No. 22.] HYMENOPTERA OF CONNECTICUT. 29I 



evidence on the' face and metapleura than elsewhere ; apex of 

 second dorsal abdominal segment broadly margined with red; 

 petiole of abdomen and second dorsal segment toward base sub- 

 opaque, the former channeled, the latter feebly pitted basally; 

 petiole of abdomen nearly as wide at base as at apex, and about 

 one-fourth longer than the second abdominal segment, third seg- 

 ment about two-thirds as long as the second, the fourth about 

 one-half as long as the third, succeeding segments shorter, sub- 

 equal. 



Bred from a water beetle of the genus Gyrinus. 



Catoglyptus Foerster, 

 *C. ? fucatus Cresson. 



Female : length 6-8 mm. ; color varies from almost uniformly 

 brownish red, to brownish red with the thorax, except mesonotum 

 and scutel, and the upper part of the head, black ; abdomen often 

 dusky or blackish at apex; legs varied with pale yellow, dusky, 

 and blackish ; antennae varying shades of brown, reddish toward 

 apex ; ovipositor exserted ; areolet wanting. 

 Type locality : Connecticut. 



Notopygus Holmgren. 



°N. cultus Cresson. 



Female : length 9 mm. ; almost uniformly reddish, with face 

 and mouth-parts yellowish ; spot enclosing ocelli, another around 

 base of antennae, and dorsum of third and fourth abdominal seg- 

 ments, dusky. 



Homaspis Foerster. 



°H. albipes Davis. 



Female : length 10 mm. ; mostly black, with the abdomen 

 almost entirely reddish ; thorax and head ornamented with white ; 

 upper portion of fore and mid coxae, their tibiae and their tarsi, 

 except apical segments, white ; rest of legs mostly reddish ; 

 ovipositor scarcely exserted . 



Polycinetis Foerster. 



°P. limatus Cresson. 



Female and male : length 9 mm. ; mostly black ; mouth-parts, 

 tegulae, a point in front of the latter, a line beneath face, and 



