No. 22.] HYMENOPTERA OF CONNECTICUT. 567 



T. carolinensis Ashmead. 



Black and shining, including antennae ; legs pale rufous, base 

 of coxae and clavate portion of femora and tibiae darker ; second 

 joint of club of female antennas round; third and fourth sub- 

 moniliform, slightly wider than long. Length 2 mm. 



T. rufipes Ashmead. 

 Black and shining; antennae except last four joints, and the 

 legs, rufous ; second joint of club of female antennae much wider 

 than the first ; third and fourth quadrate. Length 2-2.2 mm. 

 T. erythropus Ashmead. 

 Polished black. Antennae, except club, and legs reddish yel- 

 low. Metathorax and petiole piceous. Wings hyaline, strongly 

 fringed. Length 1.6-2 mm. 



T. agromyzae Fitch. 



Black, shining. Antennae piceous-black. Legs honey-yellow; 

 the hind coxae and the thickened parts of the femora and tibiae 

 blackish. Length 1.5 mm. 



Parasitic on Agromyza tritici, according to Fitch. 



T. tetraplasta Ashmead. 



Black. Antennae, except the apical three joints of the club, 

 rufous. Legs pale rufous or reddish yellow. Wings fusco-hya- 

 line. Length 1.6 mm. 



T. colon Say. 



Black, smooth, and polished. Legs black, with the tro- 

 chanters, knees, and tarsi piceous or brown. Wings subhyaline, 

 strongly fringed, with a fuscous streak below the stigma. Length 

 1.1 mm. 



T. virginica Ashmead. 



Polished black. Antennae, except the club, and the legs red- 

 dish yellow. Wings clear hyaline, the stigma yellowish. Scutel- 

 lum with a shallow transverse fovea at the base. Length 1.5 mm. 



Phaenopria Ashmead. 

 Key to Species. 



Females. 



I. Antennal club 3-jointed 2 



Antennal club 4-jointed schwartzii 



