200 FIFTH EEPORT OF THE ENTOMOLOGICAL COMMISSION. 



ened by their attacks in Juue. There are in Washington five or six 

 broods of moths. The best remedy is to collect and burn the fallen 

 leaves in the spring, since they contain the worms in their final stage 

 before transforming. (Comstock.) 



Fig. 61. — Oak leaf, with blotch-mine of Lithocolletis hamadryadella. 



I have noticed the larva and its mines in abundance at Providence 

 in Septemlber and October. 

 The following notes have been furnished by Professor Eiley: 



Received July 5, 1884, from N. H. Bishop (Griswold collection), Daveuport, Iowa, a 

 lot of leaves of different kinds of oak, badly infested with larva? of the above insect. 

 On some of the large leaves the entire upper surface was undermined. The same in- 

 sect is also very common on all kinds of oak on the Agricultural grounds at Wash- 

 ington, D. C. The moths commenced to issue July 12 to July 18, and at the same 

 time quite a number of four different species of parasites issued. (Unpublished notes.) 



The moth has white front wings, with three broad irregular bronze bauds across 

 each one, each band being bordered with black on its inner side. The hind wings 

 are silvery. The wings expand .28 inch. (Comstock.) 



219. Lithocolletis ttibiferella Clemens. 



The mine of this insect is represented at A in Fig. 62, which has been 

 identified by Mr. W. Beuteumiiller, who thinks that the other mine (at 

 C) is the work of a Nepticula. 



