82 
Hammersmith, Barnstaple, Birkenhead, Bristol, Oxford, 
Cambridge,Scarborough, Stowmarket,Ranworth, Sheffield 
The perfect insect appears in June, July, and August. 
The caterpillar is whitish green with a darker line 
along the back; the head brown. 
The date of the appearance of the caterpillar is in 
March and April. 
It feeds on the water soldier (Stratiotes aloides ), the 
water starwort ( Callitric/ie verna), etc. 
The chrysalis is found enclosed in a cocoon among 
leaves under water. 
IIYDROCAMPA NYMPHiEALIS. 
BROWN CHINA-MARK. 
Plate LXXY. Figure 2. 
Localities for this abundant species are York, Brighton, 
Birkenhead, etc., etc. 
The situations where it is found are ponds. 
The perfect insect appears in June and July. 
The caterpillar is dull yellowish white with a tinge 
of brownish on the fore part. 
The date of the appearance of the caterpillar is in April. 
It feeds on the water lily (Naphar luteum ), and the 
pond weed (Potomogeton natans). 
The chrysalis is found enclosed in the case of the 
caterpillar. 
