Simulium (Simulium) nodosum Puri, 1933

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 : 117

Simulium (Simulium) nodosum Puri, 1933

Simulium (Simulium) nodosum Puri. 1933b: 813 –817 (Female, pupa and larva); Lewis, 1974: 34 –37 (Female, male, pupa and larva).

Specimens examined. Two males (reared from pupae) and five mature larvae, collected from a slow-flowing stream (width 1.5–3.0 m, depth 10–15 cm, bottom sandy, water temperature 18.0˚C, exposed to the sun, elevation 73 m, 19˚30’45.497”N/105˚09’09.261”E), Chau Dinh , Quy Chau, Nghe An Province, northern Vietnam, 11-XII- 2015, by H. Takaoka, M. Sofian-Azirun, C.D. Chen & K.W. Lau.

Distribution. India, Thailand, Taiwan, South China, Vietnam (Ha Tay, Hoa Binh, Vinh Phuc, Lam Dong and Nghe An).

Remarks. Simulium (S.) nodosum was originally described by Puri (1933b) and redescribed by Lewis (1974). It was recorded from Vietnam by Crosskey and Howard (1997) and Pham (1998). The females of this species were reported to be a human-biter and to transmit an Onchocerca species in Thailand (Takaoka et al. 2003).