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 (Cattitriche verna), etc. 



The chrysalis is found enclosed in a cocoon among 

 leaves under water. 



HYDROCAMPA NYMPHJEALIS. 

 BROWN CHINA-MARK. 

 Plate LXXV. 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, (NapTiar luteutn), and the 

 pond weed (Potomogeton natans). 



The chrysalis is found enclosed in the case of the 

 caterpillar. 



