LEPIDOPTERA OF NEW YORK AND NEIGHBORING STATES 201 



L. platanoidiella. Blotch mine. 



L. fletcherella. Blotch mine on white oak. 



L. bethunella. Small blotch mine. 



L. castanecella. Small blotch mine. 



L. fasciella. Small blotch mine. 



L. obstrictella. Mine a broad, branched tract, usually Y-shaped; most com- 

 monly on chestnut oaks. 



L. tubiferella. Mine a broad, linear tract, gradually increasing in breadth 



and occasionally branched; larva placed transversely in mine. 

 Ulmus spp., elms: 



L. argentinotella. Large, tentiform, underside mine. 



L. occitanica. Tentiform, underside mine. 



L. ulmella. Upper-side, blotch mine. 

 Celtis occidentalis, hackberry: 



L. celtisella. Underside, linear mine, expanding into an upper-side blotch, 

 with a longitudinal ridge. 



L. celtifoliella. Underside, tentiform mine. 

 Hamamelis virginiana, witch-hazel: 



L. hamameliella. Whitish, upper-side, blotch mine. 

 Pyrus mains, apple: 



L. malimalifoliella. Small, tentiform, underside mine; also on quince. 



L. cratcegella. Small, tentiform, underside mine. 

 Cratcegus spp., hawapple: 



L. cratcegella. Small, tentiform, underside mine. 

 Prunus serotina, wild black cherry: 



L. propinquinella. Large, tentiform, underside mine. 



L. cratcegella. Tentiform mine, smaller than that of L. propinquinella. 

 Amorpha fruticosa: 



L. uhlerella. Whitish, rather flat mines on underside of leaves. 

 Robinia pseudoacacm, locust: 



L. robiniella. Under- or upper-side, white mines. 



L. gemmea. Upper-side miner. 



L. ostensackenella. Yellow, blotch mine, on upper or lower side. Larva leaves 



the mine to pupate. 

 Amphicarpa monoica, hog peanut: 



L. morrisella. Large, white, tentiform, underside mine, sometimes containing 



several larvae. 

 Desmodium spp., Lespedeza spp., and Phaseolus: 



L. desmodiella. Tentiform, underside mine, sometimes inflated and containing 



several larvse. 

 Rhus toxicodendron, poison ivy: 



L. guttifinitella. A broad, tortuous, irregular tract on upper side of leaf. 

 Acer spp., maples: 



L. clemensella. Underside, tentiform mine, on sugar maple. 



L. lucidicostella. Underside, tentiform mine, on sugar maple. 



L. trinotella. Small, underside, tentiform mine, on red and silver maple. 



L. saccharella. Irregular, upper-side, blotch mine, chiefly on sugar maple. 



L. aceriella. A flat, broad, tract on upper side; most commonly on red maple. 

 JEsculus spp., horse-chestnut, buckeye: 



L. cesculisella. A broad, linear, upper-side tract, sometimes containing five 



or six larva?. 

 Titia, americana, basswood: 



L. lucetiella. Transparent, unwrinkled, underside mine; cocoon oval. 



L. tiliacella. Circular, whitish, speckled, tent mine on upper side. 



