398 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxv. 



single haired, directed backward; vii with three hairs on the leg base, 

 one stronger than the others; no secondar}^ hairs, the skin finely 

 granular. On the thorax tubercles ia and ib united, iia+iib, iii + iv+v, 

 vi double. No shield, but six setse in two rows, three on the prespi- 

 racular wart and two on the subventral. 



The pupa is winged as in O. j^erisdidactylus Fitch. 



Larvjfi on the wild grape in the Platte Canyon, June 1, moth out 

 June 11. The larvte were mature when found and readj^ to pupate, 

 but there was no sign on the plants of spun up leaves, such as the 

 allied species makes. 



The specimens were at first determined as 0. feriscelidactylus^ as 

 the}' agree with a moth so labeled by Professor Fernald, bred at the 

 Department of Agriculture on- grape (No. M40). The wide dissimi- 

 larity of the larvfe ( O. periscelidactylus has warts and secondary hairs) 

 led me to reexamine the moths. 0. delmvarieus is extremely similar 

 to O. periscelidactylus, much more so than the descriptions by Wals- 

 ingham and Fernald would imply. It is smaller, the palpi are shorter, 

 the antenna^ completely white ringed, and the space between the white 

 lines on the feathers of the fore wing is dark brown, contrasting with 

 the rest of the wing. Otherwise I see no differential characters. 



The following are the notes made at the Department of Agriculture 

 on the number 4440, above referred to: 



May 29, 1889. Tortricid? on grape from J. B. Schfeffer, Deward, Pennsylvania. 

 Larvfe uniformly greenish yellow with darker median line and somewhat paler head. 

 The hairs arising from the warts are long, rather coarse, and colorless. * * * 

 They remind one of Nola. Moths issued June 9-11. 



PTEROPHORUS SULPHUREODACTYLUS Packard. 



Larva. — Thick, flattened, tapering at the ends; feet normal, slender. 

 Head rounded, bilobed, the apex under joint !:i, mouth projecting; 

 width about 1.2 mm.; black, the sutures broadly brown. Body with- 

 out secondary hairs, the warts low and ditiuse; i with three or four, 

 ii with one hair, these warts somewhat approximate; iii with several 

 hairs; a group of six hairs on the subventral fold without wart and a 

 hair posteriorly in line, absent on some segments; several hairs for 

 tubercle vi. Olivaceous green, a broken, broad, sordid white sub- 

 dorsal line along warts i and ii with four black dots on each segment 

 between in a square, becoming black blotches on the posterior seg- 

 ments. Wart iii pale; spiracles black; skin finely dark granular; 

 cervical shield l)lackish, hairy; thoracic feet black, the abdominal ones 

 pale. Hair white, minutel}^ glandular tipped; segments obscurely 

 2-annulate; a black impressed lateral dot in the middle of the segment. 



The larvte were found webbing up the young heads of a wild sun- 

 flower, Ilelianthvs 2:>aniilus, and feeding within the spun mass. They 

 occurred on the foothills near Boulder Creek Canyon. Spun among 

 dead leaves; emerged June 10. 



