MARBLED WHITE BUTTERFLY. 193 



% little beyond the middle ; that next the anal angle 

 /s double. The body is black above, and densely 

 clothed, as well as the base of the wings, with yel- 

 lowish hairs. Vaiieties occur in which one of the 

 colours occupies greater part of the wing : that in 

 which the black predominates has been taken near 

 Dover ; * in the other, which has been named Leu- 

 comelas, the secondary wings are entirely white be- 

 neath. 



The caterpillar is yellowish-green, with a dark 

 line along the back, and another on each side. The 

 head is reddish- brown, and there are two small spines 

 of the same colour on the hinder extremity. It is 

 found in May on the Timothy grass (Phleum pra- 

 tense). 



This pretty butterfly is regarded as very local, 

 t its localities are pretty widely scattered over 

 the south of England. It is usually found in moist 

 Blades, or in bogs and marshy ground, but some- 

 times frequents places of a very different description. 

 The following are a few of the stations in which it 

 tas been observed in greatest plenty. Near Dover, 

 Teignmouth, woods at Baylham Hall, Ipswich, Da- 

 renth Wood, &c. It is likewise abundant near 

 York, which is probably its most northern residence. 

 as it is not known to occur in Scotland. 



* This variety is figured by Esper (die Schmetterlinge, 

 tab. iii, fig. 4), and a similar one is represented in Loudon's 

 Mag. Nat. Hist. v. 335. 



