398 ENTOMOLOGICAL NEWS. [NoV., IQII 



adds Monosca suhnotata Walker, a change which Prof. Smith 

 accepts. He makes violans Guen., of which he has a type from 

 "Eastern States" "Ab. j * * * more purple, and without 

 the red tones." He shows a wood cut of the species, but in it 

 the antennal branches appear longer, and the bristles shorter, 

 than in the cut of pcctinata on the opposite page, in contradic- 

 tion to the tables. In fact, in his detail of pectinata the anten- 

 nal branches are shorter and bristles proportionately much 

 longer, than in any B. C. specimen that I have seen. 



In Can. Ent. XXXVII, 179-180, May, 1905, I published a 

 somewhat extensive note on these forms, in which some an- 

 tennal variation was suggested, and stating that my only Win- 

 nipeg specimen of authentic tcrtialis was inseparable from 

 some Eastern specimens superficially. 



When at Prof. Smith's collection I noted a male and female 

 type and male co-type of tcrtialis, and wrote: "Pectinations 

 longer than minians, and as long as pcctinatus, with bristles 

 as in minians. A very good species." And later at Washing- 

 ton, I wrote of a male co-type and another Winnipeg male, 

 "Antennae bipectinate with long branches as in pectinatus, but 

 bristle longer than in pcctinatus, not as long as minians." My 

 conclusion as to the validity of the species was based solely 

 upon the antennal structure. Whilst with Mr. W^allis at Win- 

 nipeg a few weeks before, I had noted that from an examina- 

 tion of the antennae of his Kcphclodes it seemed he might have 

 more than one species. And at Rutgers College and other col- 

 lections I frequently noticed, in several other genera, rather 

 striking dififerent relative lengths of antennal serrations or pec- 

 tinations in specimens which appeared otherwise exactly alike, 

 and called Prof. Smith's attention to it. Tlie length of serra- 

 tions or pectinations is often, undeniably, a valuable aid in 

 separating closely allied species. But in the case of Ncphclodcs^ 

 as in some others, I gradually became very suspicious. At my 

 request Mr. Wallis kindly sent me all his material in this genus 

 for study. Most, as he regretted, were in bad condition, but 

 served my purpose perfectly well. These, added to my own 

 material from various localities totalled 59 males and 15 fe- 



