300 W. H. ASHIIEAD. 



sides distinct, finely pubescent above, but much heavier pubescent at sides; 

 scutellum coarsely rugoso-punctate, bifoveolate; mesopleurse almost black, upper 

 portion smooth and shining, lower longitudinally strigose; legs amber colored, 

 hairy, middle and anterior coxae black at base, posterior almost black, fringed with 

 long hairs behind, a strong tibial spur on forelegs, hind femora blackish along the 

 upper edges, with the tibiae more or less infuscated : abdomen smooth, reddish 

 brown, shining, segment of venter visible its whole length ; wings hyaline, veins 

 pale, tinged with yellow. 



Described from twelve specimens bred in July. 



C'EROPTRE!^ Hartig. 



C. obtusilobse Ashmead. 



%. Length .15 inch. Uniform light reddish brown, pubescent; head finely 

 punctate; thorax rather coarsely rugoso-punctate; antennae 13-jointed ; the ab- 

 domen is compressed, and the ovipositor projects considerably ; posterior tibiae and 

 first tarsal joint dark brown ; wings hyaline, with veins brown and somewhat 

 thickened. 



Described from two $ specimens bred from an unnamed gall on 

 Quercus ohtusiloha. 



C. citrifbrmiiS Ashmead. 



Length .04-.08 inch. Color : shining brown-black ; antennae 15-jointed in % , 

 14-jointed in J, and of a light brown color; parapsides distinct; abdomen dark 

 reddish brown, polished: legs uniform light yellowish; wings hyaline. 



Described from numerous specimens bred in 1881 from gall Amphi- 

 holips citriformis Ashm. I notice this guest fly makes a pseudo-gall on 

 the rind. 



C^ poiniforiiiis Ashmead. 



%. Length .05 inch. Slender; head yellowish brown, with a dark brown 

 blotch enclosing ocelli; eyes brown; antennae 15-jointed, yellowish, with the 

 apical third brown ; thorax black, finely pubescent ; abdomen bright yellowish 

 brown, infuscated towards tip; wings hyaline, veins yellow, radial area closed, 

 narrow. 



This pretty little species is described from two specimens bred from 

 gall Andricus pomiformis Bass., sent to me from California. 



C. virentis Ashmead. 



9 • Length .08 inch. Uniform yellowish brown ; head and thorax finely 

 punctured; eyes dark brown; antennae 14-jointed, brownish towards tip; wings 

 hyaline, veins pale yellowish. 



Described from specimens bred in 1881 from gall Andricus virens 

 Ashm. 



C succinipedis Ashmead. 



Length .05-07 inch. Brown-black, pubescent; antennae 14-jointed in $>, pale 

 yellowish; abdomen shining black, more or less rufous at base and surrounding 

 anus; wings hyaline, veins pale. 



Described from specimens bred 1881 from gall Andricus snccinipes 

 Ashm. 



