366 THE CANADIAN ENTOMOLOGIST. 



THE GEOMETRID GENUS STAMNODES, GUENEE. 



BY RICHARD F. PEARSALL, BROOKLYN, N. Y. 



This genus has not been heretofore accorded a place in our lists, but 

 must now be included to cover a well-defined group of species, ranged at 

 present under the genus Coenocalpe, Hubn. Long ago I became 

 convinced of the need for their separation, and obtained, through Mr. L. 

 B. Prout, the European type of the genus. I found it did not fit a single 

 species, with the exception, perhaps, of polygrammata, Hulst. If this 

 prove to be so, for I am not certain of it as a fact, then with it would go, 

 I presume, the recently described species, Coenocalpe elegans, Gross., 

 which he says is nearly related. I have not yet seen his type specimen. 

 Meanwhile, a conviction, after reading his description of the genus 

 St a in nodes, Guence, and of its type paupcraria, Evers., forced itself upon 

 me, that Guenee's genus must also cover certain of our species, and again 

 I sought the kind offices of Mr. Prout for the procuration of a type speci- 

 men. It was no easy task to secure one, but it has just come to hand, a 

 fine male from Central Asia. Its venation, style of markings, of colouring, 

 of scaly covering, all coincide with American forms, of which the nearest 

 would be Seifertii, Neum., reduced one-half. The species which easily 

 separate under it are : 



Seifertii, Neu. 



topazata, Str. 



fervifactaria, Grote. 



splendorata, n. sp. 



formosata, Str. 



Franckata, Pears (MSS.). 



gibbicostata, Walk. 



annellata, Hulst. 



coenonymphata, Hulst. 



Alaskae, Hulst. 



delicata, Gross. 



Of the remaining species, aurata, Grote ; magnoliata, Guen. ; oxy- 

 gramma, Hulst, form a small composite group, which may include 

 parinotata, Zeller, and possibly Hydriomena basaliata, Walk. 



Phlebeculata, Guen., if I interpret his description correctly, does not 

 belong here, but may be found to displace some of our Hydriomenid 

 names. 



October, iq?9 



