1G0 
The perfect insect appears in May and June—May 
30, June 1. 
The date of the appearance of the caterpillar is in 
J uly. 
It feeds on the bitter vetch (Orobus niger). 
The chrysalis is found in a cocoon attached to the 
lower side of a leaf. 
CORISCIUM BROGNIARDELLA. 
Plate CXVII. Figure 9. 
Localities for this species are York, Bristol, Guildford, 
Cambridge. 
The situations where it is found are among oaks. 
The perfect insect appears in April, June, July, 
August, and September. 
The caterpillar is pale whitish green, with a dark 
green line along the back; the head pale brown. 
The date of the appearance of the caterpillar is May, 
June, July, and the beginning of August. 
It feeds on the oak. 
CORISCIUM CUCULIPENNELLA. 
Plate CXVII. Figure 10. 
Localities for this species are Brighton, Folkestone, 
Whittlebury, Dartford Heath, Bristol, Kingsbury, Pem- 
bury, Leyburn. 
