Cheilosia distincta Barkalov & Cheng, 1998

Barkalov, Anatolij V. & Ståhls, Gunilla, 2022, Cheilosia (Diptera, Syrphidae: Rhingiini) of Nepal with descriptions of 29 new species, European Journal of Taxonomy 829 (1), pp. 1-127 : 34-37

Cheilosia distincta Barkalov & Cheng, 1998

Figs 15–16

Cheilosia (Montanocheila) distincta Barkalov & Cheng, 1998: 313 . Type locality: China: Sichuan: Xiangcheng (holotype, ♂, ZICAS).

Cheilosia (Montanocheila) distincta – Barkalov & Cheng 2004: 297.

Differential diagnosis

Cheilosia (M.) distincta is among the Nepalese species closest to C. (M.) erratica . Cheilosia erratica differs by having tergite III entirely yellowish pilose, while C. distincta has tergite III black pilose.

Material examined

NEPAL • 1 ♂; Solukhumbu, Shibuche ; 27°34′ N, 86°46′ E; 2700– 2300 m a.s.l.; 18 May 1997; M. Hauser leg. [524]; CSCA • 1 ♀; Ramechap Mohabir Khola E of Shivalaya; 2500–2600 m a.s.l.; 27°35′ N, 86°19′ E; 6–7 May 97; Hauser leg.; CSCA • 1 ♀; Westnepal, Distr. Humla, Simikot , 12 km S of Raya; 29°52′29″ N, 81°51′57″ E; 2400 m a.s.l.; 8 Jul. 2001; F. Creutzburg leg.; IBSJW / NME • 3 ♀♀; Kathmandu S, Phulchoki ; 27°35′09″ N, 85°22′50″ E; ca 1800 m a.s.l.; 18 Jul. 2001; F. Creutzburg leg.; IBSJW / NME • 1 ♀; Prov. Karnali, Gothigaon, Flussufer ; 29°14.55′ N, 82°18.48′ E; 2600 m a.s.l.; 14 Jun. 1997; J. Weipert leg.; IBSJW / NME .

Taxonomic remark

The description of Cheilosia (M.) distincta Barkalov & Cheng, 1998 agrees with the description of Cheilosia hirticincta Brunetti, 1915 in almost all described characteristics. The studied specimens from Nepal, one male and six females, have basoflagellomere reddish-brown with light greyish dusting and blackish dorsal margin (described as black with greyish dusting in Cheilosia distincta and C. hirticincta ). The NHM (London) has six male specimens identified as Cheilosia hirticincta Brunetti. The structure of the male genitalia of Cheilosia (M.) distincta and C. hirticincta is very similar. However, we have not been able to locate and study the type material of C. hirticincta to evaluate a possible synonymy of C. distincta .

Distribution

China, Nepal.

Figures

Fig. 15. Cheilosia (Montanocheila) distincta Barkalov & Cheng, 1998. A. Head of ♂, lateral view. B. Head of ♀, dorsal view. C. Antenna of ♂, lateral view of pedicel and basoflagellomere. D. Antenna of ♀, lateral view of pedicel and basoflagellomere. E. Superior lobe of hypandrium, lateral view. F. Surstylus and gonocercus, lateral view. G. Aedeagus and aedeagal apodeme, lateral view. After Barkalov & Cheng 1998. Scale bars indicated in drawings.

Fig. 16. Cheilosia (Montanocheila) distincta Barkalov & Cheng, 1998. A–B. ♂ (CSCA); dorsal and lateral views. C. ♀ (IBSJW/NME); dorsal and lateral view. Not to scale.