H I -DROCAMPID^—HYDROCAMPA. 293 



of the segmental divisions, and paler at the folds. (W. 

 Buckler.) 



September till June or July, on Pofamogeton natans, P. 

 j]ohjgonifoliii.s, P. pusillus, Sparganiurii simplex, Myosotis 

 palustris, Hjidrocharis morstis-rance, Catabrosa aquatim, 

 Alisma plantago, Nymphma, and other aquatic plants ; 

 living in a case composed of portions of its food-plant, and 

 floating at, or near, the surface of the water. Mr. Buckler 

 observed that it cut out an oval piece from a leaf and con- 

 veyed this cut piece under the leaf in order to add a similar 

 piece on the other side, thus forming the case, and cutting it 

 completely adrift so as to float freely. When feeding the 

 case was moored by a silk thread to the food-plant. After 

 casting a skin the case was discarded leaving the distended 

 old skin within, and the naked larva proceeded to form a 

 new shelter. 



Pupa half an inch long, the thickest portion being across 

 the wing covers ; abdomen tapering to the anal tip. which is 

 bluntly rounded ofi" without any projecting boss or spike, but 

 having instead a horny wart, cleft and bilobed, furnished 

 with a few small bristles ; wiug covers long ; antenna and 

 leg-cases very long, projecting at their ends free from the 

 abdomen ; wing covers, ventral surface, and anal tip shining 

 light warm brown ; thorax and back of the abdomen a little 

 darker and rather reddish-brown, without gloss ; spiracles 

 large and projecting, like nipples, each on a slight eminence, 

 shining dark brown, each with a paler ring at the base ; in 

 a chamber formed by drawing together two leaves of r<par- 

 ganium or some other water plant, and spinning together a 

 space situated at an inch or two above the surface of the 

 water. (W. Buckler.) 



The moth hides during the day among coarse herbage at 

 the margins of rivers, streams, ponds, lakes, fen drains, and 

 wet ditches — everywhere indeed where aquatic herbage is 

 in any plenty, and is readily disturbed, flying in a lively 



