No. 22.] HYMENOPTERA OF CONNECTICUT. 613 



yellow, the femora darker; metathorax smooth, with delicate 

 median and lateral carinae. Parasitic on Platynota sentana. 

 Length 3 mm. ^ 



G. foveolatus Ashmead. 

 Shining black, delicately punctate ; antennae honey-yellow ; 

 legs piceous, paler at tips; wings sub-hyaline, stigma and paras- 

 tigma black. Length 2.5-3 mm - 

 G. columbianus Ashmead. 



Shining black, the head very feebly microscopically punctate ; 

 antennae yellow except at base ; wings hyaline, stigmas brown and 

 veins pale yellow; legs brown, paler toward tips. Length 1.5-2 

 mm. 



dryinid;e. 



By Charles Thomas Brues. 

 Key to Genera. 



1. Males 2 



Females 4 



2. Front wings with an oval or ovate stigma 3 



Front wings with a narrow or lanceolate stigma, occiput 



deeply concave Gonatopus p. 614 



3. Pronotum much shorter than mesonotum, the latter without 



furrows Anteon p. 616 



Pronotum longer than mesonotum, the latter with furrows 



Chelogynus p. 615 



4. Wingless, ant-like, without scutellum Gonatopus p. 614 



With wings and scutellum 5 



5. Vertex convex, not impressed 6 



Vertex deeply impressed or concave, winged, with a scutel- 

 lum Dryinus p. 614 



6. Pronotum not or scarcely visible from above, more or less 



hidden by front margin of mesonotum, which is strongly 

 developed, furrows on the latter distinct, maxillary palpi 

 5-jointed Aphelopus p. 615 



Pronotum almost as long as mesonotum, fourth joint of front 

 tarsi much longer than third, first not or scarcely longer 



than three following united; maxillary palpi 5-jointed 



Chelogynus p. 615 



Pronotum much shorter than mesonotum, fourth joint of 

 front tarsi scarcely longer than third, first not longer than 



three following united; maxillary palpi 4-jointed 



Anteon p. 616 





