510 PROCEEDINGS OF THE NATIONAL MUSEUM. yoi.. os. 



ftropodeiim with a very sharply margined short and broad areola, 

 also with strongly elevated costiilae and lateral longitudinal carinae, 

 the areas between the ridges wealdy punctate and strongly shining; 

 radius of forewing only slightl}^ longer than transverse cubitus and 

 uniting with it in an even curve ; posterior coxae smooth and shining ; 

 inner spur of posterior tibiae longer than the outer, but not half as 

 long as the metatarsus; abdomen almost as long as the thorax, and 

 very broad ; first tergite large, parallel-sided, or very slightly broader 

 at apex than at base, a little longer than broad, and coarsely rugose, 

 with a large shining median longitudinal fovea on the apical half; 

 second tergite short and broad, more than four times as broad at 

 apex as long down the middle, and longer medially than at the sides, 

 the posterior margin being arcuate, this tergite very feebly ruguiose ; 

 suturiform articulation broad and foveolate; remainder of the abdo- 

 men very smooth and shining; ovipositor sheaths about as long as 

 the abdomen. Black; scape yellowish; wings hyaline, the veins 

 brown ; legs, except all coxae, which are black, and the apical third 

 of the posterior femora, apical half of posterior tibiae, and the pos- 

 terior tarsi, which are blackish, testaceous; venter of the abdomen 

 black ; ovipositor sheaths black. 



Type locality. — College Park, Maryland. 



Type.— Cat. No. 22518, U.S.N.M. 



Host. — (?) Acrohasis caryae Grote, on English walnut. 



One female specimen reared by A. B. Gahan, August 17. 1912. 



20. APANTELES ENSIGER (Say). 



Microgaster ensiger Say, Boston Journ. Nat. Hist., vol. 1, pt. 3, 1S36, p. 260 ; 

 LeConte, Writ, of Th. Say, Entom., vol. 2, 1859, p. 711. 

 Apanteles nipmuckorum Viekeck, Bull. 22, Conu. State Geol. and Nat. 

 Hist. Surv., 1916, pp. 191, 200. 



Habitat. — Indiana ; Illinois ; Connecticut ; New York ; District of 

 Columbia; New Hampshire; Canada. 



Host. — (?) Crambus zeellus Fernald. 



The type of this species has been lost, but there is probably no 

 doubt as to the identity of the species. A female specimen in the 

 United States National Museum, bearing Ashmead's label, upon 

 which there is a neotype notation by Viereck, has been considered 

 typical by the writer. There can be no question that nipmuckorum 

 Viereck is ensiger Say. 



The National Collection contains specimens from the following 

 localities: Long Island and Oswego, New York; Ottawa, Canada; 

 Washington, District of Columbia; Algonquin, Illinois; and Mount 

 Washington, New Hampshire. One specimen bears the number 

 3679° and is labeled as having been reared from CramJnis zeellus 

 Fernald, June 22, 1888. 



