THE CANADIAN ENTOMOLOGIST. 289 



indistinct that they are hardly traceable. The species has evidently 

 proved a stumbling-block to the Abbe in his work, as he has placed it in 

 three different subfamilies, and each one under a new species. 

 Mesoliptus rufipes, Echihrus pediculatus and the present species are one 

 and the same. They are all, with very little doubt, synonyms of Cresson's 

 Mesoliptus (1) muliebris, which is the $ . The venation, form and mark- 

 ings are the same except that the $ $ are paler in colour. 



Pezomachus sulcatus = Fettitii, Cress. — The sulcate groove of the 

 mesonotum is perhaps a little deeper and plainer than in Fetiiiii, but is 

 present in both, and the two species seem to be identical in all other 

 respects. 



Anomalon rufulum^ ? , O K, 



Anomalon rii/ulu?n, ^ = Anomalon chlamidatum, Prov. 



Limneria Giiignardl, O K. — Up to a very recent date I have sup- 

 posed that this species was synonymous with fugitiva. Say. This seems 

 to have been the general belief from the number of specimens in various 

 collections under the name fugitiva. Say's description of fugitiva gives 

 " posterior tibiae white with black tip and base. " Provancher's descrip- 

 tion of Guignardi reads : " The posterior (tibiae) black with a large white 

 annulus in the middle and another smaller at the base." I have found 

 one typical fugitiva. Guignardi is the common species. 



Thersiloclnis erebundus -^ = Porizon angular e. 



Mesoleptus angustus, $ and ? , O K. 



Mesoleptus rufotnixtus, ^^ , O K. 



Mesoleptus nigricornis, ? = Ctenopelnia. 



Exenterus Jiullensis, (^, O K. 



Through the kindness of Mr. Guignard, I have been privileged to 

 examine a few Provancher types in his collection. The following is a 

 summary of this examination : — 



Stilpnus appendiculatus = Hemiteles humeralis $. . 



Phygadeuon Guignardi = Ichneumon mendax, Cress. 



Hemiteles mucronatus is O K. 



Cryptus ornatus, O K. 



Cryptus erythropygus, O K. 



Cryptus j-aunulatus, O K. 



Cryptus gracilis, O K. — Cryptus rectus answers the description of 

 this species quite as well if not a little better. They are probably 

 synonymous, though perhaps not. 



