REVISION OF THE OECOPHORIDAE CLARKE 69 



margin concave and with well developed lateral lobes. Vinculum 

 broad with a pointed dorso-anterior process. Aedeagus long, curved, 

 terminating in a sharp slender point; basally there is a sclerotized 

 biramous arm by which tlie aedeagus articulates with the anellus. 

 Transtilla a narrow sclerotized band, with large, profusely hairy, 

 lateral lobes. Gnathos long, oval, slender, clothed with fine spines. 

 Socii broad fleshy lobes. 



Female genitalia. — Genital plate broad, lightly sclerotized; ostium 

 small oval, at posterior edge of genital plate. Ductus bursae mem- 

 branous, inception of ductus seminalis rather remote from ostium; 

 bursa copulatrix oval. Signum a small, more or less rectangular 

 plate, slightly cupped and covered with thornlike teeth. 



Alar expanse, 16-20 mm. 



Type. — In the Museum of Comparative Zoology, Cambridge, Mass. 



Type locality. — Easton, Pa. 



Food plant. — Parsnip; wild parsnip?. 



Dis-trihution. — Northeastern United States and eastern Canada. 



United States records 



Connecticut: $ (Beutenmiiller). 



District of Columbia: Chain Bridge, 5 ("2-4-85") ; Washington, 2 ("21-4-85"). 



Illinois: Putnam County, S (M. O. Glenn). 



Maryland: Plummers Ishmd, S (March 1908, H. S. Barber). 



New Hampshire: Hampton, S (IV-2G-04, S. A. Shaw). 



New York: Ilion, $ (IX-3-11, McBlhose) ; Ithaca, 2 9 9 (5-19-V-31, A. B. 

 Klots) ; Lockport, 9 (XI-30-35, L. L. Pechumau) ; Long Island: Orient, $ 

 (VII-27-26; Ray Latham) ; Montvale, 9 (November 26, 1923, F. M. Schott) ; 

 Rochester, 9 (3-IV-33, A. B. Klots). 



Pennsylvania: New Brighton, 12 $3,7 9 9 (March and July to November 

 dates, H. D. Merrick) ; Oak Station, Allegheny County, 2 9 9 (Oct. 15, 

 1908, and March 30, 1910, Fred Marloit) ; Pittsburgh, $ (IV-7-06, Henry 

 Engel). 



Vermont: Clarendon, $ (no date or collector). 



Wisconsin: Millwood County, $ ("X-14-08"). 



Canadian records 

 Ontario: Ottawa (VIII-21-05, C. H. Young) ; Toronto ("III-2 to 8-95"). 



Remarks. — Busck ^® pointed out that in all probability cle^rnemella 

 is distinct from the European applana. There can be no doubt about 

 the close relationship between the two species, but they can be separated 

 easily on genitalic characters as well as pattern. 



The ground color of applana is much lighter than that of clemrnsella; 

 in the former there is a tendency to coalescence of the discal spots, 

 whereas in the latter the spots are smaller and distinctly separated. 



The male genitalia of clemensella show a slender, gradually finely 



« Eusck, Proc. U. S. Nat. Mus., vol. 27, p. 766, 1904. 



