370 Records of the Indian Musemii. [Vol. IV , 



The other references are merely copies of the original descrip- 

 tions, the insect apparently not being known to the authors. It 

 is unknown to me. 



GASTROXIDES, Saunders. 



Trans. Entom. Soc. London, iii, p. 59 (1841). 



Ditylomyia, Bigot, Rev. et Mag. Zool. (2), xi, p. 305 (1859). 



This last genus was formed for one species from Ceylon, which, 

 however, on examination proves to be a specimen of Gastroxides , 

 Saunders, a genus in the division Pangoninae : see Ricardo, Ann. 

 Mag. Nat. Hist. (7), viii, pp. 289, 297 (1901). {G. ater, $ , 

 Saunders, Ic, pi. v, fig. 4 ; cf , Saunders, /.c, etc., should read 

 thus, not as printed on page 298.) 



Ricardo, Ann. Mag. Nat. Hist. (7), xiv, p. 372. 



Gastroxides ater, & 9 , Saunders. 

 (Plate xvi, fig. 9.) 



Trans. Ent. Soc. London, iii, p, 59, pi. v, fig. 4, 9 (1841) ; 

 et iv, p. 23, pi. xiv, fig. 3, 0' (1847) ; Loew, Dipt. Siidafrik , p. 15 

 (i860); Ricardo, Ann. Mag. Nat. Hist. (7), viii, p. 298 (1901) ; 

 et (7), xiv, p. 372 (1904)- 



Head transverse, with three ocelli placed in an equilateral 

 triangle on vertex; proboscis straight, inclined downwards, about 

 as long as the head. Antennae rather longer than the head, three- 

 jointed : first joint cylindrical, twice as long as the second, which 

 is longer than broad ; third joint a little longer than the two first, 

 with four distinct rings dividing the joint into five divisions, the 

 first of which is as long as the four following, and produced at the 

 bases on the superior part into an acute spine pointing forwards, 

 the four last divisions equal in length. Thorax oval, rather 

 broader than the head. Abdomen seven-jointed, ovato-conical, 

 terminating in an acute point. Legs long and slender. 



9. Coal-black, hairy; the wings of a black-brown, with a 

 yellowish irregularly oval spot crossing the middle of the disk, 

 and a smaller spot of the same nature towards the apex. Expan- 

 sion I inch, length ^ inch. From Central India. In my own col- 

 lection. 



Obs. — This genus approaches nearest to Tabainis but dift'ers 

 in having ocelli, in the antennae, and in the shape of abdomen. Its 

 approach to other genera of the family Tabanidae is also evident, 

 but it differs from all the genera I am acquainted with, and there- 

 fore I have made it the type of a new sub-genus under the name 

 of Gastroxides, in allusion to the shape of the abdomen, which is 

 unusual in the family to which the insect belongs. Saunders , Trans. 

 Ent. Soc. London, iii, p. 59. 



cf . Differs from the female in having the second joint of the 

 abdomen rufous, and the eyes large and contiguous vertically. 



