Tipula (Vestiplex) reposita Walker, 1848

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 : 357-359

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-FFB8-FD6C-F184-FDE5FB30D855
treatment provided by	Plazi
scientific name	Tipula (Vestiplex) reposita Walker, 1848
status

Treatment

Tipula (Vestiplex) reposita Walker, 1848 View in CoL

( Figs 83–95 View Figs 83–87 View Figs 88–95 )

Tipula reposita Walker, 1848: 67 View in CoL (original description).

Tipula reposita View in CoL : Eൽඐൺඋൽඌ (1926: 53).

Tipula (Vestiplex) reposita : Eൽඐൺඋൽඌ (1931: 80);Aඅൾඑൺඇൽൾඋ (1933: 518); Aඅൾඑൺඇൽൾඋ (1935a: 119); Aඅൾඑൺඇൽൾඋ (1963a: 23); Aඅൾඑൺඇൽൾඋ & Aඅൾඑൺඇൽൾඋ (1973: 64); JඈඌൾඉH (1974: 269); SඍൺඋKൾඏංർH et al.(2015: 122); PංඅංඉൾඇKඈ et al. (2019: 14).

Tipula (unplaced) reposita: ZH ൺඇG et al. (2020: 24).

Tipula brevis Brunetti, 1918: 270 View in CoL (original description). Synonymy after Eൽඐൺඋൽඌ (1924: 307).

Tipula (Vestiplex) brevis View in CoL : JඈඌൾඉH (1974: 269).

Tipula (Oreomyza) cladomera Alexander, 1936: 230 View in CoL . Synonymised by ZHൺඇG et al. (2020: 24).

Tipula cladomera View in CoL : SൺඏർHൾඇKඈ (1964: 485; as Tipula View in CoL incertae sedis); OඈඌඍൾඋൻඋඈൾK & THൾඈඐൺඅൽ (1992: 167; unplaced species of Tipula View in CoL ).

Type locality. Nepal.

Type material examined. Tipula (Vestiplex) reposita : Sඒඇඍඒඉൾ: ♀, Hardwicke Bequest / One of Walkers series so named. Edw / Tipula reposita , ♀ Walker (Type) ( BMNH; No. 246061).

Tipula cladomera : Hඈඅඈඍඒඉൾ: ♂, CHINA: SංർHඎൺඇ: Wan-hsien (= Chongqing: Wanzhou, viz ZHൺඇG et al. 2020), 1921. ix.1921 (antenna, leg, wing, parts of genitalia: gonocoxite, inner and outer gonostyli, adminiculum on slide) ( USNM).

Additional material examined. CHINA: Yඎඇඇൺඇ: 1 ♂, Zhanatong, Bingzhongluo, Gongshan County, 11.vi.2019, coll. Q. Men & L. Lv ( AQNU); CHINA: Yඎඇඇൺඇ: 1 ♂, Laomudeng, Fugong County, 19.vi.2019, leg. Q. Men & L. Lv ( AQNU).

Redescription. Male ( Figs 83–87 View Figs 83–87 ). Body length 10.4–10.6 mm (excluding antenna, n = 2), wing length 15.5–15.7 mm (n = 3), length of antenna 3.8–4.0 mm (n = 3).

Head. Generally yellowish-brown, vertex and occiput bright with brown linear mark ( Fig. 83 View Figs 83–87 ). Rostrum yellowish-brown, nasus yellow, narrow and elongated, slightly acute apically. Antenna 13-segmented, if bent backward almost reaching base of 2 nd abdominal segment. Scape, pedicel and first flagellomere yellow, all other flagellomeres yellowish brown with base darkened. Apical flagellomere ball-shaped. Flagellomeres except for first enlarged at base, with longest verticils slightly longer than corresponding flagellomeres. Whole flagellum densely covered with short and light setae. Palpus with basal three segments brown, slightly expanded apically, last segment darker in coloration, distinctly longer than basal three segments together.

Thorax. Pronotum yellowish-brown with some dark regions medially and laterally. Prescutum and presutural scutum yellowish-brown with four light brown stripes distinctly bordered by darker brown ( Fig. 84 View Figs 83–87 ). Median stripes separated in middle. Interspace between median and lateral stripes yellowish-brown, with light and short setae. Postsutural scutum yellowish-brown, each lobe with two brown triangular markings connecting to each other, between lobes with narrow brown vitta ( Fig. 84 View Figs 83–87 ). Scutellum yellowish-brown with dark median vitta ( Fig. 84 View Figs 83–87 ). Postnotum yellow with dark vitta. Pleuron entirely yellow ( Fig. 85 View Figs 83–87 ). Legs with coxae and trochanters yellowish-brown, femora yellowish-brown with tip black, tibiae yellowish- -brown with tip black, tarsi entirely black. Halter with stem yellow, knob black. Wing brown, with stigma dark brown, base of stigma with round bright spot; bright band extending backward, crossing apical aera of cell r 1, bases of cells r 3, r 4, r 5 and basal area of discal cell; other bright areas including base and apical areas of bm ( Fig. 86 View Figs 83–87 ). Venation: R 1 entire, R 2+3+4 slightly longer than R 3, R 4 of same length as Rs, R 5 curved in apical half, r-m two times longer than base of R 5, discal cell narrow, more than two times longer than petiole of cell m 1, cell m 1 more than 3.9 times longer than its petiole ( Fig. 86 View Figs 83–87 ).

Abdomen yellow with dark-brown lateral and median stripes. Median stripe interrupted on tergite three, getting broad toward tergite eight, lateral stripe broad ( Fig. 87 View Figs 83–87 ).

Hypopygium. Male hypopygium yellow. Hypopygium with tergite nine and sternite nine separated at apex, divided at midline by pale region ( Figs 88, 89 View Figs 88–95 ). Tergite nine rounded laterally, posterior border with deep V-shaped incision, sides of incision relatively straight, densely covered with setae, ends of incision terminating into small rounded lobes ( Fig. 88 View Figs 88–95 ). Gonocoxite small, triangular, apex with darkened short lobe, margin darkened towards mesal region ( Fig. 89 View Figs 88–95 ). Outer gonostylus in shape of large, yellow, flattened plate ( Figs 88–91 View Figs 88–95 ). Dorsal border serrated, marginally suffused with black, remarkably bifurcated by deep U-shaped notch. Inner gonostylus distinctly smaller than outer gonostylus, upper beak slender, lower beak obtuse, both beaks blackened, dorsal crest with margin nearly rectangular ( Figs 88–91 View Figs 88–95 ). Sternite nine broad, densely covered with setae on lateral surface, posterior border concave, appendage of sternite nine with ventral lobe rounded, densely equipped with long and thin setae ( Fig. 90 View Figs 88–95 ). Adminiculum broad basally with margin raised, narrowed to apex ( Fig. 90 View Figs 88–95 ). Sternite eight concave caudally, anterior border truncated with cone-shaped process medially, with row of very long setae along anterior border, longer than sternite eight ( Fig. 92 View Figs 88–95 ). Semen pump with compressor apodeme fan-shaped, medially with small V-shaped notch, slightly longer than posterior immovable apodeme ( Fig. 93 View Figs 88–95 ). Posterior immovable apodeme with paired arms slightly curved dorsally, broad, terminating into obtuse apex in lateral view ( Figs 94, 95 View Figs 88–95 ). Anterior immovable apodeme broad, flattened in dorsal view ( Fig. 95 View Figs 88–95 ). Aedeagus thick at base, gradually narrowed to apex, more than 7.5 times longer than semen pump ( Fig. 95 View Figs 88–95 ).

Female. Generally similar to male in body coloration.

Female terminalia. Tergites nine and ten shining brown. Cercus brown, with tip narrowed and curved dorsally, ventral margin with rough serration, serration on dorsal margin indistinct ( Fig. 96 View Fig 96 ). Hypovalva short, strongly reduced, terminating in two narrowed pale plates, acute apically.

Distribution. China: Chongqing (Aඅൾඑൺඇൽൾඋ 1936, ZHൺඇG et al. 2020), Yunnan (new record), India: Meghalaya (Bඋඎඇൾඍඍං 1918), Laos (ZHൺඇG et al. 2020), Nepal (WൺඅKൾඋ 1848), Thailand: Chiang Mai (SඍൺඋKൾඏංർH et al. 2015), Vietnam (Eൽඐൺඋൽඌ 1926).

Remark. The species is easily recognized by remarkable, large bifurcated outer gonostylus, whose unusual shape was highlighted by Aඅൾඑൺඇൽൾඋ (1936).

According to ZHൺඇG et al. (2020), the placement of Tipula reposita in the subgenus Vestiplex is incorrect because of the unique male genital complex. However, the relationship with other Vestiplex species was previously discussed in PංඅංඉൾඇKඈ et al. (2019) based on the male genitalia. The typical female terminalia with powerfully constructed and serrated cerci ( Fig. 96 View Fig 96 ) support the assignment of T. reposita as a member of the subgens Vestiplex .