548 MR. A. G. BUTLER ON THE SPIIINGID^. 



dorsal rows of black dots. Fore wings glaucous along the exterior border, and with sev- 

 eral oblique rows of black dots. Hind wings brown, with an incomplete tawny stripe." 



3. Pebgesa acteus. 



Sphinx acteus, Cramer, Pap. Exot. iii. p. 93, pi. 248. fig. A (1782). 

 Oreus acteus, Hiibner, Verz. bek. Schmett. p. 136. no. 1464 (1816). 

 Pergesa acteus, Walker, Lep. Het. viii. p. 153. no. 6 (1856). 



Silhet (Stainsforth) ; North India (James); East India, Bengal, Moulmein (Clerck); 

 Ceylon (Templeton) ; Borneo (Lowe) ; Java (Horsfield). B.M. 



4. Pergesa irregularis. 



Pergesa irregularis, Walker, Lep. Het. viii. p. 152. no. 4 (1856). 

 West Africa (Doubleday). Type, B.M. 



5. Pergesa velata. 



Pergesa velata, Walker, Lep. Het. Suppl. v. p. 1853 (1866). 



? Pergesa castor, Moore (nee Walker), Cat. Lep. E.I. Comp. i. p. 273. no. 630 (1857). 



Darjeeling (Russell). Type, B.M. 



Mr. Moore has an example from the North-west Himalayas. 



6. Pergesa castor. 



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



Java (Henry). B.M. 



7. Pergesa olivacea. 



Pergesa olivacea, Moore, P. Z. S. 1872, p. 567. 

 Pergesa castor, var. /3, Walker, /. c. (1856). 



? (E. Doubleday). B.M. 



Walker asserts that this species is from Silhet ; but there is no locality given for it in 

 the register. It was presented to the collection by Mr. Doubleday along with many other 

 species, most of them without localities. It is a well-marked species, and perfectly dis- 

 tinct from P. castor. The type in Mr. Moore's collection comes from Simla, North-west 

 Himalayas, 7000 feet; it was taken by Capt. Lang. 



8. Pergesa swiniioei. 



Chcerocampa swinhoei, Moore, Proc. Zool. Soc. 1866, p. 362. no. 3. 

 Formosa (Swinhoe). Type, coll. F. Moore. 



This appears to me to be better placed in Pergesa than in Chwrocampa. 



9. Pergesa 1 macroglossoides. 



Perigonia macroglossoides, Walker, Lep. Het. Suppl. v. p. 1851 (1866). 

 Darjeeling. 



