562 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



9. Marginal vein punctiform; abdomen broadly truncate at the 

 apex of the second segment, at which point it is broadest 



Hemilexis 

 Marginal vein large, quadrangular or linear; abdomen not 

 truncate 10 



10. Tip of abdomen rounded and depressed; base of second 



segment usually raised above the surface of the petiole; 



marginal vein once or twice as long as broad 



Spilomicrus p. 564 

 Abdomen conically pointed and compressed at tip; base of 

 second segment not raised; marginal vein linear, three or 

 four times as long as broad Paramesius p. 563 



11. Face much produced, horizontal; mandibles rostriform, 



extending to the prosternum Galesus p. 564 



Face normal; mandibles not thus prolonged 12 



12. Subcostal vein not attaining the border of the wing; stigmal 



vein separated from the costa Aneurhynchus p. 564 



Subcostal vein attaining the costal margin of the wing 13 



13. Wings with a well-marked basal vein; antennal club 3-jointed 



Loxotropa p. 565 



Wings without basal vein 14 



14^ Scutellum without depressions at the base . . . . Phaenopria p. 567 



Scutellum with one or two basal impressions 15 



15. Scutellum carinate or ridged medially 16 



Scutellum flat or feebly convex Trichopria p. 566 



16. Club of antennas abrupt, 3-5-jointed; basal margin of second 



abdominal segment simple Ashmeadopria p. 566 



Club of antennae gradual, 6-jointed; basal margin of second 



abdominal segment raised and angularly emarginate 



Diapria p. 565 



Males. 



1. Antennae 14-jointed 2 



Antennae 13-jointed 10 



2. Third joint of antennae angulate or emarginate, fourth joint 



simple; no parapsidal furrows Ashmeadopria p. 566 



Third joint of antennae simple; fourth joint sometimes 

 angulate 3 



3. Wings absent or abbreviated Loxotropa p. 565 



Wings fully developed 4 



4. Scutellum without any impression at the base Phaenopria p. 567 

 Scutellum with one or two impressions at the base S 



5. Subcostal vein not attaining the margin of the wing 



Aneurh3mchus p. 564 

 Subcostal vein attaining the margin of the wing, or absent 6 



6. Mandibles rostriform, attaining the prosternum; face pro- 



duced behind Galesus p. 564 



Mandibles normal; face not produced 7 



