458 mr. a. g. butler on the genus euptychia. [nov. 22, 



Brahmcea. 



Bv the kind assistance of Mr. Frederic Moore I have discovered 

 that my Brahmcea petiveri is identical with B. lunulata of Bremer, 

 figured in the third part of Menetries's catalogue, the habitat of that 

 insect being stated as North China. B. whitei I believe goes under 

 the name of hearseyana, which I imagine must have been the name 

 intended for it by Mr. Adam White, the specimen which he figured 

 having been brought over by General Hearsey. 



Brahmcea lunulata. 



Brahmcea lunulata, Bremer, Etud. Ent. de Motschulsky, p. 64 

 (1852) ; Menetries, Reis. und Forsch. in Amur-Laude, Bd. ii. p. 55. 

 n. 134 (1859) ; Cat. Lepid. Mus. imp. Petrop. iii. pi. 15. f. 5. 



Brahmcea petiveri, Butler, P. Z. S. 1866, p. 120. 



Saturnia undulata, Bremer, Beitr. zur Schmett.-Fauna des Nordl. 

 China's, p. 16. n. 78 (1853), 



Hab. Isle of Chusan (Petiver) ; North China (Bremer, Menetries). 



13. A Monograph of the Genus Euptychia, a numerous race 

 of Butterflies belonging to the Family Satyridce ; with 

 Descriptions of Sixty Species new to Science, and Notes 

 on their Affinities &c. By Arthur Gardiner Butler, 

 F.Z.S., Assistant, Zoological Department, British Mu- 

 seum. 



(Plates XXXIX., XL.) 



The very numerous genus which I have now taken in hand has 

 for some years remained comparatively untouched by entomologists. 

 The species are confined exclusively to the New World, the majority 

 of them being natives of" South America. They are generally rather 

 sober in colouring ; but some species are exceedingly brilliant, and 

 often varied on the underside with silvery spots and streaks which 

 appear embossed, as though molten metal had been dropped upon 

 the wings. 



Euptychia is closely allied to several other Satyride genera, from 

 some of which it seems scarcely to differ except in colouring or loca- 

 lity. Professor Westwood, in the ' Genera of Diurnal Lepidoptera,' 

 has separated it under two names, Neonympha and Euptychia, fol- 

 lowing the example set by Hiibner in his ' Verzeichniss der bekannten 

 Schmetterlinge ;' but most entomologists now agree that the two 

 genera are synonymous. In the ' Genera,' although great trouble 

 has been taken in dividing them, several species are placed under 

 both heads. 



In the present paper I have placed the insects as nearly as pos- 

 sible in natural consecutive order, and divided them under sections, 

 to render their determination less difficult. 



This Monograph includes all the species in the National Collection, 



