92 THE CANADIAN ENTOMOLOGIST. 



Coelodasys biguttatus Pack. Rare ; Mr. Kuetzing. 

 Heterocampa manteo Walk. Not common ; June. 

 Cerura cinerea Walk. Rare ; June, C. W. P. 



" Undetermined. Not common ; June. 



Platypteryginae. 

 Platypteryx arcuata Walk. Rare. 

 " lacertinaria Linn.x Rare. 



Attacinae. 

 Telea polyphemus Linn. Very common, June, July. 

 Actias luna Linn. Not common ; June. 

 Callosamia promethea Drury. Rare ; June. 

 Samia cecropia Linn. Common ; June. 



" Columbia Smith. Very rare ; one specimen from cocoon found on 

 maple, emerged in-doors May 15th, 1874 ; C. W. P. 

 Ceratocampinai. 

 Hyperchiria io Fabr. Not common ; June, 



Dryocampinae. 

 Dryocampa rubicunda Fabr. Very rare ; Mr. Lyman. 



Lacheiinte. 

 Gastropacha americana Harris. Very rare; June loth, C. W. P. 

 Tolype velleda StoU. Not common ; September. 



" laricis Fitch. Very rare ; Mr. Bowles. 

 Clisiocampa americana Harris. Very common ; July. 



" sylvatica Harris. Extremely abundant ; July. 



Hepialinse. 

 Xyleutes robinae Harris. Not common ; June. 

 Stenopis argentimaculata Hairis. Very rare ; July, F. B. C. 

 *' thule Strecker. Very rare, F. B. C. 



REMARKS ON THE SYNONYMY OF NORTH AMERICAN 



COLEOPTERA. 



BY E. P. AUSTIN, CAMBRIDGE, MASS. 



Tachinus fuviipeuuis Say (Tachyporus) is not synonymous with T. 

 axillaris Er., as supposed by Erichson, but differs from that species in 

 several important particulars, as follows : 



In T. axillaris the upper surface is extremely finely punctured, while 



