Simulium (Gomphostilbia) confertum Takaoka & Sofian-Azirun, 2015

Takaoka, Hiroyuki, Sofian-Azirun, Mohd, Ya’Cob, Zubaidah, Chen, Chee Dhang, Lau, Koon Weng, Low, Van Lun, Pham, Xuan Da & Adler, Peter H., 2017, The black flies (Diptera: Simuliidae) of Vietnam, Zootaxa 4261 (1), pp. 1-165 : 26

Simulium (Gomphostilbia) confertum Takaoka & Sofian-Azirun, 2015

Simulium (Gomphostilbia) confertum Takaoka & Sofian-Azirun (in Takaoka et al., 2015a) : 7–13 (Female, male and pupa).

Specimens examined. Four males, reared from pupae collected from a moderately flowing stream (width 1.0 m, depth 7 cm, bottom muddy, water temperature 13.0˚C, exposed to the sun, elevation 1,223 m, 22˚19’04.333”N/ 103˚52’04.265”E), Lao Chai, Sapa , Lao Cai Province, 21-XII-2014, by H. Takaoka, M. Sofian-Azirun, Z. Ya’cob, C.D. Chen & K.W. Lau.

Distribution. Vietnam (Lam Dong and Lao Cai).

Remarks. This species was described from Lam Dong Province in southern Vietnam ( Takaoka et al. 2015a). The males of this species collected from Sapa, Lao Cai Province in northern Vietnam have the subcosta with many hairs except near the apex which is bare, differing from the male from Lam Dong ( Takaoka et al. 2015a).