25O CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



Flagel not thickened; last abdominal segments of female 

 not recurved as described in preceding paragraph... 57 



57. Hind femora not thickened; ovipositor rarely curved upwards 58 

 Hind femora thickened; ovipositor curved upwards ......... 



Catoglyptus p. 291 



58. Cheeks either punctate or shagreened, or both 59 



Cheeks perfectly smooth, neither punctate nor shagreened; 



wings with an areolet Gausocentrus p. 290 



59. Clypeus plainly divided by an elevation, face not narrowed 



beneath; second to fourth dorsal abdominal segments not 

 twice as broad as long, first dorsal abdominal segment 

 with a carina on each side, which extends from spiracle 

 to apex; wings without an areolet, radius starting from 

 middle of stigma; apical joint of hind tarsi not often 

 curved, not as long as third, plainly longer than fourth; 

 propodeum not or incompletely areolated. . Mesoleptidea p. 290 

 Clypeus, face, second to fourth dorsal abdominal segments 

 and first dorsal abdominal segment as in description of 



Mesoleptidea given above; wings with an areolet 60 



70. Last joint of hind tarsi either plainly shorter than third or, 



when as long, then not bent or curved 61 



Last joint of hind tarsi as long as or longer than third, and 

 plainly bent or curved; body and antennae long and slender. 



Hadrodactylus p. 289 



61. Clypeus without an apical impression 62 



Clypeus impressed before apex, finely margined; mesonotum 



and scutel shagreened and punctate Rogas p. 289 



62. Clypeus not flat; second lateral area without a tooth-like 



projection 63 



Clypeus flat; second lateral area projecting tooth-like; radius 

 starting back of middle of stigma Oxytorus p. 289 



63. Radius starting from middle of stigma; nervellus branched 



above middle; mesonotum shagreened and punctate 



Symphobus p. 289 

 Radius starting before middle of stigma; nervellus branched 

 below middle; mesonotum and scutel smooth, punctate; an- 

 tennae without a pale annulus Zemiodes p. 288 



64. Propodeum areolated at base 65 



Propodeum not areolated at base Polycinetis p. 291 



65. Wings without an areolet Homaspis p. 291 



Wings with an areolet; second dorsal abdominal segment 



with two median carinae at base Notopygus p. 291 



66. Sides of first dorsal abdominal segment not or scarcely broad- 



ened as in Otoblastus 68 



Sides of first dorsal abdominal segment broadened, ear-shaped 

 at base Otoblastus p. 296 



