No. 22.] HYMENOPTERA OF CONNECTICUT. ^67 



punctate, its angles tipped with yellow; no reddish spot above 

 the mid coxae and trochanters which are almost entirely yellow- 

 ish, mid tibiae without a trace of an annulus, hind legs with the 

 coxae and femora reddish throughout and their trochanters 

 yellow, hind tibiae with the apical third blackish. Second to 

 sixth dorsal abdominal segments, inclusive, sometimes with a 

 subapical, transverse, medially more or less interrupted stripe. 



Type locality: New Haven, April 20, 1910 (A. B. C). Reared 

 from spider egg-sacs on nursery stock imported from Europe. 

 Type: Cat. No. 15035, U. S. N. M. 



(For key to other species of this genus, see page 318.) 



Xylophruridea Viereck. 



Related to Cryptus Fabricius. 



Mandibles not gibbose at base, notauli indicated only ante- 

 riorly, propodeal spiracles round. The sternauli in this genus are 

 very poorly defined, so that this might be taken to be a relative 

 of Xylonomus Gravenhorst, were it not for the traces of sternauli. 



X. luctuosus (Provancher), X. agrili Viereck. Mesocho- 

 rus luctuosus Provancher. Echthrus luctuosus (Provancher). 



Female and male: length, 8 mm.; flagel, 20-25 jointed, an- 

 tennae usually with a whitish annulus; body including most ap- 

 pendages black or blackish ; wings mostly almost colorless, tinged 

 with brown, with a brownish substigmal band and brownish tips, 

 veins brownish and blackish, stigma blackish; basal transverse 

 carina present, other carinae virtually wanting, the median 

 longitudinal carinae somewhat represented between the basal 

 transverse carina and base of propodeum, making an ill circum- 

 scribed basal area; exserted portion of ovipositor hardly half as 

 long as the abdomen. 



Reared from Agrilus vittaticollis in West Virginia, by F. E. 

 Brooks. Reared from galls of Agrilus champlaini on Ostrya vir- 

 ginica, collected at Lyme, 11 April, 1912, by H. B. Kirk. 



CYNIPOIDEA. 



CYNIPID^. 

 Cynips cristata Stebbins. Oak tufted gall. 

 Insect Galls of Springfield, Mass., and vicinity, Bulletin 2, 

 Springfield Museum of Natural History, page 24. 



