ART. 15. REVISION OF ICHNEUMON-FLIES MUESEBECK. 63 



pressed; first dorsal abdominal plate slender, decidedly narrower at 

 apex than at base, and more than three times as long as broad at apex, 

 mostly smooth and shining ; second abdominal tergite broad, and like 

 the following, smooth and polished ; membranous margins along the 

 first plate and the extreme base of the second, very broad. Black; 

 basal segments of both labial and maxillary palpi dusky, the remain- 

 der yellowish ; mandibles reddish-brown ; labrum testaceous ; tegulae 

 testaceous; the wing-bases spotted with blackish; wings very slightl;/ 

 infumated, the veins and stigma brown, the latter with an indistinctly 

 paler spot at base; fore and middle coxae brown; posterior coxae 

 blackish; remainder of legs yellowish-brown, the fore and middle 

 femora at base, and the posterior femora along the upper edge infus- 

 cated ; the middle and posterior tibiae and all the tarsi more or less 

 infuscated; abdomen black above and below; the membranous mar- 

 gins along the basal plates brown. 



Cocoons. — 4 mm. long ; cylindrical ; pergamentaceous ; not ribbed ; 

 light brown in color; solitary. 



Type locality. — Nashville, Tennessee. 



Paratype locality. — Brownsville, Texas. 



Type.—C?ii. No. 24005, U.S.N.M. 



Hosts. — Feltia gladiaria Morrison; F. amiexa Treitschke; cut- 

 worm. 



Described from two male specimens: one (type) reared from 

 Feltia gladiaria, May, 1913, at Nashville, Tennessee, by C. C. Hill, 

 under Webster No. 12398; the other (paratype) reared from F. an- 

 nexa at Brownsville, Texas, on June 18, 1914, by K. A. Vickery, 

 under Webster No. 5751. 



In addition to the type specimens there is in the National Collec- 

 tion the following material of this species : one specimen reared 

 from a cutworm, at Lafayette, Indiana, May 30, 1917, by J. J. 

 Davis; four from Victoria, Texas, J. D. Mitchell, Collector; many 

 specimens from the C. F. Baker Collection, bearing the state labels: 

 Colorado ; Arizona ; Alabama ; Kansas ; Louisiana. I have also seen 

 two specimens in Doctor Brues's collection, one from Pullman, Wash- 

 ington, and one from Lake Waha, Idaho. 



24. MICROPLITIS LATISTIGMUS, new species. 



Close to stHatus, from which it differs, however, in possessing a 

 distinct crenulate mesopleural furrow ; in the longer antennae ; in 

 the head being only weakly punctate and shining; and in the smooth 

 and polished third abdominal tergite. 



Feinale. — Length 3 mm. Face, including clypeus, very shallowly 



punctate and shining; vertex smooth, polished; temples and cheeks 



very weakly punctate and shining; antennae very long, considerably 



longer than the body; mesoscutum and scutellum entirely closely 



20107— 22— Proc. N. M. vol. 61 22 



