From the ANNALS AND MAGAZINE OF NATURAL HISTORY, 

 Ser. 7, Vol. ii., November 1898. 



On the Pierine Butterflies of the Genus Catophaga. 

 By ARTHUR G. BUTLER, Ph.D., F.L.S., F.Z.S., &c. 



WHEN Wallace described his extensive genus Tachyris, 

 based chiefly upon the tuft at the base of the claspers in the 

 males, he seems to have been unaware that Hiibner had 

 already proposed three generic names, viz. Appias, Catophaga, 

 and Hiposcritia (recte Hyposcritid) for species having this 

 secondary sexual character. 



I find that Appias (type A. zelmira) is undoubtedly gene- 

 rically distinct, the club of the antennae being broadly spoon- 

 shaped and flattened ; but I see no reason for regarding 

 Catophaga, Hiposcritia, and Tachyris (restricted) as more 

 than groups of one genus, differing chiefly in outline of wing 

 and style of coloration. In the case of Saletara the structural 

 difference in neuration is inconstant, and consequently only 

 of subgeneric value ; I therefore regard this also as a group, 

 though perhaps a little better defined than the others. 



Group 1. HYPOSCRITIA, Hiibn. 



The species of this group have the apex of the primaries 

 usually more or less falcate; the males of the wet-season 

 phase are either cream-coloured or ochraceous on the under 

 surface of the secondaries, rarely (perhaps never) heavily 

 speckled or striated; whereas the dry-season phase of the 

 male more or less resembles a dead leaf in tint on the under 

 surface. 



Type of the group H. pandione. 



1. Hyposcritia iadra. 



Pieris indra, Moore, Cat. Lep. E. I. C. i. p. 74 (1857) ; P. Z. S. 1857, 



p. 103, pi. xliv. fig. 5. 

 Appias mahana, Moore. Ann. & Mag. Nat. Hist. ser. 4. vol. xx. 



p. 48 (1877). 



Appias imbecilis, Moore, Journ. As. Soc. Beng. liii. p. 46 (1884). 

 Tachyris indigis, Weymer, Stett. ent. Zeit. 1886, pi. i. fig. 3, 1887, 



p. 11. 



N.E. India and Burma. $ , type, B. M. 



We have one male labelled " Celebes," but I believe this 

 to be an error; it was received from the Godman and Salvin 

 collection (ex coll. Druce). H. indra is the wet-season 

 phase, H. mahana dry, 11. imbecilis = indigis an extreme 

 dry phase. 



