276 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 58. 



of lateral ocellus, postocellar and ocell-ocular lines subequal; thorax 

 doi-sally opaque, mesoscutum sliagreened and punctate; pronotum 

 polished, rugulose in impressions; mesopleura and metapleura sub- 

 polished and punctate, punctures on mesopleura rather coarse and 

 well separated; fossa in front of scutellum deep, the scutellum nearly 

 carinate in front; propodeum densely punctate dorsally and later- 

 ally, rugose posteriorly, areola pentagonal, somewhat more than twice 

 as long as wide, costulae very near cephalic end; femoral tooth short, 

 at about apical two-fifths, denticles absent, the femur slightly less 

 than a third as thick as long; stigma nearly two-thirds as wide as 

 long, radius at apical third; nervulus distinctly postfurcal; second 

 and third abscissae of discoideus equal in length; nervellus slightly 

 broken, wealdy inclivous; postpetiole and second tergite finely 

 striate, othere obscurely shagreened, second nearly twice as long as 

 wide at base, the sides widely divergent, ovipositor four-fifths as 

 long as abdomen. 



Head black, face, orbits, cheeks, clypeus, and mandibles fulvous; 

 antennae black, scape and pedicel fulvous beneath; thorax black, 

 prescutum and scutellum red, notauli faintly reddish; tegulae and 

 wing bases yellow; wings infumate hyaline; legs fulvo-testaceous, 

 hind trochanters dorsally at base piceous, second joint and apex 

 of femur yellow, tibia and tarsus fuscous, tibia pale in middle, calcaria 

 yellow; abdomen piceous, all tergites except firet yellow at apex and 

 more reddish laterally, first with postpetiole reddish. 



Male. — Differs from the female in having the tergites relatively 

 narrower and the hind femur stouter, with the tooth larger and at 

 the apical third and the denticles well developed. 



Type locality. — Onaga, Kansas. 



Other localities. — Chain Bridge, District of Columbia; Oswego, New 

 York. 



Type.~Cat. No. 22861, U.S.N.M. 



Described from six specimens, the type and allotype from the type 

 locality (Crevecoeur) ; a female, paratype a, from Chain Bridge, Dis- 

 trict of Columbia, September 15, 1912 (J. R. Malloch); and three 

 males, paratypes c, d, and e, from Oswego, New York, August 27, 1896. 



All of the paratypes have the face more or less marked with black- 

 ish. The color of the abdomen varies somewhat, especially that of 

 the first tergite which varies from entirely red to entirely piceous. 



PRISTOMERUS (PRISTOMERUS) OLAMONUS Viereck. 



Pristomerus olamonus Viereck, Hym. Conn., 1917, p. 274. 



Described only by color and the length of the ovipositor, it can not 

 be placed in the key to species. What characters are given by 

 Viereck are very suggestive of fuscipennis Cushman, except that the 

 color pattern is brown rather than fulvous and reddish. 



