298 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



parts, tegulae, tubercles, and usually more or less of the scutel, 

 yellow, or the face only partly yellow ; antennae brown. 



Erromenus Holmgren. 

 Females and males : length 6-7 mm. ; mostly black. 



Key to Species. 



Apical portion of clypeus, mouth-parts, and antennae in fe- 

 male dusky reddish; legs reddish; in male legs may be 

 blackish or black; antennas brownish black in male crassus 



Apical portion of clypeus dusky reddish to yellowish; tegulae 

 blackish to yellowish, antennae black; legs reddish; coxae 

 and usually trochanters black; hind tibiae with a more or 

 less distinct yellow annulus at base; second, third, and 

 fourth dorsal abdominal segments reddish; third and fourth 

 sometimes blackish or black dimidiatus 



E. dimidiatus Cresson. 



Mt. Carmel, 24 May, 1906 (B. H. W.) ; New Haven, 24 May, 

 1905 (W. E. B.). 



E. crassus Cresson. 



Scopiorus Foerster. 

 Females and males : length 6-7 mm. ; mostly black. 



Key to Species. 



Face, mouth-parts, scape beneath, tegulae, trochanters, and 

 abdomen beneath, yellow; female in addition with lower 

 half of cheeks, sternum, lower margin of pleurae, fore and mid 

 coxae, and apical margin of last two or three dorsal abdom- 

 inal segments, yellow; male with more or less of a vertical 

 line on face and the clypeal suture yellow; antennae reddish 

 brown in male, in female more yellowish; areolet usually 

 present; legs and first three or four basal dorsal segments 

 of abdomen reddish analis 



Clypeus, mandibles, palpi, tegulae, and scape beneath, yel- 

 lowish white; legs reddish, often with apex of femora and 

 tibiae and tarsi of hind legs dusky; antennae varying from 

 pale reddish brown to nearly black; areolet usually pres- 

 ent; abdomen varying from reddish with ultimate and pen- 

 ultimate dorsal segments black, to black with second dor- 

 sal segment either reddish or blackish subcrassus 



S. subcrassus (Cresson). 

 S. analis (Cresson). 



