THE CANADIAN ENTOMOLOGIST. 145 



Lithocolletis, but is a Gracilaria. A more careful comparison of P. robini- 

 ella with the description of L. gemmea by F. & B., convinced me that 

 the latter was a very different insect from P. robiniella, and that its identi- 

 fication therewith by F. & B. was altogether wrong; and it fuither con- 

 vinced me of the fact that Gracilaria mirabilis F. & B. is P. robiniella 

 Clem., which I had previously transferred to Gracilaria as G. robiniella. 

 These corrections were made in the Cin. Quar. Jour. Sci., vi., p. 339. An 

 examination of one of the types of L. gemmea shows that it is a true 

 Lithocolletis, nearer perhaps to L. ornatella Cham, than to any other known 

 species, but very distinct from it, and about as much like Gracilaria 

 (Parcctopa) robiniella Clem. (G. mirabilis F. & B.) as 'Colias philodice is 

 like Papilio asterias. 



L. aenigmatella Frey & Boll. 



I have not seen a specimen of this species, but I think it will turn out 

 to be L. tillmella Cham., described long previously. 



L. Scudderella Frey & Boll. 



A specimen of this species is among the insects submitted to me 

 by Dr. Hagen. I have heretofore regarded it as equivalent to the variable 

 L. salkifoliella Clem. & Cham. Unfortunately I have no specimen of the 

 latter species now with which to compare the specimen of Scudderella, but 

 I incline to the opinion, after examining Scudderella, that it is distinct from 

 salkifoliella. 



L. quercii'orella, n. sp. 



Face, tuft and antennae silvery white, the sides of the tuft immediately 

 over the eyes reddish saffron, and each antennal joint with a fuscous spot 

 on the upper side at its outer margin. • Thorax and primaries reddish 

 orange, with a wide white streak along the middle of the thorax from its 

 anterior margin to the apex, which, when the wings are closed, is con- 

 tinuous with a dorso-basal streak on each fore wing, and which extends 

 beyond the middle of the dorsal margin. There are on the fore wings 

 three costal white streaks ; the first is dark margined behind and on the 

 costa before ; the second behind and around the tip. with the dark scales 

 produced a little way back ; both of these streaks are oblique and resemble 

 in position and character the costal streaks of L. basislrigella, L. ulmella 

 and L. bicolorella. The third streak is a mere spot before the cilire, is 

 dark margined both before and behind, and opposite to it is a dorsal white 



