156 LLOYD'S NATURAL HISTORY. 



type of the genus Baltia, Moore, which differs from all the 

 genera allied to Pieris and Aporia by the very large club of the 

 antennae, and the short, broad, hind-wing cells, which are almost 

 truncated at the end, and scarcely angulated. Mr. Moore has 

 described a second species of Baltia from Lahore, under the 

 name of Synchloe butleri. The references to these species are 

 as follows : 



BALTIA SHAWII. 



Mesapia shawii. Bates, in Henderson and Hume, Lahore to 



Yarkand, p. 305 (1873). 

 Baltia shawii, Moore, 2nd Yarkand Exped. Lepid. p. 3, pi. 



i, fig. 5 (1879); Kirby, Entomologist, xxvii. p. 100 



(1894). 

 Pieris shawii, Groam-Grshimailo in Romanoff's Mem. Lepid. 



iv. p. 222, pi. 10, figs. 2a, b (1890). 



BALTIA BUTLERI. 



Synchloe butleri^ Moore, P. Z. S. 1882, p. 256, pi. n, figs. 



6, 6a. 



These species are white, with blackish apical markings, and 

 have much more superficial resemblance to Pontia than to 

 Mesapia. 



GENUS DAVIDINA. 



Davidina, Oberthiir, Etudes d'Ent. iv. pp. 19, 108 (1878); 

 Schatz, Exot. Schmett. ii. p. 59 (1886) ; Leech, Butterflies 

 of China, p. 474 (1893). 



The type of this genus is a very remarkable Butterfly, found 

 at a great elevation in the mountains of Central China. The 

 genus is imperfectly known, and I will therefore only charac- 

 terise it here as far as the figures enable me to do so. 



Palpi long ; antennae about one-third as long as the costa of 



