Tipula coxitalis Alexander, 1935

Men, Qiulei, Xue, Guoxi & Wang, Fang, 2016, Taxonomy on crane flies from Mountain Huang, China, with descriptions of two new species (Diptera: Tipulidae), Zoological Systematics 41 (1), pp. 89-101 : 94

3.3 Tipula coxitalis Alexander, 1935 ( Figs 3 , 24–29 )

Tipula (Oreomyza) coxitalis Alexander, 1935 , 56: 532.

Diagnosis. Antenna with scape, pedicel and first flagellomere yellow, flagellomeres two to four bicolored, black basally and yellow apically, rest of flagellomeres uniformly black ( Fig. 24 ); prescutum gray with three brownish gray stripes, scutum yellowish brown, each lobe with two pale brown areas ( Fig. 3 ); wing obscure brown with dark stigma, R 1+2 entire, petiole of cell M 1 distinctly shorter than discal cell ( Fig. 24 ); abdominal tergites with indistinct lateral and median dark stripes ( Fig. 24 ), hypopygium brownish black.

Redescription of hypopygium. Tergite nine medially separated, protruding into a pair of horn-shaped processes in lateral angles, a pair of angular arms arising from the ventral surface of tergite nine, the arm with a truncated process directed inward ( Fig. 25 ); sternite nine with caudal margin rounded, ventral surface bearing two strands of long hairs ( Fig. 26 ); gonocoxite elongate, separated from sternite nine, gradually narrowed to apex, paliform apically, a finger-like process generated from base of gonocoxite in ventral view ( Fig. 26 ); outer gonostylus narrow, filiform ( Fig. 27 ); inner gonostylus equipped with black beak at apex, with two narrowed processes at dorsal margin ( Fig. 27 ).

Semen pump with compressor apodeme V-shaped, forming a 90° angle with posterior immovable apodeme ( Figs 28–29 ). Posterior immovable apodeme shorter than compressor apodeme, gradually narrowed to apex in lateral view ( Fig. 29 ). Anterior immovable apodeme equal in length to posterior immovable apodeme, gradually narrowed to terminus ( Fig. 29 ). Aedeagus tubular and elongated, 2.5 times longer than semen pump, acute apically.

Material examined. 2♂, Anhui Province, Mountain Huang, Hougu , 25 May 2012 ; 1♂, Anhui Province, Mountain Huang, Hougu , 1 June 2013 ; 2♂ 3♀, Anhui Province, Mountain Huang, Hougu (30°03'N, 118°07'E; elev. 413 m), 5 June 2014, coll. Qiulei Men.

Distribution. China (Anhui, Taiwan).

Figures

Figures 1–6. Thorax. 1. Pselliophora xanthopimplina. 2. Tanyptera hubeiensis. 3. Tipulodina xyris. 4. Tipula coxitalis. 5. Nephrotoma huangshanensis sp. nov. 6. Tipula (Pterelachisus) pseudobiaciculifera sp. nov.

Figures 24–29. Tipula coxitalis. 24. Habitus of male adult, lateral view. 25. Hypopygium, dorsal view. 26. Hypopygium, lateral view. 27. Outer gonostylus and inner gonostylus. 28. Semen pump, dorsal view. 29. Semen pump, lateral view.