Dolichopeza (Sinoropeza) apicalis, Liu, Qifei & Yang, Ding, 2011

Liu, Qifei & Yang, Ding, 2011, Four new species of the subgenus Sinoropeza Alexander, with a key to world species (Diptera, Tipulidae, Dolichopeza), Zootaxa 2784, pp. 20-32 : 21-23

Dolichopeza (Sinoropeza) apicalis sp. nov.

( Figs. 1–4 , 19, 23–26 )

Diagnosis. Antennal scape yellow, pedicel light brown. Wing light yellowish, with cells c and sc yellow, extreme out end of cell r2 to m1 with sparse macrotrichia, macrotrichia in cell r2 along with C. Lobes of tergite 9 long and slender. Lobe of gonostylus bent caudally; dorsal beak of clasper of gonostylus with a small pointed process and a long pointed process.

Description. Male. Body length 10.0 mm, wing 14.0 mm.

Head ( Figs. 2, 3 ). Rostrum obscure yellow, without nasus, a tuft of hairs at the place of nasus. Vertex yellowish brown, medially slightly swollen; occiput dark reddish brown. Eyes rust. Hairs on head black. Antenna 5.0 mm long; scape yellow, pedicel light brown; flagellum black, long and cylindrical; first flagellomere much longer than other segments; terminal flagellomere very short. First flagellomere with long hairs from base to tip, flagellomeres 2–9 posteriorly with long hairs at base. Hairs on antenna black. Labellum dark brown; palpus brown.

Thorax ( Fig. 4 ). General light reddish brown. Pronotum light reddish brown; mesonotal prescutum reddish brown with three light reddish brown longitudinal stripes; scutum light reddish brown; scutellum reddish brown; mediotergite light reddish brown, with posterior half much lighter. Pleura light reddish brown. Coxae light reddish brown; trochanters light brownish yellow; femora yellowish brown basally, passing into blackish brown apically; tibiae yellowish brown; tarsi dark brown. Hairs brown. Wing ( Fig. 19) light yellowish with cells c and sc yellow. Stigma light brownish. Sc entering R1 short beyond fork of Rs. Sparse macrotrichia in extreme out end of cell r2 to m1, that in r2 along with C. Veins before cord yellow, beyond cord brownish. Halter with stem yellowish brown, knob brown.

Abdomen. Ground color brownish yellow. Tergites 1–8 brownish yellow with posterior margin brown and lateral margin blackish brown. Venter brownish yellow.

Hypopygium ( Fig. 23 ). Tergite 9 and sternite 9 fused. Tergite 9 ( Fig. 24 ) brown, posterior margin emarginated, laterally with two lobes, inner margin bearing with long hairs, ventral tip with a cluster of brush-like hairs; lower posterior margin medially with four lobes, two lateral ones greatly separated, inner margin bearing with short black spines, dorsal one of middle pair pointed dorsally, with tip slightly point, ventral one short, about half as long as the others. Lobe of gonostylus ( Fig. 25 ) long and slender, rod-like, bent caudally at middle, bearing long hairs; clasper of gonostylus ( Fig. 26 ) broad, beak obtuse, dorsal crest with a small pointed process and a long bent pointed process, posteriorly with a deep emargination before posterior crest, but not completely separated from posterior crest, basal beak thick, with tip slightly bent downwards.

Female. Unknown.

Type material. Holotype male, Hubei: Shennongjia, Qianjiaping (N 31˚24ʹ44, E 110˚24’ 39, 2070 m), 2009. VII. 4, Qifei Liu.

Distribution. China (Hubei).

Remarks. This new species is similar to D. (S.) pluricoma Alexander, 1935 , but it can be separated from the latter by the following features: scape and pedicel different from flagellum in color; macrotrichia in extreme out end of cell r2 to m1; the dorsal crest of the clasper of gonostylus with a small pointed process and a long pointed process. In D. (S.) pluricoma , the antenna is entirely dark brown; the macrotrichia distribute from cell r2 to cell m3 ( Alexander 1935); the dorsal crest of the clasper of gonostylus has an obtuse process, posterior crest has a long and strong black spine like process laterally ( Savchenko 1983).

Etymology. Name of the new species refers to the small pointed process and long pointed process on dorsal

Figures

FIGURES 1 – 4. Dolichopeza (Sinoropeza) apicalis sp. nov. 1. Habitus of male, lateral view; 2. head, lateral view; 3. head, dorsal view; 4. thorax, lateral view.

FIGURES 23 – 26. Dolichopeza (Sinoropeza) apicalis sp. nov. Male. 23. Hypopygium, lateral view; 24. ninth tergite, dorsal view; 25. lobe of gonostylus, lateral view; 26. clasper of gonostylus, lateral view. Scale bar of 23 – 24 = 0.33 mm, 25 – 26 = 0.2 mm.