium with one pair of gonostyl, the gonocoxite with a blunt lobe near base, and the interbase rod-shaped (Fig. 6). In Toxorhina (Ceratocheilus) fuscolimbata , the wing has the black seams along several veins, the basal section of CuA1 is beyond fork of M (Fig. 3d), the male hypopygium has two pairs of gonostyl, the gonocoxite has no lobe near base, and the interbase is oval (Fig. 4).