216 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 90 



Male genitalia. — Harpe long and slender, cucuUus pointed. Anel- 

 lus a lightly sclerotized plate with slender digitate lateral processes, 

 the latter not exceeding the posterior edge of the central plate. Ae- 

 deagus stout, sharply bent, sharply pointed; vesica armed with one 

 large, sharply pointed cornutus and a narrow, elongate patch of 

 smaller ones. Vinculum rounded with a well-developed, pointed 

 dorsoanterior process. 



Female genitalia. — Ostium large, oval. Genital plate membranous 

 except for a narrow, sclerotized anterior band. Ductus bursae di- 

 lated and strongly sclerotized before ostium, otherwise slender and 

 membranous; inception of ductus seminalis just before ostium. Sig- 

 num with 17-21 branches on each side ; signum-bearing half of bursa 

 copulatrix strongly spiculate. 



Alar expanse, 15-18 mm. 



rype.— U.S.N.M. No. 52866. 



Type locality.— Cuero, Tex. (September 13, 1910, M. M. High). 



Food plants. — Carya pecan Aschers. and Graebn. and Carya ovata 

 (Mill.) Koch. 



Remarks. — ^Described from the 5 type and 17 5 and 11 $ para- 

 types as follows: Cuero, Tex., % $ $ and 8 $ ? (June, July, and 

 September dates, 1910, M. M. High) ; San Antonio, Tex., 3 5 ^ 

 (July 14r-24, 1908, McMillan) ; Norfolk, Va., $ (September 13, 1910, 

 M. M. High), all reared from pecan; Winfield, La., $ (June 16-23) ; 

 Monticello, Fla., 3 5 5 (June 23, 1914, A. I. Fabis; April 8-9, 1915, 

 John B. Gill) reared from hickory. 



Paratypes in the U. S. National Museum, Canadian National, and 

 H. H. Keifer collections. 



With the exception of fetcherella this is the darkest species of the 

 genus described from North America. It may be distinguished from 

 ■fUetcherella by its smaller size and the larger number of branches on 

 each side of the signum. In female genitalia caryae more closely 

 resembles faginelhi from which it may be distinguished by the more 

 strongly sclerotized portion of the ductus bursae. 



PSILOCORSIS FLETCHERELLA Gibson 



Plate 40, Figuee 221 



Psilocorsis fletcJierella Gibson, Ottawa Nat., vol. 22, p. 226, 1909. — Barnes and 

 McDuNNOUGH, Check list of the Lepidoptera of Boreal America, No. 6431, 

 1917.— Forbes, Cornell Univ. Agr. Exp. Stat., Memoir 68, p. 236, 1923. 



Vrypfolechia fletcherella (Gibson) RIetrick, in Wytsman, Genera insectorum, 

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

 Canada and the United States (Part 2, Microlepidoptera ) , No. 8470, 1939. 



Cryptolechia quercicella Gibson (not Clemens), Can. Ent., vol. 40, p. 84, 1908. 



Palpus, exclusive of the usual dark stripes, whitish ochreous. Head, 

 thorax, and fore wing yellowish strongly overlaid with brown and 



