208 P^'oj. Frey, and some American Teneina. 



of the Clemens' papers; and the utter confusion which must result 

 from a repetition of such brochures as this of Professor Frey, is equally 

 as evident to all. 



But we repeat, where is the confusion about L. ornalella? The 

 whole history of it is given in Can. Ent., vol. iii., pp. 8, 54, 161, 182, 

 and 205. It will there be seen that the larva was first known to 

 Dr. Fitch, who, however, wrongfully attributed to it the mine of 

 L. rohinieUa, Clem., and got the larva and mine confused with some 

 species of Anacampsis, but he knew nothing of any Lithocolletisornatella. 

 That was confusion. Next Dr. Clemens incorrectly denied that there 

 was any such mine, and determnied properly that the larva was one of 

 the flat Lifhocallctis group, which he had not met with, and did not 

 believe it existed on the locust, and that the mine was that of L. rohin- 

 ieUa, Clem. Still I admit there was confusion, though less of it. 

 Then I found on the leaves both the larva described by Dr. Fitch, 

 each in its proper mine, and bred L. ornatella from one, and L. rohinidla 

 from the other. Thus, L. ornatella has been made known in all of its 

 stages and habits. Where, then, is the confusion? And it has since 

 been bred hundreds of times from other nearly allied plants, as well 

 as from locust leaves. 



The next locust miner is one of which Prof. Frey says little more 

 than that he thinks he has found it (or its mines) among Mr. Bollo's 

 material, viz.: Lithocollelis rohinieUa, Clem., subsequently described by 

 Dr. Fitch, Avho also described as dififerent species three micros much 

 like it, all of which, however. Dr. Clemens, and I since him, after 

 rearing multitudes from their mines in locust leaves ( Rohinia pse^ulac- 

 acia and R. hisjnda), both on the upper and under sides, and from 

 JDesmodium and allied genera have concluded to be new varieties of 

 L. rohinieUa. Where, then, is the confusion about this species ? 



Dcpressaria rohinieUa, Packard, has never been considered doubtful. 

 Neither has GelecliiapseudaccacieUa, Cham. But little is known about 

 these two species beyond the description. I have mentioned (Can. 

 Ent., vol. iii., p. 87) a Gelechia like larvae, dwelling in a tube of 

 "frass," which it had constructed inside of the mines of L. rohinieUa, 

 and which, as they are not the larvoe of G. pseudaccaciella, must be the 

 larvse of some new species ; and I have occasionally observed Galechia 

 larvffi swinging by thin little threads from locust leaves, which may be 

 the same with the tube dwellers above mentioned ; and, at all events, 

 is the larvse of an unknown species. Gracilaria desmodifoliella feeds 

 on leaves of desmodium. Its life history is known, and there is no 

 confusion about it. These are the only micro larvse feeding on locust 

 leaves yet made known (except the two next mentioned below), and 



