278 rKOCEEDINGS OF THE NATIONAL MVHEUM. vol.08. 



distinct; longer liind calcarium reaching only one-third length of 

 basitarsus; abdomen polished, postpetiole, second tergite, and base 

 of third striate; second tergite nearly as long as first, twice as long as 

 basal width. 



Ferruginous; mandibles, palpi, tegulae, petiole, and apices of second 

 and following tergites yellow; occiput (largely), ocellar triangle, pro- 

 notum dorsally, prescutum anteriorly, propodeum basall}^, post- 

 petiole, second and third tergites largely, and others dorsally blackish 

 or piceous; front and middle legs pale testaceous, their coxae and tro- 

 chanters stramineous; hind legs darker, coxae, trochanters and femora 

 within, tibiae at base and apex, and tarsi except at base fuscous, 

 femur at apex, tibia in middle and tarsus basally wdiitish; wings 

 hyaline, veins and stigma black. 



Type locality, — Pyziton, Clay County, Alabama. 



Other localities. — Langdale, Chambers County, Alabama; Lexington, 

 Kentucky; Marshall Hall, Maryland; North East, Pennsylvania; 

 Lawrence, Kansas. 



Type.~CB,t. No. 22863, U.S.N.M. 



The male differs principally in having the ocelli touching the eyes 

 and the latter very strongly divergent below; the thorax polished and 

 practically impunctate; the hind femur very stout with the large tooth 

 in the middle and the denticles conspicuous. 



Described from three females — two from the type locality and one 

 from Langdale, Alabama — all collected by H. H. Smith; and four 

 males, one from each of the last four localities mentioned. The 

 Maryland specimen, which is the allotype, is said to have been 

 reared from stems of Pohjninia uve.dalia infested by the weevil Rhodo- 

 haenus 13-punctatus. 



PRISTOMEKUS (PHISTOMERLS) AGILIS (Cressun). 



Porizon? agilis Cresson, Trans. Amer. Ent. Soc, vol. 4, 1872, p. 175, female. 



Pristomerus euryptychiae Ashmead, Trans. Amer. Ent. Soc, vol.23, 1896, p. 192. 



Pristomeridia agilis (Cresson) Ashmead, Proc. U. S. Nat. Mua., vol. 23, 1900, p. 100. 

 The types of both Cresson 's and Ashmead 's names are in the 

 United States National Museum, the latter without the abdomen. 

 In addition there are many specimens of both sexes ranging from 

 Texas and Kansas through Alabama, Kentucky, West Virginia, 

 District of Columbia, Maryland, and Massachusetts. The position 

 of the femoral tooth varies with size, the smaller the tooth the nearer 

 to the apex. In no case except in the male, is it nearly at the middle. 

 There is considerable variation also in the length of the ovipositor 

 and the relative length and width of the second tergite. 



Many of the specimens have been reared by A. B. Gahan at College 

 Park, Maryland, probably from Acrohasis caryae; by S. W. Bilsing, 

 at College Station, Texas, from Acrohasis caryaevorella; by J. D. 



