title: Three new species of Simulium (Nevermannia) (Diptera: Simuliidae) from Vietnam.
abstract: Three new species of black flies, Simulium (Nevermannia) langbiangense, S. (N.) phami, and S. (N.) bachmaense, are described on the basis of females, males, pupae and larvae collected in Vietnam. All three species are assigned to the Simulium feuerborni species-group of Simulium (Nevermannia). Simulium (N.) langbiangense sp. nov. is characterized by the female sensory vesicle with a large opening, and a short common basal stalk of the six pupal gill filaments, S. (N.) phami sp. nov. is most striking in having the pupal gill with five filaments, a character not reported in species of the S. feuerborni species-group, and S. (N.) bachmaense sp. nov. is characterized by the female genital fork with a triangular lobe-like projection pointed posteromedially on each arm, and the small larval postgenal cleft. This represents the first record of the S. feuerborni species-group from Vietnam.
authors.affiliation: Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia; Email: takaoka@oita-u.ac.jp.
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Takaoka
authors.affiliation: Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia; Email: unknown.
authors.forename: Mohd
authors.initials: M
authors.lastname: Sofian-Azirun
authors.affiliation: Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia; Email: unknown.
authors.forename: Zubaidah
authors.initials: Z
authors.lastname: Ya'cob
authors.affiliation: Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia; Email: unknown.
authors.forename: Chee Dhang
authors.initials: CD
authors.lastname: Chen
authors.affiliation: Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia; Email: unknown.
authors.forename: Koon Weng
authors.initials: KW
authors.lastname: Lau
authors.affiliation: National Institute of Food Control, Ministry of Health, Hanoi, Vietnam; Email: unknown.
authors.forename: Xuan Da
authors.initials: XD
authors.lastname: Pham
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D049628:Body Size; D005260:Female; D007814:Larva / Q000033:anatomy & histology / Q000145:classification / Q000254:growth & development; D008297:Male; D009929:Organ Size; D011679:Pupa / Q000033:anatomy & histology / Q000145:classification / Q000254:growth & development; D012843:Simuliidae / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development; D014744:Vietnam