232 THE CANADIAN ENTOMOLOGIST. 



And as I had previously described a very different species as G. pallid- 

 ochrella, I suggest for this species the specific name of gleditschiceella. 



While upon the subject of species feeding on Gkditschia, I wish to 

 call the attention of Coleopterists to two species of Buprestidse which 

 feed upon this tree. I have never bred either, and have met with each 

 only once, one of them in the larval, the other in the pupal condition. 

 The larva, which resembles that of a Brachys more closely than it does 

 that of any other genus known to me, feeds inside the thorns, and is about 

 I ^ lines long. It is depressed and narrows rapidly from the third seg- 

 ment back to the tenth, the remaining segments being again dilated. 



The other species feeds /;/ the seed. The only specimen that I have 

 met with was a dead pupa found in a seed in May. The entire contents 

 of the seed had been consumed, and the pupa fitted the pericarp so 

 accurately that it looked as if the contents had been metamorphosed into 

 the pupa — as in a sense they had — while the pericarp itself was intact. In 

 breaking open the seed the pupa was somewhat crushed, and it may prove 

 not to be that of a species of Buprestidse, but I think it belongs to that 

 family. The pupa having so nearly the shape and size of the bean or 

 seed of the Gkditschia is about three lines long by two wade, and 

 depressed. There is no danger of mistaking the larva of Laverna gled- 

 itschiceella Cham, for that of either of these species. 



In this connection I wish also to refer again to the very singular larva 



mentioned in the Can. Ent.,v. 8, p. 137, and to add to the account there 



given of it that the maxillae are enormously developed and are used as 



aids to progression — not exactly as legs, perhaps,- — but they are applied to 



the surface as if the insect was feeling its way with them. Their eyes are 



reduced to the merest points — indeed I am not sure that these points are 



eyes— and enclosed in the darkness of the thorn it has more use for 



" feelers" than for eyes. Laverna gleditschiceella, however, which likewise 



feeds in the thorns, has the eyes well developed. The other larva tumbles 



about helplessly on a plain surface, being unable to walk on it. It requires 



a tubular place or cavity like the inside of the thorn, where by arching its 



body the dorsal tubercles can be brought to bear on one surface, while its 



ventral legs bear on the opposite one, and then it progresses easily 



enough. Using what is called the live-box or animalcule cage by micro- 



scopists, placing the larva between the glass and its brass setting, it courses 



around actively, using its dorsal tubercles as legs. I have never succeeded 



in rearing it, and do not know to what order it should be relerred. 



