No. 22.] HYMENOPTERA OF CONNECTICUT. 575 



S. melliventris Ashmead, 



Head and thorax black. Abdomen yellow, the petiole and the 

 tip black. Legs yellow, hind tibial spur one-third the length 

 of the metatarsus. Length 4-5 mm. (male). 



New Haven, 31 October, 1903 (H. L. V.). 



S. californicus Holmgren. 



Black. Legs, except coxae, and antennae beneath reddish. 

 Antenna with first to fifth joints of flagellum dentate beneath. 

 Length 4-4.5 mm. (male). 



New Haven, 31 October, 1903 (H. L. V.). 



°S. flavipes Provancher. 



Black. Mandibles, tegulae, and legs, including coxae, pale 

 yellow. Marginal cell as long as the stigma. Posterior tibial 

 spur two-thirds the length of the metatarsus. Length 3.5-4-5 """• 



°S. clypeatus Ashmead. 



Black. Clypeus and mandibles rufous. Legs, including coxae, 

 yellowish. Cauda longer than the abdomen, reddish basally. 

 Tibial spur of posterior leg one-half the length of the metatarsus. 

 Length 4.5 mm. 



°S. abruptus Say. 



Black. Legs reddish yellow, coxae often in part black. Cauda 

 only one-fourth the length of the abdomen. Length 2.5-3 mm. 



°S. obsoletus Say. 



Larger than abruptus and with the antennae almost wholly 

 yellow. Length 4 mm. 



Parasitic on SteUdota strigosa. 



S. carclinensis Ashmead. 



Black. Antennal scape, tegulae, and legs yellow ; coxae dusky 

 at base. Metathorax with a single carina extending to the tip. 

 Posterior tibial spur half the length of the metatarsus. Length 

 5-5.5 mm. • 



Putnam, 12 July, 1905 (H. L. V.). 



°S. longiceps Ashmead. 



Black. Antennas, except tips, yellowish. Legs reddish yellow. 

 the coxae dusky. Metathorax weakly rugulose, with a median 

 carina. Cauda as long as the metatarsus. Spur of posterior 

 tibiae one-third as long. Length 7 mm. 



