ME. A. G. BUTLER ON THE SPHINGLDiE. 547 



and laterally striped with white ; anterior segments and dorsal region sap-green, golden 

 green in front of each segment ; prolegs reddish ; spiracles orange ; the pupa is rather 

 pale, red-brown, with the pectus and wing-covers whity brown. 



Genus 4. Elibia, "Walker. 

 Elibia, Walker, Lep. Het. viii. p. 148. gen. 15 (1856). 



1. Elibia dolichus. 



Charocampa dolichus, Westwood, Cab. Orient. Ent. p. 61, pi. 30. fig. 1 (1848). 

 Elibia dolichus, Walker, Lep. Het. viii. p. 149. no. 1 (1856). 



Silhet (Sowerby, Doubleday). TyP e > B.M. 



2. Elibia dolichoides. 



Philampelus dolichoides, Felder, Reise der Nov., Lep. iv. tab. 7G. fig. 8 (Nov. 1874). 

 Pergesa dolichoides, Moore, P. Z. S. 1874, p. 577. 



Sikkim (Jerdon). Coll. F. Moore. 



This species has the same general pattern (with the exception of the whitish dorsal 

 line) as the Smerinthine Polyptychus dentatus. 



Genus 5. Pergesa, Walker. 

 Pergesa, Walker, Lep. Het. viii. p. 149. gen. 16 (1856). 



1. Pergesa porcellus. 



Sphinx porcellus, Linnaeus, Syst. Nat. i. 2, p. 801. no. 18 (1766). 



Theretra porcellus, Hubner, Verz. bek. Schmett. p. 135. no. 1448 (1816). 



Deilephila porcellus, Stepbens, 111. Brit. Ent. Haust. i. p. 131. no. 8 (1828). 



Charocampa porcellus, Westwood & Humphrey, Brit. Motbs, i. p. 23, pi. 23. figs. 9, 10 (1843-5). 



Pergesa jwrcellus , Walker, Lep. Het. viii. p. 150. no. 1 (1856). 



Sphinx bombyliformis, Linnaeus, Syst. Nat. ed. 10, p. 493. 



England (British Collection) ; Germany (Becker). B.M. 



2. Pergesa 1 acuta. 



Zonilia acuta, Walker, Lep. Het. viii. p. 195. no. 7 (1856). 



? Pergesa castor (part.), Walker, Lep. Het. viii. p. 153. no. 5 (1856). 



Silhet (Doubleday). B,Ml 



Our two examples of this species differ much from one another in detail ; but between 



them they perfectly answer (except in being rather larger) to Walker's description of Z. 



acuta. That his species is not a Zonilia I feel satisfied, not only from the name which 



he applies to it, but from the following points in his description :—" Abdomen with two 



