76 William T. M. Forbes 



margin, typically not reaching costa, but if so, narrow and angulate; spot beyond 

 middle of costa very large, and rather beyond the corresponding dorsal spot; sub- 

 terminal spot sending a spur down in dorsal fringe almost to anal angle. 18 mm. 



May; July. The structure is as in russatella, and the species is near capitella 

 of Europe, which bores in the stem of Eibes. It is doubtfully distinct from J. russa- 

 tella and occurs with it at New Brighton, Pennsylvania. 



Mt. Washington, New Hampshire; Ottawa, Ontario; British Columbia. New 

 York : Newcomb. 



3. I. aureovirens Dietz. Hind wing narrower than fore wing, ovate-lanceolate, 

 with hair-scaling. Markings about like i". taylorella. 6. mm. 



Pennsylvania. This species is unknown to me. 



/. labradorella Clemens, with fuscous head and markings much like russatella, 

 belongs here doubtfully; the type only is known, from Labrador. 



4. CHALCEOPLA Braun 

 (Cyanauges Braun, not Gorham; Incurvaria; Tineola, in part) 



Head very hairy, labial palpi minute, drooping, not extending beyond the front; 

 tongue and maxillary palpi obsolete. Venation as in Incurvaria; fore wing (in the 

 eastern species) overlaid with golden hair-scales. 



Key to the species 



Ground purple 1. dietziella. 



Ground blue-green 2. cyanella. 



1. C. dietziella Kearfott. Face very rough; M 1 and M 2 stalked in hind wing. 

 Fore wing when fresh with golden hair-scales mixed with the normal scales. Head 

 old gold; body and antennae fuscous; fore wing with the normal scales purple, 

 with golden bases, which are exposed in rubbed specimens. Hind wing slightly 

 brower. 9 mm. (Incurvaria, Tineola.) 



June. The larva possibly on Cornus. 

 Essex Co., New Jersey. 



2. C. cyanella Busck. M t and M ; free. Head brilliant orange-ochre, the antennae 

 contrasting, blackish; body and fore wings deep metallic green, the hair-scales 

 golden; hind wings purple. (Incurvaria Busck.) 



Alleghany Co., Pennsylvania; Cincinnati, Ohio; doubtfully from Maryland. 



5. PAKACLEMENSIA Dyar 



(Brackenridgia Busck 1903, not Aldrich 1902; Incurvaria, in part) 



Similar to Incurvaria, with narrow sparse scaling on the lanceolate hind wing; 

 M... of fore wing lost, Mj and KL of hind wing short-stalked. Antennae irregu- 

 larly scaled (fig. 48). Larva at first a leaf -miner, later in a lenticular case, eating 

 crescentic paths in the tissue of the leaves. (Fig. 48.) 



1. P. acerifoliella Fitch. Under-scaling deep purple-blue, densely overlaid with 

 peacock green; hind wing pale, translucent. Head orange, antennas black. 9 mm. 

 ( iridella Chambers ; Ornix Fitch ) . 



Larva (Maple case-bearer) on maple (normally only on rock maple) ; and more 

 rarely birch, oak, beech, and huckleberry (Braun); occasionally in injurious 

 numbers. 



Massachusetts to British Columbia. New York: St. Lawrence County, generally; 

 Black Brook (Clinton Co.), Ithaca, McLean, Albany, Bolton (Felt), Deposit. 



