No. 22.] 



HYMENOPTERA OF CONNECTICUT. 



307 



Fig. 9. Exochus propinquus . 



Metacoelus Foerster. 



M. laevis Cresson. 



Female and male : length 5-7 mm. ; mostly blackish, with the 

 legs and palpi brownish red, antennae still darker; face with a 

 dark red stain beneath the antennae ; propodeum completely areo- 

 lated. 



Triclistus Foerster. 

 Key to Species. 



1. Thorax and abdomen mostly black 2 



Thorax and abdomen reddish or nearly so; hind tibiae not 



annulate, without white annuli; face white; thorax with 

 white markings; areolet wanting. Length 6 mm. (female 

 and male) atriceps 



2. Face and abdomen entirely black; coxae and legs reddish 



Length 7-8 mm. (female and male) curvator 



Face yellow to dusky red; abdomen beneath and its ultimate 

 and penultimate dorsal segments reddish. Length 8 mm. 

 (female and male) apicalis 



T. atriceps Walsh. 

 T. apicalis Cresson. 

 T. curvator Fabricius. 



