118 MR. A. G. BUTLER ON THE GENUS BRAHM^A. [Feb. 27, 



*31. Difhylla. Tail none. Premolars 0/1 (Peters), or 1/1 

 (Gervais). D. ecaudata. 



Section II. Nostrils in the concavities of a small disk, with 'promi- 

 nent side edges. The face with symmetrical erect cartilagi- 

 nous ridges. Interfemoral membrane marginal. Tail none. 

 Ears with an expanded lobe on each side, hooding the face. 



Tribe 10. Centurionina. Face with a small flat nasal disk, lobed 

 on the sides, having an erect sinuous process behind it, and with 

 a crescent-shaped palate on the forehead in front of a frontal 

 pore. Tragus small, distorted. Middle finger four-jointed. 

 Chin with transverse ridges. 



"to" 



32. Centurio. Chin with three transverse elevated leathery 

 bands, the lowest one largest and covered with hair. C. senex. 



*33. Trichocorytes. "Chin with five transverse elevated bands; 

 the two front ones smaller, and placed in front of the three former 

 in Centurio.'" T. macmurtrii. 



3. Note on the Genus Brahmcea of Walker. 

 By Arthur G. Butler, F.Z.S. 



In laying before the Society the result of my investigations with 

 regard to these figures, which were prepared for Mr. Adam White, 

 formerly Assistant in the Zoological Department of the British Mu- 

 seum, and intended to illustrate a paper in the Society's ' Proceed- 

 ings,' I wish it to be thoroughly understood that I have seen none 

 of the specimens from which they were taken, and that I am there- 

 fore compelled to depend upon the drawings alone for the descrip- 

 tions of the species. There are two examples of the old species B. 

 certhia in the National Collection. 



Genus Brahmcea, Walker. 

 Section 1. 



1. Brahm^a certhia. (Fig. 1.) 



Bombyx certhia, Fabricius, Ent. Syst. hi. 1. p. 412 (1/97). 



Brahmcea certhia, Walker, List Lep. Het. Brit. Mus. pt. vi. p. 1316 

 (1835); F. Moore, Cat. Lep. Mus. East Ind. Comp. ii. p. 410. 

 desc. 932 (1858-9). 



Bombyx wallichii, J. E. Gray, Zool. Misc. p. 39 (1832). 



Bombyx spectabilis, Hope, Trans. Linn. Soc. xviii. p. 443, pi. 31. 

 f. 3(1841). 



Hab. Sylhet; Nepal (Moore). B.M. 



