^O. 22.] HYMENOPTERA OF CONNECTICUT. 513 



.11 tarsal joints whitish and rest of legs greenish blue; abdomen 

 >luish green above. 



Bred from Andricus ventricosus. 



0. vacciniicola Ashmead.. 



Female : length 2.5-3 mm - > mostly blue-black, with a slight 

 netallic luster ; head finely transversely rugulose, antennae mostly 

 lark brown, scape rufous ; thorax with wrinkled sculpture almost 

 wanting; legs mostly pale brown with a reddish cast, posterior 

 emora slightly infuscated above, all coxse brown, except base of 

 >osterior pair; wings hyaline with brown veins; abdomen much 

 ompressed, brown with a metallic luster, a row of white hairs 

 m each segment except the basal one, the apex produced into a 

 lender point. 



Bred from the gall-fly Solenozopheria vaccinii. 



0. sp. 



Bred from Diastrophus cuscutceformis. 



Megastigmus Dalman. 



M. canadensis Ashmead. 



Female : length 2.5 mm. ; mostly scaly punctate, and blue or 

 luish green in color; head broader than thorax, antennae brown 

 nd pubescent ; wings hyaline, stigmal vein knobbed and extending 

 o the middle of the wing ; legs mostly yellowish white, femora, 

 :xcept at tips, brown or greenish ; abdomen dull metallic green. 

 Bred from an oak gall, Biorhiza forticornis. 



M. (?) flavipes Ashmead. 



Male: length 1.5 mm.; mostly light blue, finely and conflu- 

 ntly punctate; antennae brownish black; wings hyaline, stigmal 

 ein rather as in Torymus, knobbed, legs yellow ; abdomen toward 

 .pex aeneous. 



Reared from a cecidomyious larva on cedar. 



Diomorus Walker. 



D. zabriskei Cresson. 



Female : length 5 mm. ; mostly bright metallic green, varied 

 vith shades of blue; antennae mostly black, base of scape testa- 

 eous; thorax confluently punctate; wings hyaline, faintly dusky 

 t tips ; legs mostly green or blue, tibiae fuscous or black, whitish 



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