1887.] E. T. Atkinson — Notes on Indian Rhyucliota. 173 



their exterior margin yellow towards the base ; membrane and 

 wings fnscous-black. Feet pubescent ; coxaa, trochanters and femora, 

 red, the femora cyaneous at apex, tibiae with a small groove before 

 apex, cyaneous ; tarsi-black : venter moderately convex with the 

 sides punctured, shining, yellow, margin above the black stigmata red or 

 luteous, a large quadrate spot occupying the middle of the three anterior 

 segments and another rounded on penultimate segment, black or fus- 

 cous ; 2-5 segments with a brassy-green spot on each side : anal seg- 

 ment horizontal, senescent, thrice broader than length, deeply transverse- 

 ly impressed, the apex broadly emarginate. 



$ . The ? has the antennae more slender, shorter than head and 

 pronotum, two basal joints longer than the eyes, 3-5 joints with small 

 obsolete grooves : sides of pronotum more narrowly margined before 

 the eyes, margin not dilated in the middle : anal segment of venter 

 deep red (Schiodte). Long, 7^-8 mill., humeral breadth, 4f mill. 



The discoidal spot in the scutellum is broader than in G. elatusy 

 Stal, gradually amplified forwards before the middle : genitalia in d' 

 more reflexed behind the middle than usual : subapical rounded spot 

 in the scutellum black. 



Reported from Bengal, Tranquebar : the Indian museum has spe- 

 cimens from Calcutta and Ceylon. 



c? . Antennae a little longer than the head and pronotum together, 

 stoutish ; two basal joints much shorter than the head, scarcely as long 

 as the eyes, either black, or fuscous, or rufescent ; second joint very 

 short, one-fourth the length of the basal ; remaining joints black, pubes- 

 cent, almost of the same length, depressed, with a small groove on the 

 upperside ; third thrice as long as the basal, fourth and fifth with a 

 deep groove on the lower side. Head deflexed much shorter than broad, 

 obtusely three-angled, and a little convex, smooth, shining, coerulean 

 greenish or cyanean ; clypeus obscurely cyaneous, at the extreme apex 

 ruddy ; eyes of moderate size, prominent ; clypeus linear, obtusely pro- 

 minulous at apex ; margins of the rostral groove, narrowly elevated : 

 rostrum reaching the base of the abdomen subcylindrical, piceous, 

 rufescent at base, second joint a little longer than the rest. Pro- 

 notum broader than long, convex at the base, as high as the scutel- 

 lum, more sparingly punctured, denser towards the somewhat ele- 

 vated humeri, anteriorly convexly sloped, smooth, within the apex 

 depressed and rather densely punctured ; entirely brassy-green or shin- 

 ing cyaneous, sometimes purpurascent at the sides, with three longitu- 

 dinal rows of black spots of which the median row is composed of two 

 large quadrate spots and the lateral rows of three smaller, rounded 

 spots : the humeral protuberances are also black and the lateral margins 



