march, 1863. 209 



I have found in the leaf of the locust, although I have exa- 

 mined the leaves yearly for several years in succession. And 

 I will candidly say, that I do not think there can be two 

 species of Lithocolletis, that mine the leaves of the locust, for 

 Dr. Fitch's history of Anacampsis Robiniella is contradictory 

 and at variance with the natural history of the genus. His 

 description of larva shows that it belongs to the second larval 

 group * (see Proc. Acad. Nat. Sci., November, 1859, p. 318), 

 the mines of which are invariably flat and situated on the 

 upper surface of the leaf; but according to his description 

 the mine is on the under surface and tent-like. The flattened 

 Lithocolletis larvae cannot make a mine similar to that of the 

 cylindrical larvae, in consequence of the different formation of 

 their heads. In all probability Dr. Fitch has been led into 

 error respecting the insect he has named Anacampsis Robi- 

 niella, and I am unable to recognize, in his description of the 

 imago, any of the species of Lithocolletis known to me. 



Brenthia, Clemens. | 



Proc. Acad. Nat. Sci., May, 1860, p. 172. 



The second joint of the labial palpi almost tufted. 



£/,'tjn jSl B. inflatella. Fore-wings dull orange; in the middle of the 

 wing dark fuscous, dusted with white. At the base of the 

 wing are three or four small spots of a beautiful metallic green, 

 and two others of the same hue on the disk, between which, 

 on the costa, is a small white spot. At the apical third of 

 the wing is a curved metallic green band, extending from the 

 costa to the inner angle, beginning on the costa in a small 

 white spot. A little beyond the metallic line, towards the 

 base of the wing, on the inner margin, is a small spot of the 

 same metallic hue. Near the hinder margin is a subterminal 

 dark-fuscous line, which from the costa to the middle of the 

 wing is overlaid with metallic-green scales, and on the costa, 

 between the two transverse lines, is a white spot. Cilia fus- 



* See ante, p. 63. H. T. S. 

 t See ante, p. 133. H. T. S. 



