Male. Similar to female. The ., large facets of eyes hardly 

 reach the vertex, but attain the base of the frontal triangle. Antennae 

 have the third joint reddish. Wings with the dark colour less extend- 

 ed, leaving the apex quite clear. 



The male is not known to me. 



This handsome species is easily distinguished from any other 

 Japanese species of Tabanidae except the preceding species, by its brown 

 wings and its distinctly yellow pleurae, and from the fuscicornis it may 

 be known in the several minor points mentioned already. It varies a 

 little in the colouring of the thorax, abdominal bands or spots, and 

 wings, as described above ; the yellow pubescence on the thorax, is 

 not noted by Miss Ricardo, but I think that the type may be one of 

 nicely denuded specimens, as I have many of such materials which 

 quite agree with her co-type in the British Museum ; the golden yel- 

 low hairs on the middle femora vary in distinctness, those of the 

 specimens from Arisan being vary conspicuous, while those of the 

 materials from Banshorio are usually hardly existing. 



T. sauteri is an uncommon Formosa insect, though it can almost 

 always be found in small numbers in some localities of mountainous 

 districts (Taipin-July, Sokutsu-June, Banshorio-June, Fuhoshp-June, and 

 Arisan-June). 



I have taken the females on the road between bushes about 3 

 o'clock in the afternoon, and I have bitten by them several times, but 

 the effects were not very continuous. 



24. Tabanus sanguineus, Walker. (PL VII, fig. 6). . 



(Taiwan-shiro-sune-Abn). 



Ins. Saund., Dipt., I, p. 54, 1850. 



V. d. Wulp, Cat. Dipt. South Asia, p. 60, 1896. 

 Kertesz, Cat. Dipt., III. p. 277, 1908. 



