Lepidoptera op New York and Neighboring States 217 



(50) C. rossefoliella Clemens. 



Alar expanse: 12.5 mm. 

 Locality: Pennsylvania (end of May). 

 Food plant : Buds of common hundred-leaf rose. 



Larval case : Of silk, covered with granulations ; brown varied with gray ; 

 posterior end (pistol handle) turned down like a hook; 

 mouth slightly deflected (from Clemens' description). 

 I have never seen the case, and the species is therefore only tentatively placed in 

 this group. (C. H. ) 



(51) C. malivorella Riley. 



Alar expanse: 12.5-14 mm. 



Locality: Atlantic States (early July). 



Food plant: Apple. 



Larval case: Black with large, whitish fibrous patch along upper edge; 

 handle short and evenly rounded; small, toothed projec- 

 tion on underside close to handle; flaps present, scalloped, 

 small, and closely appressed within angle of handle; mouth 

 deflected to 45 degrees; 8-9 mm. long. 

 This is the well-known " pistol case-bearer " on apple. The larvse eat the buds, 

 leaves, and young fruit. , 



(52) C. atromarginata Braun [currucipennella Walsingham nee Zeller). 



Alar expanse: 10.5-14.5 mm. 



Locality:' Eastern United States (June- August). 



Food plants : Quercus platanoides and Quercus rubra. 



Larval case: Black, with faint white V marking on underside of barrel; 

 handle turned down abruptly; flaps present, moderately 

 large, not closely appressed; mouth deflected to nearly 45 

 degrees; 5.5-8 mm. long. 



(53) C. elasagnisella Kearfott. 



Alar expanse: 15-21 mm. 



Locality : Ottawa, Canada ( July ) . 



Food plants : Elceagnus argentea; Hippophoe rhamoides; Shepherdia 

 argentea. 



Larval case: Grayish brown," elongate; without flaps; pistol handle reduced, 

 giving a sort of scimitar shape to the case; upper edge 

 smooth; a slight projection from near middle of lower 

 edge; mouth deflected to 45 degrees; 10-12 mm. long. 



(54) C. querciella Clemens. 



Alar expanse: 12 mm.' 



Localities: Pennsylvania; Virginia; Long Island, New York. (June). 



Food plants : Quercus prinus and Q. alba. 



Larval case: Grayish, with conspicuous black, somewhat lumped patch on 

 back near posterior end; without flaps;- handle much 

 reduced, turned down at 45 degrees angle with upper edge; 

 a slight projection back of middle on lower edge; mouth 

 deflected to 45 degrees; 9-10 mm. long. 



(55) C. atlantica Heinrich (fig. 123). 



Alar expanse: 11-15 mm. 

 Locality: Eastern United States. 

 Food plant: Prunus serotina. 



Larval case (fig. 126) : Black; handle evenly curved; flaps present, rather 

 small and appressed; mouth deflected to about 45 degrees; 

 8-9 mm. long. 

 This is the pistol case species wrongly identified by Kearfott as C. pruniella 

 and so listed in the New Jersey list. 



