Discovery of a new black fly species in the Simulium (Simulium) striatum species-group (Diptera: Simuliidae) from Northeastern Thailand and its phylogenetic relationships with seven Thai related species

Srisuka, Wichai and Takaoka, Hiroyuki and Aupalee, Kittipat and Saeung, Atiporn (2023) Discovery of a new black fly species in the Simulium (Simulium) striatum species-group (Diptera: Simuliidae) from Northeastern Thailand and its phylogenetic relationships with seven Thai related species. Acta Tropica, 238. ISSN 0001-706X, DOI https://doi.org/10.1016/j.actatropica.2022.106790.

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Abstract

The female, male, pupa and mature larva of Simulium (Simulium) poolpholi sp. nov. collected from a large and seasonal stream in northeastern Thailand are described. This new species is placed in the S. striatum species -group by the female sternite 8 concave posteromedially in form of the inverted-U shape, ovipositor valve with a ventrally produced process along its inner margin, male ventral plate saddle-shaped, style with a basal pro-tuberance, and pupal gill with 10 filaments. It is morphologically similar to S. (S.) phraense Takaoka, Srisuka & Saeung from northern Thailand by lacking annular ridges on the surface of pupal gill filaments but it is distin-guished from the latter species by the arrangement of pupal gill filaments. Molecular analysis using the fast-evolving nuclear big zinc finger (BZF) gene shows that S. (S.) poolpholi sp. nov. formed a distinct clade, being separated from the seven other Thai species of this species-group by a genetic distance of 1.84-4.55%. Our discovery increases the number of species in the S. striatum species-group in Thailand to nine.

Item Type: Article
Funders: Ministry of Education, Malaysia, under the Higher Institution centre of Excellence (HICoE) niche area vector and vector -borne diseases
Uncontrolled Keywords: Aquatic insects; Biting fly; Fast-evolving nuclear big zinc finger (BZF); gene; Genetic analysis; Biodiversity
Subjects: R Medicine > R Medicine (General)
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > Tropical Infectious Diseases Research and Education Centre
Depositing User: Ms Zaharah Ramly
Date Deposited: 27 Nov 2023 07:22
Last Modified: 27 Nov 2023 07:22
URI: http://eprints.um.edu.my/id/eprint/38741

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