REVISION OF THE OECOPHORIDAE — CLARKE 213 



Female genitalia. — Genital plate narrow, membranous except for 

 a broad, sclerotized, anterior band. Ostium round. Ductus bursae 

 membranous except for a large dilated, partially sclerotized portion 

 immediately preceding the ostium; ductus seminalis spiculate on 

 inner surface and entering ductus bursae just anterior to ostium. 

 Branches of signum 22-24 on each side; signum-bearing half of 

 bursa copulatrix spiculate. 



Alar expanse, 18-25 mm. 



Type. — In the Academy of Natural Sciences of Philadelphia. 



Type locality. — "Pennsylvania." 



Food plant. — Unknown. 



Distribution. — Eastern United States. 



United States records 



District of Columbia: S, $ ("1906," A. Busck) ; 5 (May 19, 1902, A. Busck) ; 



$ (Sept. 20/34, no collector) ; 9 (6-15-06, Charles R. Ely). 

 Illinois: Putnam County, $ (13-VI-1936, M. O. Glenn). 

 Maine: Mount Desert (May 24). 

 Maryland: Plummers Island, $ (June 1903, A. Busck); 2 55 (1903, 1904, 



Barber and Schwarz). 

 Massachusetts: Boston, 5 (Beutenmiiller) ; Cohasset, $ (July 6, 1909, Owen 



Bryant). 

 New Hampshire: Hampton, $ (6-9-1904, S. A. Shaw). 

 New Jersey: Anglesea, 6 $ $, 2 5 5 (3-3O-V-1905, W. D. Kearfott) ; Essex 



County Park, 2 S $ ("May 20" and "6-19-99," W. D. Kearfott) ; Greenwood 



Lake, $ ("V-30," W. D. Kearfott). 

 New York: $ ("1906," Walsingham) ; $ (Beutenmiiller). 



Pennsylvania: Beaver County ,$, 5 (May, 1900, Kemp) ; New Brighton, 13 

 $$,7 5 5 (May and June, 1902-1906, H. D. Merrick); Pittsburgh, 

 5,25 5 (VII-12-06; VI-11-05, Henry Engle). 

 Virginia: Mountain Lake, $ (June 14-21, 1907, A. F. Braun). 



Remarks. — In addition to the above I have before me a single male 

 from Putnam Company, 111. (13 June 1936, M. O. Glenn), which 

 appears to belong here. The specimen is, however, heavily overlaid 

 with fuscous scales and may be another species. 



This is the largest species of this genus from North America and 

 is usually readily recognized by its size. It is the only described 

 species for which we have no definite host record. 



PSILOCORSIS FAGINELLA (Chambers) 



Plate 22, Figxjke 134 ; Plate 40, Figuees 217, 218 



Hagno faginella Chambers, Can. Ent., vol. 4, p. 131, 1872; vol. 6, p. 131, 232, 

 1874. 



Crypt olechia faginella (Chambers) Chamdees, U. S. Geol. Geogr. Surv. Terr. 

 Bull. 4, p. 84, 120, 137, 1878. — Meyrick, in Wytsman, Genera insectorum, 

 fasc. 180, p. 197, 1922.— McDuNNOUGH, Check list of the Lepidoptera of 

 Canada and the United States of America (Part 2, Microlepidoptera), No. 

 8472, 1939. 



