LEPIDOPTERA OF NEW YORK AND NEIGHBORING STATES 689 



minute in our species; tongue weak or absent. Fore wings normally 

 with falcate apex; with accessory cell very long and slender, closed by 

 the anastomosis of R 3 and R 4 ; M, well separated from M 3 , but dis- 

 tinctly arising from Cu-stem in both wings ; M 3 and Cu 1? separate ; Cu, 

 arising well out on cell. Hind wing with humeral angle enlarged, 

 frequently supported by a short but distinct humeral vein; frenulum 

 more or less reduced, or lost ; humeral vein distinct in fore wing. 



Caterpillar (fig. 439) with more secondary hair than in the Thyati- 

 ridse, ventrally, but none dorsally except on the few enlarged tubercles ; 

 normally with hair-like skin granulation. Ventral prolegs normal, with 

 rudimentary outer hooks ; anals completely lost ; a tubercle or spine on 

 anal plate. 



There are two broods a year, often differing in color. 



Key to the genera 



1. Fore wings blunt; hind wing with Sc and R anastomosing (fig. 435). 



1. Eudeilinea. 

 1. Fore wings falcate; Sc and R of hind wings separate. 



2. Outer margin dentate (fig. 438) 3. Falcaria. 



2. Outer margin even. 



3. Frenulum and tongue lost .- 4. Oreta. 



3. Frenulum and tongue preserved 2. Drepana. 



1. EUDEILINEA Packard 

 (Cory da, in part) 



Antennae simple, laminate. Fore wing blunt (fig. 435), oblong with arched costa, 

 translucent. No accessory cell. Hind wing with Sc and R anastomosing, female 

 frenulum distinct, of many bristles. Larva with a mere tubercle on supra-anal 

 plate; with uniordinal hooks. 



1. E. herminiata Guenee. White; some blackish on legs; normally with ante- 

 and postmedial series of grayish points. Two discal points, obliquely placed, on 

 each wing, below. 28 mm. (biseriata Packard). 



May and June; July and August. Caterpillar on cornel. 



Generally distributed. New York: North Elba, Fourth Lake, Fulton Chain, 

 Newcoinb, Batavia, Oak Orchard Swamp, .Otto, Potter Swamp and Crosby (Yates 

 County), Taughannock Falls, Ithaca, Big Indian Valley, Nassau, Albany, Rhine- 

 beck, New Windsor, Staten Island. 



2. DREPANA Schranck 

 (Platypteryx Laspeyres) 



Fore wing falcate (fig. 436) below R 4 , with evenly sinuous outer margin; R = 

 long-stalked with Ra +4 ; M 1; arising separately from cell, hind wing with Sc and R 

 closely approximate beyond end of cell; humeral angle moderately enlarged, with 

 a weak but distinct frenulum; 3d A rudimentary. Antennae pectinate, narrowly 

 in female; palpi minute, tongue well-developed. 



