224 Records of the Indian Museum. [Vol. IV, 



the knees and tibiae white-yellow, as well as the metatarsi of the 

 middle and posterior legs, and to a certain extent the succeeding 

 tarsal joints. Wings wholly hyaline, the subcostal vein pale 3'ellow 

 and similarly shaded, the first posterior cell open, no appendix, but 

 the angle is acute, 6 lines. 



Two females from Ceylon. 



A species deviating very much from all Tnhanus species, and 

 which might be considered as the type of a definite group of species. 

 vSchiner, Reise No vara Dipt., p. 9]. 



The Bigot specimen agrees with above description and is no 

 doubt the same. The species is easily recognised by its shining 

 subcallus, black beard and palpi, black le^s with white tibiae and 

 almost clear wings, but the abdomen varies from wholly black to 

 almost wholly brown-red, as in the specimens from vSumatra in 

 which only the last four segments or only the apex are blackish, 

 it is always shining but in undenuded specimens with unnoticeable 

 short black pubescence. The thorax is blackish, sometimes with the 

 shoulders and sides reddish, appressed fulvous pubescence appears 

 on fresh specimens , but not in the wholly black specimens , sides with 

 black hairs. 



9 . The face is black covered with cinnamon-brown tomentum , 

 the palpi always blackish, though yellowish on the inside. The 

 antennae are rather narrow and slender, the third joint especially 

 so, the first two joints have black pubescence which is thickest on their 

 upper angles. The forehead is narrow, about eight times as long 

 as it is broad, from a third to half narrower anteriorl}^, the frontal 

 callus sometimes long and narrow^ not square, but always reaching 

 the e3^es, linear extension not usually reaching the vertex. Forehead 

 covered with the bluish grey tomentum, but posteriorly with 

 darker brown tomentum and with black hairs. The eyes have two 

 more cross-bands. The fore tibiae are black at their extreme apex. 

 Wings with ^xllow veins and stigma and costal border. Length of 

 Bigot type 12 mm., of others 10 — 12 mm. 



cf . The male is similar to the female. The hairs on the face 

 are much thicker and very black, as is the beard and the hairs on 

 the palpi. Subcallus black, shining. Eyes with the large facets 

 very distinct, reaching across, just beyond the apex of the frontal 

 triangle, the small facets are continued as a narrow border to the 

 vertex. The abdomen in this one specimen is reddish brown, black 

 at the apex. Length io|^ mm. On the relationship of this species 

 to Tabanus simplissimns , Wlk., see under that species. 



Tabanus ardens, 9 , Wiedemann. 



Dipt, exot., i, 78, 31 (1821); id., Auss. Zweifl. Ins., i, p. 154, 

 68 (1828). 



Macquart, Dipt, exot., i (i), p. 129, 16 (1838). 



Thorax glauco, fulvo pubescente ; abdomine ferrugineo ; alis 

 infumatis ; pedibus fulvis. Thorax mouldy grey with golden yellow 

 pubescence. Abdomen rusty yellow. Wings smoke-grey. Legs 

 golden yellow, 6 lines. 9 . From Java. 



