iqii.] G- RiCARDO : Revision of the species of Tabanus. 193 



Abdomen black, the posterior segments with white bands, 

 which are a little dilated in the middle of dorsum ; under side with 

 four white bands. Legs wholly black. Rondani, Ann. Mus. Civ. 

 Geneva, vii, p. 455. 



Type female and another from Sarawak seen by me in Nat. 

 Hist. Museum, Genoa. No specimens are present in the collections 

 named in this paper, l)ut an easily identified s])ecies. 



Blackish with white-haired bands on abdomen, legs and 

 antennae black. Length 17 mm. 



Face grey with white pubescence. Palpi yellow, with thick 

 black pubescence. Antennae now incomplete, the first joint with 

 black pubescence. The frontal callus long on the narrow forehead, 

 with a short linear extension. Forehead quite seven times as long 

 as it is wide and nearly two-thirds narrower anteriorly. Subcallus 

 with grey tomentum. Thorax blackish brown with gre}^ tomentum, 

 and very indistinct stripes. Scutelluin brown with grey tomentum. 

 Abdomen rather long and narrow, the first segment broadly whitish 

 grey tomentose, second, third, fourth with whitish grey haired 

 narrow bands enlarged in the middle, the fifth and sixth with white- 

 haired median spots, colour of abdomen blackish brown with black 

 pubescence ; under side similar. Legs brownish black, the pubes- 

 cence black. Wings deeply tinged with brown, the discal, second 

 basal cell and apex almost clear, appendix present. 



Tabanus khasiensis, 9 , Ricardo. 



Ann. Alag. Nat. Hist. (8), iii, p. 487 (1909). 



Type 9 and two other females from Khasi Hills, Assam, 

 r ,000 — 3,000 ft. One female from Meerut (Indian Museum coll.). 



A black medium-sized species with white bands on the abdo- 

 men. Antennae, palpi and legs blackish. Wings hyaline, tinged 

 with l)rown. Length 15-16 mm. 



Nearly allied to Tabanus justorius, Rondani, from Borneo 

 but distinguished by the more hyaline wings, by the forehead being 

 the same width throughout, and by the darker palpi. 



Face covered with gre^-ish tomentum in the middle, on the 

 cheeks and subcallus with yellowish brown tomentum, the pubes- 

 cence black. Beard black. Palpi on outside appearing blackish 

 covered with grey tomentum and with black pubescence, on the 

 inside obscure reddish yellow, long and pointed, stouter at base. 

 Antennae dull reddish black or black, the first two joints with grey 

 tomentum and black pubescence, the tooth of third joint small. 

 Forehead same colour as subcallus, the same width throughout, 

 with a few black hairs, nearly seven times as long as it is broad ; 

 the frontal callus oblong, narrow, brown, not reaching the eyes, 

 furrowed in the middle, with a long narrow linear extension. 

 Thorax, sctitelluni and abdomen brownish black, the former with grey 

 tomentum and traces of two stripes, the pubescence l)lack, a few 

 api)ressed white hairs anteriorly ; sides with black hairs, a tuft 

 of white hairs behind the base of wings ; l)ri'ast black with grey 



