A new species of Simulium (Gomphostilbia) (Diptera, Simuliidae) from Thailand, with a key to identify females of 14 species of the Simulium varicorne species-group
Document Type
Article
Publication Date
1-21-2022
Abstract
Simulium (Gomphostilbia) khelangense sp. nov. is described on the basis of females, collected by a sweeping net in Lampang, Phitsanulok and Chiang Mai Provinces, Thailand. This new species is placed in the S. chumpornense subgroup of the S. varicorne species-group in the subgenus Gomphostilbia Enderlein by having the antenna with eight flagellomeres, pleural membrane bare, and female subcosta lacking hairs. It is similar to S. kuvangkadilokae Pramual & Tangkawanit from Thailand in the same subgroup but is barely distinguished from the latter species by the head width relative to the greatest width of the frons and length of the labrum relative to the clypeus. A genetic analysis using the COI gene sequences similarly shows that S. khelangense sp. nov. is most closely related to S. kuvangkadilokae, with a genetic distance of 1.23-2.81%. A revised key to identify females of 14 species of the S. varicorne species-group is provided.
Keywords
Aquatic insects, Biodiversity, Blackflies, Sweeping net, Taxonomy
Divisions
tidrec
Funders
Ministry of Education, Malaysia, under the Higher Institution of Centre of Excellence (HICoE) niche area vector and vector-borne diseases [MO002-2019],Office of Research Administration, Chiang Mai University, Thailand
Publication Title
ZooKeys
Issue
1083
Publisher Location
12 PROF GEORGI ZLATARSKI ST, SOFIA, 1700, BULGARIA