Classification, annotated list and keys for the black flies (Diptera: Simuliidae) of Peninsular Malaysia Author Takaoka, Hiroyuki Author Ya’Cob, Zubaidah Author Sofian-Azirun, Mohd text Zootaxa 2018 2018-10-12 4498 1 1 65 journal article 29003 10.11646/zootaxa.4498.1.1 e3157d39-d48d-4df2-94a8-b097803e4342 1175-5326 1459138 334E786F-2793-4F10-909C-4ABBDA4075ED 32. Simulium ( Gomphostilbia ) langkawiense Takaoka, Sofian-Azirun & Ya’cob, 2012 Simulium ( Gomphostilbia ) langkawiense Takaoka et al ., 2013b : 702 –708 (Female, male, pupa and larva). This species was described from females, males, pupae and larvae collected from Langkawi Island ( Takaoka et al. , 2013b ). It is similar to S . gombakense but is distinguished from the latter species in the female by the claw tooth (0.46 times the length of the claw), in the male by the upper-eye large facets in 11 or 12 vertical columns and 12 or 13 horizontal rows on each side, in the pupa by the width of the middle inflated portion (0.24 times the length of the inflated structure), and in the larva by the posterior circlet with 96–100 rows of hooklts. The pupae and larvae were collected from small streams in Langkawi Island.