Simulium yuphae Takaoka and Choochote, 2005 b

Simulium yuphae is distinguished by having larvae with an infuscated head-spot pattern on the cephalic apotome (Fig. 2 H); pupae with the ventral pair of gill filaments directed somewhat posteriorly, a pit-like organ near the gill base (Fig. 7 H), and microtubercles on the antennal sheaths; and females with an absence of clustered hairs on sternite VII. The median sclerite (Fig. 9 F) of the male resembles that of S. weji . The pit-like organ associated with the gill base in S. yuphae is presumably homoplasious with the pit-like organ in some species (e.g., described by Takaoka 2003) in the subgenus Morops.