S [April 



rccun-tMit nervure : 2nd nerwire coinciding with 2nd submarginal cross nervure. 

 Pennsylvania. (Coll. Ent. Soe. Pliilad.) One specimen. 



1 1 . Nematus brunneus, n. sp. 



Head and thoi'ax brown, abdomen and legs yellowisli, wings hyaline. (Long 

 0.26. Br. wing.s 0.fi2 in.) 



9. C(dor oohr(» brown; antennre black, about half the length of body. .3rd 

 joint a little longer than 4th. a sort of W shaped depression above ocelli, lower 

 ocellus in a flat, obovate distinctly enclosed space, not connected with the groove 

 on the ridge between antenn<i>, wliich is very narrow: nasus incurved: edge of 

 labrum almost square : head and thorax ochre dark lirown ; mouth, tegula;, 

 anterior angle, basal plates, abdomen and most jiart of legs, yellowish : tips of 

 posterior tibice and their tarsi fuscous: winge faintly smoky, stigma and costa 

 jiiile, 2nd submarginal with two angles beneath. 



Rocky Mountains. Col. Ter. (Coll. Ent. Soc, Philad.) One female. 



12. Nematus erythrogaster, n. sp. 



Black; the collar and abdomen except at base above, rufous: wings clear. 

 (Long 0.28. Br. wings 0.60 in.) 



9. Shining black: antennae more tlian half the length of body, slender, 

 joints not enlarged at tips, 3rd longer than ith. ; head rugose with a large de- 

 pression, triloliate below, enclosing ocelli : nasus moderately incurved, labrum 

 j)iccous ; apical lialf of mandibles rufous ; tegulfe, a triangle on collar, and the 

 al)domen, except the two basal segments rufous; legs varied, the coxfe, tro- 

 chanters, intermediate tibiae and tarsi and a band at the base of the hinder 

 tibite, white, the four hinder femora and a]>ex of intermediate tibiae rufous ; 

 tips of hinder femora, apical two-thirds of their tibiie and the tarsi, lilack : 

 wings perfectly clear, stigma fuscous, costa ])ale. 



Massachusetts. (Coll. Ent. Soc. Philad.) One specimen. 



The anterior less are wautins'. 



Genus MESSA. 



1 3. Messa hyalina, n. sp. 



Black, with white tegulae and legs, and clear wings. (Long O.Ki. Ri-. wings 

 0.36 in.) 



5 . Shining black ; antennae slender, longer than beyond the base of abdo- 

 men, setaceous, 1st joint longer than 2nd, 3rd longer than 4th; head polished, 

 rounded, almost smooth about the ocelli: nasus slightly incurved: labrum 

 wide, rounded, and, with the mandibles at base and the tegulae, white; abdo- 

 men somewhat stout and acute ; legs white, the coxae black, except at tijj, pos- 

 terior femora with a reddish tinge, tips of their tibite blackish ; wings j^erfectly 

 transparent, stigma almost wholly white: 1st submarginal somewhat rounded. 

 3rd almost square : 2nd recurrent nervure almost coinciding with 2nd su>)nLar- 

 ginal cross nervure: lanceolate cell j'Ctiolate ; underwings with two middle 

 cells. 



New Jersey. (Coll. Ent. Soe. Philad. 1 One specimen. 



