ME. A. G. BUTLER ON THE SPHINGIDJE. 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. 



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

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



Silhet {Sotoerby, Doubleday). Type, B.M. 



2. Elibia dolichoides. 



Philampelus dolichoides. Folder, Reise der Nov., Lep. iv. tab. 76. fig. 8 (Nov. 1874). 

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



Sikkim (Jerclon). 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. Pekgesa, Walker. 

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



1. Pekgesa poecellus. 



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



Theretra porcellus , Hiibner, Verz. bek. Sckmett. p. 135. no. 1448 (1816). 



Deilephila porcellus, Stephens, lU. Brit. Ent. Haust. i. p. 131. no. 8 (1828). 



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



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



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



'Eia^'axiA {British Collection) ; Geima.ny (JBecker). B.M. 



2. Pergesa 1 acuta. 



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



? Pe^-gesa castor (part.), Walker, Lep. Het. viii. p. 153. no. 5 (1856) . 



Silhet {Bouhleday). B.M. 



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, n6t only from the name which 

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



