THK CANADIAN ENTOMOLOGIST. 105 



abdomen and the long narrow second discoidal cell being quite character- 

 istic and totally different from the other groups. 



The group is quite isolated and apparently peculiar to North America. 

 Only a single genus is known, and with the characters already given, 

 may be distinguished as follows : 



Marginal cell in front wings a little longer than the first cubital cell, 

 broadly truncate at apex ; head transverse, the temples broad, but 

 not quite as wide as the eyes, the hind orbits bounded by a distinct 



long carina posteriorly Anacrabro, Packard. 



[Type A. ocellatus, Pack ] 

 North American Species, 

 (i) Anacrabro, Packard. 



(i) A. ocellatus, Pack. 

 (2) A. boerhavife, Ckll. 



Subfamily II. — Lindeniince. 

 This subfamily agrees with the A7iact-abi-onince in its mandibular 

 characteristics, but otherwise shows little affinity, the other characters 

 being similar to those in the three subfamilies which follow. From these, 

 however, it is readily separated by the mandibles being acute or rounded 

 at apex and always edentate. In venation it agrees more nearly with 

 Rhopalinpe, the first recurrent nervure, as in that group, being received 

 by the first cubital cell at or near the middle, but the abdomen is sessile 

 and not petiolate or clavate. 



Only three genera are known, distinguished by the aid of the follow- 

 ing table : 



Table of Genera. 

 Mandibles not emarginate beneath ; antennal foves not wider from 



each other than to the eyes 2. 



Mandibles emarginate beneath ; antennal foveae wider from each other 

 than to the eyes. 

 Eyes hairy ; mandibles with two teeth or tubercles within towards 

 base ; scutellum with the basal furrow bifijveolated ; recurrent 

 nervure uniting with the cubitus distinctly beyond the middle of 

 the first cubital cell ; transverse cubitus joining the marginal 

 cell beyond the middle ; anal lobe in hind wings extending 

 beyond the short submedian cell; mesosternum without a ridge 



before the middle coxae Entomognathus, Dahlb. 



[Type E. brevis, Lind.] 



