ABT. 24. NEW REARED PARASITIC HYMENOPTERA GAHAN. 3 



infumated wings and the absence of any black on head and 

 thorax. 



Female. — Length 2.8 mm. Frons and face weaklj^ shagreened, 

 subopaque, remainder of head and thorax polished; antennae 29- 

 jointed in the type ; first flagellar joint two and one-half to three times 

 as long as thick, joints near apex about twice as long as thick ; pro- 

 podeum mostly polished, the posterior middle obscurely wrinkled 

 and with a short stub of a median carina at apex ; first radial abscissa 

 of forewing equal to less than half the second, third abscissa longer 

 than first and second combined; abdomen about equal in length to 

 the head and thorax, slightly broader than the thorax, long ovate in 

 outline; first tergite smooth anteriorly with a prominent, embossed, 

 faintly rugulose area at apical middle and on each side of this at the 

 posterior lateral angles of the tergite an oblong, depressed, rugulose 

 area set off by carinae and extending approximately from the mid- 

 dle to the posterior margin of the tergite; second and following ter- 

 gites distinctly though rather weakly and nearly uniformly sculp- 

 tured, more or less shining, suturiform articulation not angulated at 

 the middle though slightly sinuate, not especially deep, and scarcely 

 at all crenulate; ovipositor exserted very nearly the length of the 

 abdomen. Head, thorax, abdomen, and legs dark reddish testaceous; 

 eyes, antennae, apical joint of all tarsi and ovipositor sheaths black; 

 tips of mandibles, maxillary palpi and hind tibiae at apex usually, 

 slightly inf uscated ; wings slightly infuscated, the infuscation stronger 

 on basal half; wing veins blackish; stigma brownish-yellow, becom- 

 ing blackish apically. 



Male. — Slightly smaller, but otherwise similar in all respects to the 

 female, except that the antennae of the allotype are 31-jointed. 



This species, as shown by the type series, is variable in several re- 

 spects. The number of antennal joints ranges from 29 to 33, the 

 sculpture of the tergites is slightly heavier in some specimens than in 

 the type, while the length of body ranges from 2 mm. to 3.6 mm. 

 The female paratype from Champaign, Illinois, which is the largest 

 specimen in the type series, has the propodeum and a large part of 

 the mesosternum piceous. 



Type locality. — Urbana, Illinois. 



Type.—Q';it. No. 24982, U.S.N.M. 



The type female, five paratj'pe females, and five male paratypes 

 received from D. J. Caffrey, under Accession No, 3305, were reared 

 from Pyrausta ainsliei Heinrich, collected at Urbana, Illinois, July 

 10, 1919, by W. P. Flint. The allotype male is from the same host 

 collected at Champaign, Illinois, by C. W. Knapp, November 25, 

 1916, and bears Accession No. 6638-J. A male and a female para- 

 type bear the same data, except the date November 21, 1919, and the 

 Accession No. 2297-B. Also four females and three males reared 



