2 16 THE CA.NAt)tAN ENTOMOLOGIST. 



thorax united. ($ unknown). Alaska. .DolicIiocrabro,Ashm.,n.g. 



[Type D. Wickhamii, Ashni.] 



Superorbital foveae not sharply defined, wanting, or at most indicated 



by a cicatrix or a sUghtly depressed glabrous line ; metathorax 



with a well-defined cordate area ; clypeus not emarginate anteriorly. 



Front legs abnormal, the tibioe ivith a shieldlike 



expansion Crossocerus, Lepel. 



[Type C. scutatus, Fabr.] 

 Front legs normal or nearly, the tibiae wit/iout a shieldlike 

 expansion, the tarsi somewhat flattened, or at 



most stibdilated Stenocrabro, Ashm., n. g. 



[Type C. planipes, Fox.] 



9. Males ID. 



Females : 

 Superorbital fovere wanting, or at most indicated by a glabrous 

 depression, the occipital line or margin produced into a tooth 

 beneath the temples ; mandibles without a tooth within, truncate 

 or blunt at apex, indistinctly bidentate ; metathorax very feebly 

 sculi)tured, with a well-defined, smooth, semicircular area at base ; 

 abdomen smooth, sometimes with yellow maculae ; anal lobe in 

 hind wings as long as the submedian cell. Hoplocrabro, Thomson. 



[Type C. quadrimaculatus, Fabr.] 

 Superorbital fovese distinct, sharply defined, pear-shaped or broadly 

 depressed, the occipital line normal, not ending in a tooth 

 beneath the temples ; ocelli in an equilateral triangle ; mandibles 

 with a tooth within near the middle, at apex tridentate ; meta- 

 thorax almost smooth, shining, with a well-defined semicircular area 

 at base; abdomen polished; the first segment somewhat lengthened, 

 the pygidium triangular, punctate ; anal lobe in hind wings shorter 



than the submedian cell Cuphopterus, Morawitz. 



= Blepharipus, Auc. pars. 



[Type C. subulatus, Dahlb.] 



10. Superorbital foveae wanting, or at most indicated by a glabrous 



depression, never .sharply defined, the occipital line or margin 



produced into a tooth beneath the temples ; mandibles without 



a tooth within ; at apex bidentate Hoplocrabro, Thomson. 



Superorbital foveas distinct, sharply defined, pear-shaped, or 

 broadly depressed ; mandibles with a tooth within, at apex 

 bidentate Cuphopterus, Morawitz. 



