31G Mr. L. B. Prout 07i 



closely allied as to be most doubtfully separable from each 

 other. But Taveta is almost exactly halfway between their 

 respective localities, so that the occurrence of a special form 

 there would seem to indicate that hapiti may possibly be 

 really different from emini. 



No lio-ht is thrown by the present series on the identification 

 of the two forms collected by Speke— //. albifrons ^nd pallt- 

 dus, Gray, — both based on young- specimens ; the former with 

 a large white frontal spot, and the latter of a peculiar pale 

 and possibly albinistic colour. The structure of their palates 

 is quite as in enmii and Icapiti, but their nasals, which are 

 like each other, differ somewhat in form and extent from 

 those of the more recently described species. 



34. Lepus crawshay'i^ de Wint. 

 ? . 1017 (young), 1107. Taveta. 



XXXVII. — Neiv Neotropical Geometridse. 

 By Louis B. Prout, F.E.S. 



[Continued from p. 247.] 



Cambogia bitceniaia, sp. n. 



(J. 28 mm. — Face and palpus yellow-brown ; vertex and 

 shaft of antenna snow-white ; head, thorax, and abdomen 

 dull yellow. Fore wing and hind wing pale lemon-yellow, 

 with all the markings weak and shadowy ; hind wing with a 

 broad pearl-grey median and marginal band and a slight 

 patch at base ; fore wing M'ith the marginal band only, the 

 median only reaching M'^, the whole of the wing above 

 being suffused with pearl-grey, except a yellow patch beyond 

 cell before the marginal grey band ; a distinct black cell- 

 spot in fore wing, none in hind wing ; fringes yellow. 

 IJnderside altogether duller; the pearl-grey areas replaced 

 by dull rosy, the median band in both wings nearly obsolete. 

 * Pavas, West Colombia, 4400 feet, March 1908 ; one (5* . 



Perhaps nearest to C. marcescaria, Guen. 



Cambogia borratoides, sp. n. 



J . S6 mm. — Differs from C. borrata, Dogn. Ann. Soc. 

 Ent. Belg. xxxvii. p. 84, in having the dark costal streak of 

 fore wing narrower and no basal line on hind wing; marked, 



