Tipula (Vestiplex) quasimarmoratipennis Brunetti, 1912

Men, Qiu-Lei, Starkevich, Pavel, He, Li-Fan, Shi, Jian-Xiong, Shi, Mei-Ying, Zhang, Zhong-Xin, Hu, Jia-Hui, Chen, An & Zhang, Yi-Xue, 2021, Tipula (Vestiplex) from Yunnan and Tibet, China: one new species and redescriptions of five known species (Diptera: Tipulidae), Acta Entomologica Musei Nationalis Pragae 61 (2), pp. 341-362 : 354-357

publication ID	https://doi.org/ 10.37520/aemnp.2021.020
publication LSID	lsid:zoobank.org:pub:C1A6C884-743E-471A-9632-4A769F6BC0EB
persistent identifier	https://treatment.plazi.org/id/67200C69-FFA5-FD6E-F2E5-FEA5FE0CD220
treatment provided by	Plazi
scientific name	Tipula (Vestiplex) quasimarmoratipennis Brunetti, 1912
status

Treatment

Tipula (Vestiplex) quasimarmoratipennis Brunetti, 1912 View in CoL

( Figs 69–82 View Figs 69–73 View Figs 74–82 )

Tipula quasimarmoratipennis Brunetti, 1912:320 View in CoL (original description).

Tipula quasimarmoratipennis View in CoL : Bඋඎඇൾඍඍං (1918: 262); Eൽඐൺඋൽඌ (1924: 305).

Tipula (Vestiplex) quasimarmoratipennis : Aඅൾඑൺඇൽൾඋ (1935a: 119); Aඅൾඑൺඇൽൾඋ (1942: 46); Aඅൾඑൺඇൽൾඋ (1963a: 23); Aඅൾඑൺඇൽൾඋ & Aඅൾඑൺඇൽൾඋ (1973: 64); JඈඌൾඉH (1974: 271).

Type locality. India, West Bengal, Darjeeling.

Material examined. CHINA: Yඎඇඇൺඇ: 1 ♂, Zhanatong, Bingzhongluo, Gongshan County, 11.vi.2019, coll. Q. Men & L. Lv ( AQNU); 1 ♂, Gongdangshenshan, Bingzhongluo, Gongshan County, 12.vi.2019, coll. Q. Men & L. Lv ( AQNU). INDIA: MൾGHൺඅൺඒൺ: 1 ♂, above Tura, Garo hills, 3500–3900 ft., ix.1917, coll. S.W. Kemp ( BMNH); 1 ♀, Shilong, iv.1920, coll. T. B. Fletcher ( BMNH); 1 ♂, Shillong, 5000 ft., 30.v.18, coll. T. B. Fletcher ( BMNH); 2 ♂♂, Shillong, ix.–x.1918, coll. T. B. Fletcher ( BMNH); 1 ♂, Assam, Cherrapunyi, 4400 ft., 12.x.1918, S. W. Kemp (genitalia on slide) ( USNM); 1 ♂, Assam, above Tura, Garo Hills, 3500–3900 ft., ix.1917, S. W. Kemp, Homotype, Edwards ( USNM), antenna, leg, wing and genitalia on two slides ( USNM).

Redescription. Male ( Figs 69–73 View Figs 69–73 ). Body length 14.0– 14.3 mm (excluding antenna, n = 2), wing length 19.8–20.1 mm (n = 2), length of antenna: 3.7–3.9 mm (n = 2).

Head. Generally greyish-brown, vertex and occiput with dark brown linear mark ( Fig. 69 View Figs 69–73 ). Rostrum yellowish- -brown, nasus yellow, very stout, acute at apex, densely covered with black setae. Antenna 13-segmented, if bent backward almost reaching base of 1 st abdominal segment. Scape and pedicel yellow, first flagellomere expanded in apical half, yellowish, rest of flagellomeres enlarged at base, dark brown.Apical flagellomere light brown, distinctly shorter than preceding flagellomere. Basal enlargement with longest verticils distinctly longer than corresponding flagellomeres. Whole flagellum densely covered with short and light setae. Palpus with first segment brown, rest of segments lighter in coloration, last segment significantly longer than basal three segments together.

Thorax. Pronotum yellowish-brown with some dark regions medially and laterally. Prescutum and presutural scutum greyish-brown with four brown stripes, median stripes narrowed at base and gradually expanded to rounded apex, merging at both ends, lateral stripes rounded apically, marginally suffused with brown on inner sides ( Fig. 70 View Figs 69–73 ). Interspace between median and lateral stripes yellowish with light and short setae. Postsutural scutum greyish- -brown, each lobe with two brown triangular markings ( Fig. 70 View Figs 69–73 ). Scutellum greyish-brown with brown median vitta. Postnotum greyish-brown with brown median vitta. Pleuron entirely yellow ( Fig. 71 View Figs 69–73 ). Legs with coxae, trochanters and basal fourth of femora yellow, rest of femora gradually changing to brown at tip, tibiae and tarsi entirely brown. Halter with stem yellow, knob brown. Wing light brown, cell sc slightly darker than ground color, variegated by light areas including apical area of cell c, median area of 1 st cell of r 1, base of stigma, light band across apical area of cell r

, base of cells r

, r

and r

, and median area of discal cell; other light areas including base and apical areas of bm, apical area of cell cua ( Fig. 72 View Figs 69–73 ). Venation: R 1 atrophied in basal half, R 2+3+4 significantly shorter than R 3, R 4 distinctly shorter than Rs, R 5 curved in apical half, r-m half the length of R 5 base, discal cell narrow, longer than petiole of cell m 1, cell m 1 2.9 times longer than its petiole ( Fig. 72 View Figs 69–73 ).

Abdomen. Basal four abdominal segments yellow with brown lateral stripes, median stripe brown and intermittent, and rest of abdominal segments including hypopygium dark brown ( Fig. 73 View Figs 69–73 ).

Hypopygium. Male hypopygium with tergite nine separated from sternite nine except for base ( Fig. 74 View Figs 74–82 ). Tergite nine divided at midline by pale membrane ( Figs 74, 75 View Figs 74–82 ). Dorsal portion of tergite nine covered with setae, posterior margin with pair of thumb-shaped lobes directed caudad and densely covered with setae ( Fig. 74 View Figs 74–82 ). Ventral portion of tergite nine yellow with pair of blackened, long, narrow, microscopically serrated lobes ( Fig. 75 View Figs 74–82 ). Gonocoxite totally divided to sternite nine by suture, base massive, apically terminating into two spines, outer one curved dorsally, inner one directed inwards ( Figs 74–77 View Figs 74–82 ). Outer gonostylus narrow and elongated, rounded apically ( Fig. 78 View Figs 74–82 ). Inner gonostylus elongated, dark in coloration, relatively narrow plate ( Fig. 78 View Figs 74–82 ), upper beak short, black and narrowed at tip, lower beak in shape of rounded lobe, dorsal crest with margin sloping ( Fig. 78 View Figs 74–82 ). Sternite nine broad, densely covered with setae on lateral surface, medially with massive membranous area strongly produced caudad in lateral view, appendage of sternite nine possessing ventral lobe broad, thumb-like, sparsely equipped with long setae, with dorsal lobe long and curved, broad basally, gradually narrowed to black sharp terminal, pointed inwards ( Figs 77, 79 View Figs 74–82 ). Adminiculum rounded apically with median sclerite oblong ( Fig. 77 View Figs 74–82 ). Semen pump with compressor apodeme fan-shaped, medially with deep V-shaped notch, distinctly longer than posterior immovable apodeme ( Fig. 80 View Figs 74–82 ). Posterior immovable apodeme with paired arms slightly curved dorsally, S-shaped, terminating into acute apex in lateral view ( Figs 81, 82 View Figs 74–82 ). Anterior immovable apodeme broad, rounded, flattened in dorsal view ( Fig. 82 View Figs 74–82 ). Aedeagus thick, almost same thickness, broad at apex, with small hook, aedeagus about 2.5 times longer than semen pump ( Fig. 82 View Figs 74–82 ).

Distribution. China: Yunnan (new country record). India: Meghalaya, West Bengal (Bඋඎඇൾඍඍං 1912, 1918; JඈඌൾඉH 1974).

Remark. The identification of this species is based on a dissected male from BMNH and dissected males from USNM (genitalia mounted on slides by C. P. Alexander) identified by F. W. Edwards and marked as “homotypes”. Alexander while describing the paratype female from Kurseong expressed doubt whether the specimen is conspecific with the holotype collected from Darjeeling, India (Aඅൾඑൺඇൽൾඋ 1942). JඈඌൾඉH (1974) when revising Brunetti’s types in the collection of the Zoological Survey of India, noticed that other paratypes (females) show some variations. Additional fresh material of females in copula is needed as comparative base for a proper revision of the female from the type series.