342 CONNECTICUT GEOL. AND NAT. HIST. SURVEY, [Bull. 



nulus at about their middle; wings hyaline; hind coxae 

 toothed beneath. Length of body 7.5 mm helvolus 



*P. fungor Norton. 

 The records for this species in the Agricultural Experiment 

 Station in New Haven indicate that it occurs throughout the 

 state in June, July and August (W. E. B., B. H. W., H. W. W., 

 J. A. Hyslop, E. J. S. M.). 



*P. hebe Cresson. 



*P. hebrus Cresson. 



*P. (Centeterus) quadriceps Cresson. 



*P. helvolus Cresson. 



P. vincibilis Cresson. 



West Haven, 27 June, 1905 (H. L. V.) ; Branford, 27 June, 

 1905 (H. W. W.). 



Eparces (Foerster) Ashmead. 



°E. tuberculifrons (Provancher). 



Length 6.2-7.5 mm. ; mostly reddish; tips of antennae and apex 

 of abdomen more or less black, former with a whitish annulus 

 at about their middle ; wings clouded with fuscous. 



Colpognathus Wesmael. 

 *C. helvus Cresson. 

 Length 7.2-10 mm. ; mostly reddish ; mandibles black, apex 

 of antennae also black ; wings subhyaline. , 



Eurylabus Wesmael. 

 °E. agilis Cresson. 



Length 8-8.7 ^^' Female : mostly black, a dot on each side 

 of vertex, annulus on flagel, dot beneath tegulse on pleurae, scutel 

 and postscutel, white; wings hyaline, fore and mid tibiae and 

 tarsi more or less pale. Male : with sides of face, two spots on 

 clypeus, labial palpi, spot on scape beneath, spot on tegulae, and 

 a line before tegulae, white; extreme base of femora reddish; 

 otherwise as in female. 



Platylabus Wesmael. 

 Key to Species. 

 Scutel of female reddish; antennae of male with a white an- 

 nulus; head, anterior half of thorax and apical third 



