2S6 CONNECTICUT GEOL, AND NAT. HIST. SURVEY. , [BuU. 



or more times longer than penultimate joint; upper vein 

 of third discoidal cell not at all or but slightly arched, 

 so that this cell receives the median vein at its upper basal 



angle Ichneumon p. 323 



Areolet wanting; exserted portion of ovipositor nearly half 

 the length of abdomen; apical tarsal joint with a prom- 

 inent empodium, tarsal claws deeply cleft 



Hymenoepimeces p. 323 



107. Ovipositor issuing from a ventral cleft 108 



Ovipositor issuing from apex of abdomen; scutel rounded or 



convex, not quadrangular lie 



108. Areolet triangular, complete 109 



Areolet incomplete or wanting; femora slender, not thick- 

 ened; clypeus separated from rest of face by a suture .... 



Polysphincta p. 317 



109. Abdomen smooth and shining, impunctate; body yellow .... 



Theronia p. 323 

 Abdomen more or less punctate; body black .... Scambus p. 318 

 no. Abdomen more or less punctate; tarsal claws not pectinate, 

 areolet wanting; exserted portion of ovipositor less than 



half the length of the abdomen Clistopyga p. 317 



Second to fourth dorsal abdominal segments each with an 

 oblique linear depression on each side; tarsal claws pecti- 

 nate Glypta p. 316 



111. Ovipositor issuing from apex of abdomen; areolet complete 



and triangular, rarely incomplete 112 



Ovipositor issuing from a ventral cleft; tarsal claws not pecti- 

 nate 114 



112. Tarsal claws not pectinate, only bristly at base 113 



Tarsal claws pectinate Meniscus p. 312 



113. Head and thorax with long conspicuous hair. . . . Arenetra p. 315 



Head and thorax with short inconspicuous hair. .Lissonota p. 313 



114. Areolet present and triangular; flagel not emarginate 



Phytodietus p. 311 

 Areolet wanting; third and fourth joints of male flagel emar- 

 ginate or excavated Lissonota (Cylloceria) p. 314 



115. Hind femora not toothed beneath; front without a horn 116 



Hind femora with a tooth beneath that is directed backward; 



mid tibiae of female appearing as if twisted; head nearly 

 spherical Odontomerus p. 311 



116. Areolet wanting 117 



Areolet present 118 



117. Face narrowed beneath, cheeks tuberculate behind their flat- 



tened and depressed posterior orbital edge; tibiae slender, 



not inflated; propodeum not areolated Xorides p. 310 



Face not narrowed beneath and cheeks not tuberculate; 

 fore and mid tibiae in female cylindrical, narrowed and 



