iQii.] G. RiCARDO : Revision of the species of Tabanus. 241 



not narrowed at its apex. Length 12-13 mm., two specimens. 

 Coquillet, Proc. U. S. Nat. Mus., xxi, jit. 



This small species with shining subcallus is not known to me. 



Tabanus japonicus, 9 , Bigot. 



Mem. vSoc. Zool. France, v, p, 6j2 (1892). [Dichoelacera.\ 

 Ricardo, Ann. Mag. Nat. Hist. (7), xiv, p. 368 (1904). 

 iVntennae yellowish, the apex black ; palpi yellowish ; eyes 

 tomentose ; forehead grey, callus narrow, elongated, black ; 1)card 

 white; thorax and scutellum black, with scattered yellowish tomen- 

 tum, sides with 3'ellowish grey hairs, abdomen reddish yellow, the 

 base of the segments tinted with reddish brown, those of the last 

 ones blackish ; legs black, tibiae yellowish ; wings almost hyaline, 

 the outer border tinged pale 3-ellow, stigma pale reddish. 15 mm. 

 From Japan, one specimen. Bigot, Mem. Soc. Zool. France, v, 

 p. 632. I have not seen any specimens of this species, which ap- 

 parently has eyes liair\-. and ma^* possibly belong to the subgenus 

 Atylotus. 



Tabanus lama, $ , Portsch. 



Horae Soc. Kntom. Ross., xxvi, p. 201 {1891), pi. i, tig. i 

 (eyes). 



From Chinese Mongolia. 



(3blong, ovate, luteous. Eyes naked, ornamented with four 

 bands, the middle ones dark purple with red margins. Head with 

 white tomentum and hairs. Forehead grey, callus subquadrate, 

 black, shining. Antennae luteous, the third joint testaceous, at 

 apex darker. Palpi white and with white hairs. Thorax black, 

 white pruinose with four dark grey stripes. Scutellum black, white 

 or grey pruinose. Abdomen luteous, each segment in the middle 

 with a white triangular spot girdled on each side with an oblique 

 black line and with two small black side spots, under side and all legs 

 whoU}- luteous, all hairs of abdomen white or whitish, only the last 

 segment of abdomen at apex clothed with some black hairs. Wings 

 subhyaline, shining white, nervures pale ferruginous with a long 

 appendix. 4_^ — -6 mm. Portsch., Horae vSoc. Entom. Ross., xxvi, 

 p. 201. 



This s])ecies is not known to me. 



Tabanus pulchriventris, 9 , Portsch. (Therioplectcs.* 



Horae vSoc. Entom. Ross., xxi, p. 179 (1887). 



From Etschjin-Choro, Chinese Mongolia. 



In size, stature and colour of body this species is similar to 

 Tabanus tropicus, but is easily distinguished frc m it by the abdomen 

 being entirely and densely covered with long line red golden liurs, 

 brown palpi, etc. 



Black, with rather long i)ubescencc'. Head black, ashy grey 

 pruinose, underneath with white beard, round eyes with spare 

 black pubescence. Frontal stri])c rather wide, ashy grey, and with 

 black hairs on vertex. Frontal callus not large, subrotund, black. 



