Sll TIIK CANAIHAN KNT«»MOMK»I8T. 



who was good enough to compare a specimen of /asciata with the type of 

 bi/uiciiUa, was of opinion that they belonged to the same species. 



But the type o^ bi/asciaia is not in the best condition, and my own 

 specimens of hifasciaia, taken in the type locality, seem sufficiently 

 different from the eastern form to warrant the imposition of a new name. 



It is hardly to be expected that a species of Eupilhecia found in V>. C. 

 should also be found in Ontario and Massachusetts, and yet be wanting in 

 all intermediate localities, and until specimens are found in such localities, 

 or until by the study of more ample material the dilTerences I rely on are 

 shown to be inconstant, I think the better plan is to give the eastern form 

 a name distinct from the western. 



E. bif asciata Dyar, was described (Proc. U. S. Nat. Mus., XXVII, 

 891) as Lephrocystis (typographical error for Tephroclystia) bi/asciala. 

 The types were two in number. One taken on June 25 is in the U. S. 

 National Museum, No. 7820, the other taken on June 13 is in Mr. 

 Cockle'.s collection. I have a specimen exactly similar to this last named, 

 and taken at the same place on May 17. 



At a later date Dr. Dyar described T. harlequinaria (Proc. Ent. Soc. 

 Wash., VII, p. 29, 1905) from two specimens from Victoria (E. 

 M. Anderson) and one specimen from Seattle (O. D. Johnson). One of 

 the Victoria specimens passed throuj^h my hands, and I have no hesitation 

 in saying that it was merely a very brightly coloured, fresh specimen of 

 bifasciata. 



From these ioxvci% faiciata niay be distinguished by its smaller size 

 and duller coloration, and by the fact that in it the brown patch between 

 veins 3 and 4 of fore wings docs not interrupt the double extradiscal line, 

 while in bifasciata these lines are obliterated. These differences are, it is 

 true, very slight, but 1 am of opinion that a longer series of good speci- 

 mens will show that the two forms are at least distinct geographical races. 



E. /asciata may be described in detail as follows : 



Expanse, 18 mm. 



Palpi moderate. Thorax fuscous, a distinct white spot posteriorly. 

 In bi/asciata there is also a white median transverse bar on the thorax. 

 There is no such bar visible in my specimens o{ /asciata, but this may 

 possibly be due to their being in poor condition. Abdomen without 

 blackish band on second segment ; dorsal tufts black. 



I 



