Morphological revision of Simulium (Gomphostilbia) ogatai (Rubtsov) in the S. ceylonicum species-group (Diptera: Simuliidae) from Japan

Takaoka, H. and Otsuka, Y. and Fukuda, M. and Low, Van Lun and Ya'cob, Zubaidah (2022) Morphological revision of Simulium (Gomphostilbia) ogatai (Rubtsov) in the S. ceylonicum species-group (Diptera: Simuliidae) from Japan. Tropical Biomedicine, 39 (2). pp. 231-238. ISSN 0127-5720, DOI https://doi.org/10.47665/tb.39.2.012.

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Abstract

Simulium (Gomphostilbia) ogatai (Rubtsov) from Japan, the only Palaearctic species in the S. ceylonicum species-group, is morphologically revised. Its female is described for the first time and its male and pupa are redescribed based on specimens from Gifu, Honshu. It is characterized in the female and male by the base of the radius with a tuft of yellow hairs, in the female by the head slightly wider than the thorax, 5.89 times as wide as the greatest width of the frons, and short sensory vesicle 0.21???0.24 times as long as the third palpal segment; in the male by the number of upper-eye (large) facets in 15 vertical columns and 16 horizontal rows, and hind basitarsus spindle-shaped, enlarged, 3.79 times as long as wide, and 0.83 and 1.00 times as wide as the greatest width of the hind tibia and femur, respectively; and in the pupa by the terminal hooks simple and cone-like, and the cocoon with an anterodorsal projection. Taxonomic notes for this species are given relevant to several related species in the Oriental Region, and its assignment to the S. ceylonicum species-group is confirmed.

Item Type: Article
Funders: Ministry of Higher Education, Malaysia, under the Higher Institution Centre of Excellence (HICoE) (Grant No: MO002-2019)
Uncontrolled Keywords: Black fly; Taxonomy; Biting insects
Subjects: Q Science > QL Zoology
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > Tropical Infectious Diseases Research and Education Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 26 Oct 2023 07:03
Last Modified: 26 Oct 2023 07:03
URI: http://eprints.um.edu.my/id/eprint/41710

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