552 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 5b. 



the sides bulging siighth% hardly one and one-half times as long as 

 broad at apex, uniformly rugose; second tergite trapezoidal, as broad 

 at base as first tergite is broad at apex, and broader at apex than at 

 base, like the first tergite uniformly rugose and opaque; remainder 

 of the abdomen smooth and shining, except for very slight roughen- 

 ing at the base of the third tergite; lateral membranous margins 

 along the apical half of the first tergite and the entire length of the 

 second rather broad; ovipositor subexserted. Black; antennae 

 blackish, except the scape, which is somewhat pale beneath ; tegnlae 

 black; legs entirely testaceous, except the base of all coxae, and the 

 apex of the posterior femora and tibiae, and most of the posterior 

 tarsi, which are dusky ; lateral membranous margins on the two basal 

 abdominal tergites, also the venter of the abdomen on the basal half, 

 testaceous ; wings hyaline, with the stigma and veins pale brown. 



Male. — As in the female, except that the antennae are considerably 

 longer than the body, and the coxae are usually more blackish. 



Cocoons. — Small, white, gregarious, but not inclosed in a mass of 

 silk. 



Type locality. — Prince Georges County, INIaryland. 



Type.— Cut.' 1^0. 22540, U.S.N.M. 



Described from many specimens of both sexes parasitic on various 

 species of Pyralidae; specimens in the United States National Mu- 

 seum are recorded from N omophila noctuella Denis and Schiffer- 

 mueller ; Pyrausta futilalis Lederer ; and Loxostege similalis Guenee. 



121. APANTELES PALEACRITAE Riley. 



Apanteles paleacritac Riley, Trans. Acad. Sci. St. Louis, vol. 4, pt. 2, 1881, 



p. 313. 

 Protapanteles ephyrae Ashmead, Proc. Ent. Soc. Wash., vol. 4, 1897, p. 163. 



Habitat. — Illinois; Canada; New Hampshire; Massachusetts. 



Hosts. — {Paleacrita) Nyctohia anguilineata Grote and Eobinson 

 (Riley) ; Cosymbia lumenaria Huehner (Ashmead) ; AJsopMla pome- 

 taria Harris. 



A careful study of the types of paleacritae and ephyrae shows be- 

 yond question that they are identical. 



Besides the type material the National Collection contains one 

 specimen from Bentonvilie, Arkansas, reared by D. Isely under 

 Quaintance No. 16355, said to have been parasitic on the canker 

 worm. 



122. APANTELES EUCHAETIS Ashmead. 



Apanteles euchaetis Ashjiead, Proc. Ent. Soc. Wash., vol. 4, 1897, p. 159. 

 Habitat. — New Hampshire; Massachusetts; Illinois; Virginia. 

 Host. — Euchaetias egle Drury (Ashmead). 



Cocoons. — White, gregarious, packed inside the cocoon of the host. 



In addition to the type series the National collection contains one 



specimen of this species labeled as having been bred from Euchaetias 



