Mr. A. G. Butler on Peruvian Lepidoptera. 117 



deep central transverse depression at the posterior margin and 

 a few short bristles in front. Antennas slightly setose, six- 

 jointed, the last joint cylindrical, rounded at the tip. Nuchal 

 plate smooth, but uneven, with a slight central depression in 

 front and an anterior marginal ridge. Dorsal plates covered 

 with very fine shallow punctures. First dorsal segment with 

 a distinct lateral marginal ridge ; last dorsal segment arched, 

 slightly compressed, its margin entire and not ridged ; inter- 

 mediate segments with the lateral extremities broad, rounded 

 in front and rectangular behind, with a rough triangular exca- 

 vation at the anterior lateral angle ; the 10th and 11th seg- 

 ments broader than those before them. Black, shining, move 

 or less marbled with dark testaceous. Length '75 inch, 

 breadth "4 inch. 



Log. Dunedin. 



Differs from *S'. De Lacyi (White, Ann. & Mag. Nat. Hist. 

 3rd ser. iii. p. 406) in colour, in not being posteriorly atte- 

 nuated, and in the head being much broader and shorter. 



Ohs. The types of all these species are preserved in the 

 Otago Museum, Dunedin. 



XVII. — List of Lepidoptera recently collected by Mr. Walter 

 Davis in Peru, with Descriptions of a neio Genus and 

 several new Species. By Arthur G. Butler, F.L.S., 

 F.Z.S., &c. 



The interesting little collection of which this is an account 

 was made by Mr. Davis at odd moments snatched from the 

 prosecution of his study of the botany of the country. 



Although the families Erycinidre and Lycjenidas are unrepre- 

 sented and only two species of Hesperiida; have been obtained, 

 the remaining families of the Rhopalocera are fairly repre- 

 sented, several rare and new species having been collected. 

 Amongst the more striking forms may be mentioned the very 

 scarce and beautiful Agrias sardanapalus, Catagramma Fel- 

 deri, and two species of Callithea. 



In order to render this enumeration as convenient as pos- 

 sible for reference, I have followed the arrangement adopted 

 in Mr, Druce's List of Peruvian Butterflies in the ' Zoological 

 Proceedings ' for 1876. 



