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A new black fly species of Simulium (Gomphostilbia) (Diptera: Simuliidae) from Taiwan, with keys to all 13 species of the Simulium varicorne species-group



Simulium (Gomphostilbia) huangi sp. nov. is described from female, male, pupal and larval specimens collected from Taiwan. This new species is placed in the Simulium burtoni subgroup of the Simulium varicorne species-group of the subgenus Gomphostilbia, one of the two largest subgenera of the genus Simulium in the Oriental Region. This species also represents a new record of the S. varicorne species-group from Taiwan. It is characterized in the adults by the antenna with eight flagellomeres almost uniformly darkened, in the pupa by gill filaments arranged as [(1+2) +(1+2)] + 2, and a pair of terminal hooks much widened, each with a serrated outer margin, and in the larva by the medium-long postgenal cleft. Taxonomic notes to distinguish this new species from four other known species of the S. burtoni subgroup from other countries are provided. Revised keys to all the 13 species of the S. varicorne species-group are given.



Diptera, Black fly, Simulium, Gomphostilbia, new species, Taiwan

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