THE CANADIAN ENTOMOLOGIST 299 



Walk, (not goasalis), from Nova Scotia, a male from Lieut. Red- 

 man, is better marked. They appeared to me to be the same 

 species, and the one here Hsted. 



Thvatirid.e 



433. Psetidothyatira expidirix Grt. — I have seen a specimen 

 from Edmonton, taken by Mr. F. S. Carr, on June 10th, 1910. 

 The same collector also submitted to m.e a specim.en of cymato- 

 phoroides, taken on Juh* 17th of the same year, which is now in 

 my collection. These forms appear to me to be distinct species, 

 as the transverse lines differ. In cymatophoroides the posterior 

 edge of the transverse anterior bar is much less waved or crenate 

 than in expiiltrix, and the same is true of the t.p. line, which in 

 expidtrix is generally deeply crenate. This difference is most 

 obvious near the anal angle, where is the dark-brown patch gener- 

 ally so conspicuous in cymatophoroides. This patch is sometimes 

 much reduced, whilst in one of my Vancouver specimens of expid- 

 trix there is a small patch of dark brown after the t.p. line at this 

 point, though the line itself is deeply crenate. The sam^e specimen 

 has no trace of dark brown in the t.a. bar. 



In the Kootenai List, Dr. Dyar suggested that these forms 

 might be distinct, as he found a slight, though apparently not 

 constant", difference in the larvae. 



NOTODONTID^. 



43(3. Melalopha albosigma Fitch. 



437. M. hrucei Hy. Edw. — I have occasionally taken both 

 these species at light, not uncommonly, at the end of May and early 

 June. 



439. Notodonta simplaria Graef. — High River (Baird). Also at 

 Iiead of Pine Creek, May 29th, 1910. 



440. Phecsia dimidiata H.-S. — One at light at head of Pine 

 Creek, Jure 5th, 1910. High River, May 7th, 1910 (Baird). 



441. Harpyia scolopendrina Bdv. — I have about twenty local 

 specimens under this nam.e, and have taken m.ore. May 11th tJ 

 June 5th. Also one from Banff (Sanson), June 25th. I have not 

 been able to verify the nam.c. It is doubtfully the sam.c as the species 

 figured by Holland on Plate XXXIX., Fig. 11., being paler in ground 

 colour, with much n.L>re distinct lines in the postmxdial area, and 



