484 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



legs mostly pale fuscous, coxae green, trochanters yellow, mid and 

 hind tarsi straw color, their apex fuscous ; wings subhyaline, sub- 

 costa of front wings maculated with fuscous, veins usually fus- 

 cous ; abdomen cyaneo-cupreous, shining, glabrous, aenous 

 green at base. 



Listed as an American parasite of the cosmopolitan fruit-, 

 bark beetle (Scolytus rugulosus). 



Epistenia Westwood. 

 This and the following genus are referred to a separate 

 family, the Cleonymidae, in Ashmead's classification. 



E. osmiae (Ashmead). Dasyglenes osmics Ashmead. 

 Female : length 6 mm. ; cyaneous, coarsely pitted, brownish 

 pubescent ; flagel brown ; legs dark red, pubescent, femora infus- 

 cated; wings hyaline, veins brown. 



Reared from a mason bee, Osmia, living in catalpa twigs. 



Chiropachys Westwood. 



C. colon Linnaeus. 



Female: head and thorax deeply punctate, dull cupreous, 

 slightly tinged with green ; antennae dark brown, first and second 

 joints ochreous; wings iridescent, anterior ones each with two 

 dark brown spots (one near the center, the other near the tip) 

 passing through the furcate vein, these spots not so large as in 

 the male, and varying in size ; legs ochreous, the mid and posterior 

 femora shaded pitchy; size variable; abdomen smooth and shin- 

 ing, dark cyaneous black, tinged with dark green, its basal seg- 

 ments brighter green, its apex slightly pubescent. Male: may 

 be larger than the largest female ; color of thorax varying from 

 bright green to obscure blackish green. 



Listed as an American parasrte of the cosmopolitan fruit-bark 

 beetle (Scolytus rugulosus). 



spalangiid;e. 



Key to Genera. 



Body very slightly metallic; frenum not discernible; meso- 

 thorax submetallic, polished, metathorax strongly punc- 

 tate Cercocephala p. 485 



Body metallic; frenum large, distinct; antennae inserted in the 

 anterior margin of the oblong head Spalangia p. 485 



