612 MR. F. MOORE ON BENGALESE LEPIDOPTERA. [May 23, 



comparatively small whilst the animal is fed upon milk ; the young 

 Hippopotamus I dissected took a large quantity of this fluid, aud 

 hence probablj^ the small size of the first gastric cavity. Judging 

 from the form of the stomachs and the character of the villi, one 

 would almost infer that a certain amount of rumination takes place 

 in this animal. 



6. On the Lepidopterous Insects of Bengal. 

 By Frederic Moore. 



[Concluded from Proc. Zool. Soc. 1867, p. 98.] 



(Plates XXXII. & XXXIII.) 



Tribe Geometres. 



Fam. Urapteryd^, Guen. 



Genus Urapteryx, Leach. 



Urapteryx ebuleata, Guen. Phal. i. p. 32. 



U. MULTiSTRiGARiA, Walk. Cat. Lep. Het. B. M. xxxv. Suppl. 

 V. p. 1535. 



U. sciTicAUDARiA, "Walk. ib. xxvi. Geom. p. 1480. 

 Darjeeling. 



U. PODALiRiATA, Gueo. Phal. i. p. 32. 



U. MARGARITATA, n. Sp, 



Female pearly white ; costa slightly convex ; apex acute ; exterior 

 margin of fore wing obliquely straight ; exterior margin of hind wing 

 acutely angular and lobed in the middle : fore wing with two medial 

 transverse widely separated straight reddish hues, the inner line 

 crossing the hind wing and terminating upward on the abdominal 

 margin ; cilia and lobe-spot on hind wing reddish. Band on the 

 head and antennse reddish. 



Expanse If inch. 



Bengal. In Coll. A. E. Russell. 



U. TRIANGULARIA, n. Sp. 



Male &\\(!i female white, diaphanous ; costa convex, exterior margin 

 of both wings obliquely straight : hind wing much produced, extend- 

 ing to twice the length of the abdomen. Both wings with five trans- 

 verse cinereous lines, the four inner lines straight, the outer line wavy, 

 all proceeding to the anal angle. Cilia cinereous brown ; a black 

 exterior spot at anal angle. 



Expanse 1| inch. 



Bengal. In Coll. A. E. Russell : F. Moore. 



