112 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



Prunus Americana. Red Wild Plum. 



Lithocolletis cratwgella, Clem. Larva as in Cerasus serotina (supra). 



Anarsia pruniella, Clem. Larva feeding in woody excrescences. 



Lvippe prunifolieUa, Cham. Larva feeds under the tip of the leaf, 

 tamed down. 



Xylesthia pruniramiella, Clem. Larva feeds in woody excrescences. 

 There is also a larva of an unknown species which makes a linear miue, 

 ending in a blotch, and which leaves the mine to pupate. 



Amelanciiier canadensis. June- or Serviceberry. 



Ornix quadripunctella, Clem. Larva in a tentiform miue in the leaves. 



Nej)ticula amelanchierella, Clem. Larva makes a linear, crooked mine 

 in the leaves; imago unknown. 



Crataegus, different species. Blackthorn, Hawthorn. 



Lithocolletis crata'gella, Clem. Larva and mine as in Cerasus serotina 

 (supra). 



Aspidisca splendor if erclla, Clem. Larva and mine as in Cerasus sero- 

 tina (snpr<t). 



Tisckeria malifoliella, Clem. Larva in a flat, trumpet-shaped, yellow- 

 ish mine in upper surface of leaves. 



Ornix cratcegifoliella, Clem. Larva in tentiform mine on under side of 

 leaves. 



Ornix inusitatumclla, Cham. Larva in white flat mine, specked with 

 "frass", in upper surface; pupates in the mine. 



Nepticula cratcegifoliella, Clem. Larva iu a crooked, linear mine in 

 upper surface of leaves; imago unknown. 



Pyrus coronaria. Fragrant Crab. 



Lithocolletis cratayclla, Clem. Larva as in Cerasus serotina (supra). 

 Tischrria malifoliella, Clem. Larva as in Crataegus (supra). 

 Aspidisca splendor if erella, Clem. Larva as in Cerasus serotina (supra). 



Pyrus malus. Apple. 



Buceulatrix pomi/hliclla, Clem. Larva at first a miner, then feeds 

 externally. As to other species, see Pyrus coronaria (supra). 



Pyrus communis. Common Pear. 



Lithocolletis nidijicansdla, Packard. Said to mine the leaves; is most 

 probably a Lyonetia. 



Cydonia vulgaris. Common Quince. 

 Cydonia japonica. Japan or Flowering Quince. 



Lithocolletis cratayella, Clem. Larva and mine as in Cerasus serotina 

 (supra). 



Rosa. Various species of Rose. 



Coleoplwra rosafoliella, Clem. Larva iu a case feeds on leaves of Rosa 

 centifolia. 



