NORTH AMERICAN HYMENOPTERA. 301 



C laiijgerse Ashmead. 



Length .08-. 10 inch. Red-brown, punctate; eyes dark brown; antennse 13- 

 jointed, yellowish; mesoscutum infuscated along the anterior edge; abdomen 

 darker along the sides; legs light reddish brown, with feet paler, and the posterior 

 femora and tibife brown ; wings hyaline, veins pale. 



Described from specimens bred from gall Andricus lanigera Ashm. in 

 1881. 



C minutissiiiii Ashmead. 



Length .04-. 06 inch. Head and thorax dark brown or shining black, rugoso- 

 punctate; antennse long, 15-jointed in % , 13-jointed in 9; yellowish, with slight 

 reddish tinge, the apical joint is thickened and twice as long as the penultimate; 

 legs honey yellow; abdomen black, shining; wings hyaline, veins yellow; the 

 valve of the ovipositor is long and jDrojects considerably above the upper surface 

 of the abdomen. 



Described from many specimens bred from gall Neuroterus minutissi- 

 mus Ashm. 



C. Catesbaei Ashmead. 



Length .06-.08 inch. Black, shining, and resembles minutissimi very much, 

 but, however, is readily distinguished 'from it by its much paler yellow colored 

 antennse and legs, coarser sculpture of the thorax and scutellum, and by the ab- 

 domen, which is testaceous at base and along the venter beneath. 



Described from many specimens bred from gall And^-icus Catesbaei 

 Ashm. 



!§iY]!VER€iUS Hartig. 



S. ficigerse Ashmead. 



Length .08-. 14 inch. Head and thorax reddish brown, punctate, the punctures 

 coarser on thorax, slightly pubescent; antennse 13-jointed in 9, 15-jointed in %, 

 yellowish ; abdomen yellow, testaceous, with a large black blotch on disc ; legs 

 yellowish, posterior tibiae brown along the upper edge; wings hyaline, veins 

 brown. 



This species approaches nearest to S. lignicola 0. S., but is easily dis- 

 tinguished from it by its smaller size and brownish head and thorax. 



Described from seven specimens bred from gall Ilolcaspis ficigera 

 Ashm. in 1 881. 



S. coiiiferse Ashmead. 



Length .10 inch. Reddish brown, punctate and finely pubescent, the pubescence 

 being quite thick on the face; antennse 14-jointed, reaching to base of abdomen ; 

 thorax transversely wrinkled with parapsides distinct; abdomen at base testace- 

 ous; posterior femora and intermediate and posterior tibise along upper edges 

 brown; wings hyaline, veins pale. 



Described from numerous specimens bred from gall Cynips conifera 

 Ashm. 



S. batatoides Ashm. 



Length .12-. ]4 inch. Head, antennse and legs yellowish; head punctate with 

 a brown blotch on vertex; antennse short, 14-jointed in J, 15-jointed in %, 



