A new species of Simulium (Asiosimulium) (Diptera: Simuliidae) from northeastern Thailand, with its phylogenetic relationships with related species in the subgenus Asiosimulium

Aupalee, Kittipat and Srisuka, Wichai and Taai, Kritsana and Takaoka, Hiroyuki and Saeung, Atiporn (2023) A new species of Simulium (Asiosimulium) (Diptera: Simuliidae) from northeastern Thailand, with its phylogenetic relationships with related species in the subgenus Asiosimulium. Journal of Medical Entomology, 60 (6). pp. 1330-1342. ISSN 0022-2585, DOI https://doi.org/10.1093/jme/tjad118.

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Abstract

Simulium (Asiosimulium) khongchiamense sp. nov. is described based on females, males, pupae, and mature larvae collected from Khong Chiam District, Ubon Ratchathani Province, northeastern Thailand. It is characterized in the female by the medium-long sensory vesicle, scutum with 3 dark longitudinal vittae and elongate cercus; in the male by the number of upper-eye (large) facets in 17 or 18 vertical rows and 18 or 19 horizontal rows, hind basitarsus moderately enlarged and ventral plate with the posterior margin moderately concave medially; in the pupa by the head and thoracic integument sparsely covered with tubercles and gill of arborescent type with 32 or 33 filaments; and in the larva by the postgenal cleft deep, reaching the posterior margin of the hypostoma and sheath of the subesophageal ganglion dark pigmented. DNA analysis based on COI gene of all known species of the subgenus Asiosimulium, except for S. shanense and S. suchitrae, indicated that this new species can be clearly differentiated from all other related species (S. phurueaense, S. oblongum, S. saeungae, S. furvum, and S. wanchaii) with interspecific genetic distances ranging between 4.79% and 19.18%. This is the eighth species of the subgenus Asiosimulium. Taxonomic notes are given to distinguish this new species from the 7 known species members in its same subgenus. Additionally, keys to species of all members in the subgenus Asiosimulium are provided.

Item Type: Article
Funders: None
Uncontrolled Keywords: Black fly; Diptera; Diversity; Insect; Ubon Ratchathani
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > Tropical Infectious Diseases Research and Education Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 11 Oct 2025 23:05
Last Modified: 11 Oct 2025 23:05
URI: http://eprints.um.edu.my/id/eprint/48146

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