Simulium dentistylum Takaoka and Davies 1995

This species was described based on males, pupae, and mature larvae from West Malaysia (Takaoka and Davies 1995). The eight short, slender gill filaments are arranged in groups of 2 + 1 + 3 + 2 from dorsal to ventral. The larva is characterized by a deep postgenal cleft (Fig. 4 D); a marked constriction between abdominal segments IV and V; and both flat, scalelike setae and dark, unbranched or bifurcated setae on the cuticle of abdominal segment V (Fig. 2 C).

Two of three larvae were analyzed for major landmarks. None of the centromere regions are expanded. The bulge is near the ring of Balbiani in the middle of the IIS arm (Fig. 1 C).