8. Simulium (Gomphostilbia) sofiani Takaoka & Hashim, 2011

Simulium (Gomphostilbia) sofiani: Takaoka et al., 2011a: 390 –398 (Female, male, pupa and larva).

This species was described from females, males, pupae and larvae (Takaoka et al., 2011a). It is characterized in the female by the elongate sensory vesicle, in the male by the number of upper-eye facets (15 or 16 vertical columns and 15 or 16 horizontal rows), the spindle-shaped hind basitarsus entirely darkened, and in the pupa by the long common basal stalk, which is longer than the interspiracular trunk, and small terminal hooks. An additional male reared from a pupa collected in Simpang Pulai shows the upper-eye large facets in 17 vertical columns and 17 horizontal rows.

The pupae and larvae were collected from a small stream at a high elevation (1,470 m) in Cameron Highlands.