Simulium yuphae Takaoka and Choochote, 2005

Tangkawanit, Ubon, Kuvangkadilok, Chaliow, Baimai, Visut & Adler, Peter H., 2009, Morphotaxonomy of the Simulium (Simulium) tuberosum species group (Diptera: Simuliidae) in Thailand, Zootaxa 2048, pp. 31-46 : 39

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.

Figures

FIGURE 2. Head capsules of mature larvae of Simulium tuberosum group from Thailand. A, S. doipuiense cytoform A. B, S. doipuiense cytoform B. C, S. manooni. D, S. rufibasis. E, S. setsukoae. F, S. tani cytoform D. G, S. weji. H, S. yuphae. I, Unknown species 2. Scale bars = 0.5 mm.

FIGURE 7. Gill filaments of Simulium tuberosum group from Thailand. A, S. doipuiense cytoform A. B, S. manooni. C, S. rufibasis. D, S. setsukoae. E, S. tani cytoform F. F, S. tani cytoform H. G, S. weji. H, S. yuphae. Arrow indicates pit-like organ.

FIGURE 9. Median sclerites of males of Simulium tuberosum group from Thailand. A, S. doipuiense cytoform A. B, S. rufibasis. C, S. setsukoae. D, S. tani complex. E, S. weji. F, S. yuphae. Scale bars = 0.05 mm.