110 THE CANADIAN ENTOMOLOGIST. 



At Lake Simcoe the nymphs crawl out upon the rocks or clay banks 



of the wave-beaten shore, where they transform. They never crawl more 



than three or four feet from the water's edge. The imagoes fly over the 



lake near the shore, and in openings in the woods within half a mile or so 



of it. 



(To be continued.) 



A NOTE ON THE EUCHCECA COMPTARIA MUDDLE. 



BY HARRISON G. DYAR, WASHINGTON, D. C. 



I have carefully separated out my material by Mr. Pearsall's latest 

 (Can. Ent., xxxviii, t^;^, 1906) and find all the forms before me. I 

 cannot agree that the arrangement is final. In the first place, in 

 describing the genus Nomenia, Mr. Pearsall mentioned as type 12-lineata, 

 Pack., which he now transfers to Euc/iceca, and makes a new name, 

 unipecta^ Pears., for the type species. This strikes me as a contravention 

 of the rules. An author can no more change his own names than those of 

 another, nor his own determinations, when they are made as a restriction 

 of a heterotypical species. Mr. Pearsall's first restriction of 12-Hneata to 

 the Western form with unipectinate antennae will hold ; the form with 

 simple antennae latterly interpreted as 12-lineata may be called Pearsalli. 

 I have four specimens before me from Victoria, B. C. (E. M. Anderson) ; 

 Seattle, Wash. (T. Kincaid) ; Huachuca Mts., Arizona (Dr. Barnes) ; and 

 a fifth, doubtful, from Kaslo, B. C. (Dyar). 



In the second place, Mr. Pearsall has neglected two names of 

 Walker's, co7idensata and i?iclinataria, heretofore referred to the synonymy. 

 The former I should say was exhiimata, Pears., judging from the descrip- 

 tion j the latter not referable here at all, as Walker states the antennae to 

 be pectinated. My arrangement would be as follows : 



NoMENiA, Pearsall. 



duodecemlineata, Packard. 

 = iinipecta^ Pearsall. 



var. secunda, Pearsall. 

 EucHCECA, Hiibner. 



condensata. Walker. 



= exhumata^Vtd<x%2\\, 

 Pearsalli, Dyar. 

 comptaria, Walker. 



—perlineata, Packard. 



= salienia, Pearsall. 



