98 William T. M. Forbes 



Rubus spp., blackberry, raspberry: 



(1) N. villosella; narrow, serpentine mine. 



(2) N. rubifoliella; short, narrow, linear mine, expanding into a blotch. 

 Rosa spp., rose: 



( 1 ) X. roscefoliella ; serpentine mine. 

 Primus serotina, wild black cherry: 



(1) A 7 , bifasciella ; narrow, serpentine mine. 

 Primus americana, wild plum : 



(1) A*, bifasciella; narrow, serpentine mine. 



(2) N. slingerlandella; narrow, linear mine, abruptly enlarging into an irreg- 



ular blotch ( also on cultivated plums and prunes, and sweet cherry ) . 

 Ptelea trifoliata, hop tree : 



(1) N. pteliazella; very long, much contorted, narrow, serpentine mine. 

 Rhus toxicodendron, poison ivy: 



(1) A 7 , rhoifoliella; narrow, contorted, serpentine mine. 

 Rhus spp., sumac: 



(1) A T . intermedia; narrow, contorted, serpentine mine. 

 Acer saccharum, sugar maple : 



(1) Glaucolepis saccharella; very long, linear mine. 

 Acer rabrum, red maple: 



(1) Glaucolepis saccharella; very long, linear mine. 

 Rhamnus lanceolata, buckthorn : 



(1) N. rhamnicola; linear mine, expanding into an irregular blotch. 

 Tilia americana, basswood : 



(1) N. tilliella; serpentine mine. 



(2) A 7 , argentifasciella; indistinct, linear mine, expanding into a blotch. 

 Nyssa sylvatica, sour gum or pepperidge: 



(1) A 7 , nysscefoliella; linear mine, abruptly expanding into a blotch. 

 Oxycoccus macrocarpus, cranberry: 



(1) A 7 , paludicola; serpentine track, in part following the margin of the leaf. 



