100 THE ENTOMOLOGIST. 



Acting on Hewitson's suggestion, Gray, in 1856, established 

 the uncharacterised genus Mcsapia for Pieris pcloria, Hew., 

 placing it between Hypermnestra Jielios, Nick., and Doritis apol- 

 lina, Herbst, and this is the position which has generally been 

 assigned to it in our catalogues. 



A second species of Mcsapia {M. shaivii) has been described 

 by Bates, and subsequently made the type of a new genus, 

 Baltia, by Mr. F. Moore, as one of the Pierinae. The references 

 are as follows : — 



Genus Baltia. 



Moore, Ann. Nat. Hist. (5), i. p. 228 (1878). 



Baltia shawii. 



Mesapia shaivii, Bates, Henderson and Hume, Lahore to 



Yarkand, p. 305 (1873). 

 Baltia shawii, Moore, 2nd Yarkand Exped. Lep. p. 3, t. 1, 



f. 5 (1879). 



I have been able to examine specimens of this insect belonging 

 to Mr. F. Moore ; as well as others belonging to the Hope collection 

 at Oxford, through the kindness of Dr. Dixey ; and it proves to be a 

 true Pieride, with a superficial resemblance to Pieris leucodice, 

 E versm. ; but differs from all the genera allied to Pieris and Aporia 

 by the very large club to the antennae, and the short, broad hind 

 wing-cells, which are almost truncated at the end and scarcely 

 angulated. There is only one radial nervule, springing from the 

 subcostal nervure just beyond the end of the cell in the female, 

 and considerably beyond in the male. The claws are bifid, and the 

 wings are fringed. On the fore wings it is very difficult to make out 

 more than four subcostal branches (Moore says there are five) ; 

 and on the hind wings the cell is broader and shorter than in 

 Mesapia, and the lower submedian nervure is indistinct and very 

 short, reaching the hind margin at one -third instead of two- 

 thirds of the distance from the base to the end of the upper 

 submedian, which latter is the arrangement in Mesapia. I need 

 not characterise this genus in further detail, as Moore has 

 done so. 



Groum-Grschimailo re-describes and figures Pieris shaivii 

 (Eomanoff, Mem, iv. p. 222, t. 10, f. 2 a, b) ; but his figures 

 differ so much from Dr. Dixey's specimens that they probably 

 represent a distinct but allied species, unless the insect is very 

 variable. 



Synchloe hutleri, Moore, from Lahoul (P. Z. S. 1882, p. 256, 

 t. 11, f. 6, 6rt), is a second species of Baltia. 



Oberthilr (Etudes d'Ent. iv. p. 19, pi. ii. figl) describes, under 

 the Papilionidae, a new genus and species from North China, which 

 he calls Davidina armandii, and which he places between 



