4:58 WILLIAM T. M. FORBES 



.'!. Transverse linos .single, narrow, covering less than a third of the surface 



of the wing 1. buoliana. 



.1. Transverse lines strongly doubled, covering more than a third of the 

 surface of the wing. 



4. Tormina! band with a yellow band before it 3. rigidana. 



4. Terminal band preceded immediately by the outermost gray stria. 



.1. Base heavily striate with gray 6. comstockiana. 



5. Base red-brown with a few whitish strise. 



6. Basal line in fringe red 7. virginiana. 



6. Basal line in fringe black 8. albicapitana. 



I. M 2 straight, connate or stalked unth M 3 . Larvce in buds; group vii with three 



setae (Rhyacionia). 



1. R. buoliana Schiffermiiller. Bright orange, typically irregularly shaded with 

 yellow, with six or eight narrow anastomosing pale silver-gray transverse lines, 

 slightly edged with white at costa only. Fringe light gray-brown, with a blackish 

 line formed by bars near the tips of the first row of 'scales. Hind wing light 

 gray-brown, with pale fringe. Head yellow and tegulse red with powdery gray 

 tips'. 18-26 mm. 



The larva bores in the tips of pine shoots, causing them to grow crooked. 

 Europe ; occasionally introduced in nurseries. New York : Great Neck, West- 

 brook, Nassau, and Lynbrook, Long Island. 



2. R. frustrana Comstock. Ground deep red, changing from crimson to red- 

 brown, the thorax and base of wing shaded with blackish. Outer part of wing 

 with four broad bands of silver-gray, obscurely divided by series of blacker scales, 

 the last series terminal, except toward the apex, where it forks and one branch 

 runs subterminally to the costa, the other remaining terminal, but falling short 

 of the apex; sometimes with whole apical region gray, or with the gray broken 

 into three bands, the uppermost one crossing the apex. Ground mottled with 

 yellow patches, the dorsal half of the median area usually solid yellow, but with 

 a narrow antemedial band toward costa. 10-13 mm. 



Larva boring in terminal and lateral shoots of scrub pine and dwarfing them. 

 Nantucket, Massachusetts, to Florida and Texas; a larger race in the south- 

 west. New York: Ithaca (Comstock). Karner (Felt). 



3. R. rigidana Fernald. Fore winjj similar to R. frustrana, the gray bands nor- 

 mally more extensive, the whole medial area whitish. Last gray band subterminal, 

 followed by a yellow stripe and then a red terminal line. Fringe reddish purple. 

 18 mm. 



April. Larva with the habits of R. frustrana, and apparently commoner inland, 

 on Pinus rigida. 



This species can be certainly separated from R. frustrana only by the genitalia. 

 New York to North Carolina. New York: Ithaca (Fernald). 



4. R. busckana Heinrich. Grayish fuscous barred with gray -white. Head and 

 thorax concolorous, the head with some reddish in vertex. Fore wing with outer 

 fourth red, less on inner margin than at costa; a red terminal line and gray fringe. 

 Hind wing smoky. 15 mm. 



April. 



New York to Pennsylvania. New York: Bellmore and Central Park, Long Island. 



5. R. adana Heinrich. Similar to R. busckana; but with the reddish outer part 

 invading the outer half of the inner margin, especially the region of the fold. 

 17 mm. 



End of March and early April. 

 Massachusetts to Virginia, 



