ACENTROPODIDyE. 40 



is light olive, marked with dark brown ; head light 

 olive ; ventral surface and legs paler than the ground- 

 colour. Double-brooded. E. M. M. xii. 210. 



Ent. iii. 368. 



Hydrocampa stagnata, Don. 



stagnalis, On,, D. L. 



(Plate 6. fig. 9.) 



Loc. Scotland (widely distributed), Rugby, Possil 

 Marsh, Axmiuster, Bristol, Chester, Bramham, Hast- 

 ings, Sufi'olk, Goole, Iluddcrsfield, Sheffield, Norfolk, 

 Colchester, Deal, Pembroke, Ireland. 



Common in most places near water in June, July, 

 and August. 



The acjuatic larva feeds on Sparganium simplex, 

 mining the reeds in its early stages, and after hyberna- 

 tion feeding between the leaves united by silk. The 

 ground-colour of the larva is either bright transparent 

 yellow or olive-yellow; the head pale brown; second 

 segment yellow, marked with brown. It pupates 

 between two fragments of leaf spun together, cither 

 partially or entirely submerged, and moored to a 

 floating leaf. E. M. M. xiv. 101. 



ACENTROPODIDtE. 

 Acentropus niveus, Oliv. 



$ . kansoni, St. 

 cf. nivosa, St. 



(Plate 6. fig. 10.) 



Loc. Fifeshire (locally abundant) , Loch Leven, York, 



