280 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 58. 



Body pale fulvous with small dark markings on occiput and on 

 tergites beyond first; legs stramineous, hind femur slightly testaceous, 

 tibia at base and apex and tarsus fuscous; wings hyaline. 



Male. — Differs from female practically only by the secondary 

 sexual characters of more slender abdomen and stouter hind femur 

 with larger tooth placed nearer the middle and distinct denticles. 

 The ocelli are not noticeably larger than in female. 



Tyjye locality. — Washington, District of Columbia. 



Other localities. — Raleigh, North Carolina (allotype) and Columbia, 

 South Carolina. 



Type.— Cat. No. 22865, U.S.N.M. 



Described from one female and two males. The allotype was 

 received from Gerald McCarthy and reared from a Gelechia on tobacco 

 under Bureau of Entomology No. 70880 ; and the paratype by P. Lugin- 

 bill from Elasmopalpus lignosellus, under Webster No. 9742. 



The paratype is brighter in color throughout and the legs testa- 

 ceous rather than stramineous. 



PRISTOMERUS (NEOPRISTOMERUS) APPALACmANUS Viereck. 



Pristomerus appalachianus Viereck, Trans. Kans. Acad. Sci., vol. 19, 1903-1904, 



p. 298, female, male. 

 Pristomerus texanus Ashmead, in Sanderson, Bur. Ent. Bull. 57, 1906, p. 36 



(nomen nudum). 

 Neopristom£rus appalachianus (Viereck), Proc. U. S. Nat. Mus., vol. 43, 1912, 



p. 592. 



This species is represented in the national collection by a con- 

 siderable series, mostly of the variety dorsocastaneus Viereck, from 

 Kansas, Oklahoma, Texas, New Mexico, and Louisiana. It is reared 

 from such hosts as Prodenia species, Caradrina exigua, Loxostege 

 species, and Laphygma frugiperda. There is considerable variation 

 in size and color. 



The variety dorsocastaneus was described m the same paper as the 

 typical form and transferred to Neopristomerus also in the same paper. 



OLIGOTMEMA, new genus. 



The following description is based only on the female, the male 

 being unknown. Has somewhat the appearance of a small Hemite- 

 line and also of Canidia in the Campoplegini; but the very short basal 

 abscissa of radiella, separated clypeus, and closed areola indicate its 

 Cremastine affinities. In the very short radial cell it resembles the 

 Porizonini, but the angle of the radius is not acute, the apical abscissa 

 of radius curves forward toward the metacarpus, the basal vein is 

 not thickened at its stigmal end, and the ovipositor is straight or 

 slightly decurved. 



From all the other genera here referred to the Cremastini it differs 

 in the form of the abdomen. This is short, deep, and broad, broadest 

 at apex of second tergite, which is beyond the middle of the abdomen 



