No. 22.] HYMENOPTERA OF CONNECTICUT. 487 



twice as long as the others, and the last, which is more or less 

 triangular; prothorax much more finely punctate than the head, 

 especially beneath, rest of thorax rugulosely punctate, with the 

 punctures separated; wings hyaline, marginal vein twice as long 

 as the stigmal and one and one-half times as long as the post- 

 marginal, under side of thorax and coxae green, shagreened; 

 legs mostly honey-yellow, femora brownish, as are all the apical 

 tarsal joints ; abdomen blue-green, polished, slightly longer than 

 the thorax; body throughout sparsely pilose with white hairs. 

 Bred from Diplosis resinicola on Pinus rigida. 



Hemadas Crawford. 



°H. nubilipennis (Ashmead). Megorismus nubilipennis Ash- 

 mead. * 



Female : length 2.75 mm. ; shining, mostly blue-black and 

 almost sculptureless ; scape reddish brown; legs mostly reddish 

 brown, the posterior femora infuscated or slightly bluish, the 

 tarsi pale ; wings hyaline, with a large brown blotch enclosing the 

 marginal vein and stigma, veins brown, the marginal vein about 

 twice as long as the stigmal vein, which is toothed, the submar- 

 ginal vein interrupted by a pale ring at the juncture with the 

 marginal ; abdomen flattened. 



Bred from the galls of Solenozopheria vaccinii. 



APHELINID^. 

 Key to Genera. 



1. Tarsi 5-jointed, or seemingly only 4-jointed owing to the 



fusion of the ultimate and penultimate joints; antennae 5- 

 jointed, funicle i-jointed, ring-joints two . . Eretmocerus p. 490 

 Tarsi 4-jointed 2 



2. Anterior wings with an obliquely transverse hairless line 



below stigma; antennae 6-jointed; ovipositor not, or only 

 slightly, exserted; wings hyaline, or with a slight fuscous 

 patch, eyes not hairy Aphelinus p. 489 



3. Antennae 8-jointed 4 



Antennae 7-jointed; club l-jointed; exserted portion of ovi- 

 positor about one-half as long as the abdomen; stigmal 

 vein squarely truncate at apex Ablerus p. 490 



4. Club 2-jointed, hind tibiae not armed with stiff black bristles 



Encarsia p. 489 



