No. 22.] HYMENOPTERA OF CONNECTICUT. 483 



as thick antero-posteriorly ; clypeus with some fine converging 

 striae, antenna 13- jointed, inserted a Httle below the middle of 

 face, flagellar joints beyond first wider than long; thorax with 

 the parapsidal grooves indicated only anteriorly, metanotum with 

 a carina above; wings hyaline, apical two-thirds pubescent, the 

 basal one-third bare, marginal and postmarginal veins nearly 

 equal in length, about one-third longer than the stigmal, the 

 latter ending in a stigma or thickening ; legs, except coxae, brown- 

 ish yellow; abdomen ovate, attached to the produced portion of 

 metathorax by a distinct petiole. 



Bred from the pupa of Dineutes assimilis, of which it is prob- 

 ably only a secondary parasite. 



Sphegigaster Spinola. 

 S. n. sp. 



Bred from pupse of Odontocera dorsalis, New Haven, 1894 

 (W. E. B.). 



Cratomus Dalman. 

 °C. megacephalus Fabricius. 



Mostly black ; tibiae yellow ; wings white, with a median fus- 

 cous mark; abdomen shining. 



°C. leucophthalmus Ashmead. 



Male : length 2.5 mm ; mostly blue-black, confluently punctate ; 

 head, measured from eye to eye, nearly twice as wide as thorax, 

 a broad groove extending from the eye obliquely toward the 

 mouth; eyes finely pubescent; antennae 13-jointed, clavate; scape, 

 pedicel, and first and second funicular joints brownish yellow, 

 the following joints brown; legs red except the trochanters, 

 extreme tips of femora and tibiae, and all of the anterior tibiae, 

 which are brownish yellow ; wings hyaline, with a fuscous blotch 

 across the middle, veins rufo-piceous, submarginal vein distant 

 from costal edge and nearly three times as long as the marginal 

 vein, stigmal vein about as long as the marginal, postmarginal 

 distinctly longer than the stigmal; abdomen oval, with a bronzy 

 tinge and a yellow petiole. 



Raphitelus Walker. 

 °R. maculatus Walker. 



Male : mostly green ; antennae black except first joint, which is 

 yellow tipped with fuscous, and second joint, \yhich is fuscous; 



