LEPIDOPTERA OF NEW YORK AND NEIGHBORING STATES 179 



I. Maxillary palpi very small, less than a fifth as long as labials; palpi 

 smoothly scaled; spining on hind tibia; moderate. M 3 of hind icing lost. 

 Larva changing gradually from flat to cylindrical type (Xeurobathra Ely). 



1. A. strigifinitella Clemens. Palpi yellowish white, barred with brown; head 

 and antenna dull brown; fore wings grayish brown, striate obliquely from both 

 margins with fine white striae, edged with black, alternating with heavier solid 

 black ones. An apical ocellus. 8 mm. (Dialect ica Walsingham; Ornix querci- 

 foliella, Gracilaria duodecimlinella Chambers.) 



The larva feeds on chestnut, chinquapin, oak, and beech. In the first two stages 

 it is of the flat type, and makes a linear mine; the third stage larva is cylindrical, 

 with an essentially normal head, but with rudimentary legs and the head flatter 

 than it is later. It bores in a lateral vein. The fourth and later stages are of 

 the normal cylindrical type, and bore in the midrib. If the supply of food in 

 the midrib fails, the late larva forms a large, pufl'y blotch-mine, with scattered 

 frass. There is no non-feeding stage. Pupation is outside the mine, in a white 

 cocoon decorated with four separate masses of froth. The species breeds continu- 

 ously all summer. 



Xew York to Missouri. The species is in the Robinson collection, presumably 

 from this State. 



II. Maxillary palpi a fourth as long as the labials, which Itare a moie or less 

 distinct triangular tuft on the second segment; larva (so far as knomi) 

 changing abruptly to final stage ; tibial bristles variable. Fore icing with 

 traces, at least, of all dorsal reins ( Acrocercops I . 



2. A. astericola Frey and Boll. Lutecus, more or less dusted with In-own; head, 

 with its appendages, white. Fore wing with a broad, oblique, more or less tri- 

 angular, white fascia two-fifths w r ay out, edged, especially inward, with black; not 

 reaching inner margin; two others, half as wide, beyond it, which have a heavier 

 black edging. Apex white, preceded with black and followed by a double bar in 

 the fringe; the outer fascue reaching the inner edge of the membrane. A short 

 antemedial costal fascia, and two on inner margin. 9 mm. (Gra-eilaria, Parectopa.) 



May. August. 



The larva forms a large, tentiform blotch mine on Aster corymbosus etc.; the 

 pupa is outside the mine, in a firm cocoon. 



Massachusetts to western Pennsylvania. Xew York: Ithaca. 



3. A. strigosa Braun. Dull brown, with seven slender, parallel, outwardly oblique, 

 white fas'cite across the wing, more or less edged with black, and somewhat broken. 

 10 mm. 



The moth occurs in June. The larva is found on Quercus prinus, at first in a 

 narrow white gallery, then in a large, whitish blotch, from which the parenchyma 

 is gradually eaten out. The cocoon is dense and brownish, witli the usual globules. 

 The larva is full grown at the end of May. 



Tryon, North Carolina; Powell County, Kentucky. 



4. A. (?) boreasella Clemens. Fusrous, with nearly round, white, postmedial and 

 subterminal spots en costa, and medial and subterminal ones on inner margin, the 

 last extending into the fuscous fringe. 9 mm. (Orni-x ? Clemens, Gracilaria T of 

 authors.) 



Labrador. 



o. A. onosmodiella Busck. Golden brown; head, thorax, and appendages for the 

 most part silvery; antennae dark with silver line; fore wing with markings heavily 

 black-edged; a large, antemedial crescent on crsta, followed by three triangles; 

 two silver triangles on outer part of inner margin, alternating with two costal 

 ones; base of inner margin and apex silver white. Palpi wholly white. 9 mm. 

 (pnosmodiella Busck, lapsus calami). 



