THE CANADIAN ENTOMOLOGIST. 185 



alone has black veins on primaries above, a character possessed by none 

 of my occidenialis. Quite the most obvious difference is in the marginal 

 venular markings wherever present. In sisymbri these are of uniform 

 width, not tending to widen out on the extreme margin. In occidetitalis 

 they widen out on the termen, usually joining above, occasionally beneath. 

 Holland's description of the under side of the secondaries of sisymbri fits 

 some of my occidenialis exactly, but though m an occasional specimen of 

 occide?italis, the tendency there of the vein linings to broaden on the 

 margin is very slight, their strongly dentate form on the primaries in all 

 my specimens is unmistakable. 



69. P. protodice, Bd.-Lec. — Except for an occasional female, I find I 

 can now separate this from occide?italis. Generally speaking, the markings 

 are all much heavier and darker in the latter, the marginal spots on 

 primaries of protodice male being reduced to insignificance, and the 

 secondaries beneath almost immaculate. There seems, too, a stronger 

 tendency in occideittalis for the inner row of black blotches to form a 

 band. In the females these differences are less pronounced, the black 

 markings in both species being rather strongly developed, and, leaving 

 the dark, strongly-marked form (calyce ?) out of the question, the vein 

 linings of the under side of the secondaries are occasionally very much 

 alike. I have tried to find a constant feature in the inner submedian 

 interspaceal spot on primaries. In occidejitalis this is rather small, with 

 a rather obvious tooth outwards. In protodice it is usually much larger 

 and less obviously toothed. This, however, sometimes fails me in the 

 females ; in particular, a specimen from Chicago, where occidenialis surely 

 cannot be found, as well as at least one of my Calgary specimens, looking 

 equally well in either series. The outer margin of primaries in occidenialis 

 seems nearly straight or slightly convex. In protodice it is usually slightly 

 concave. This, however, is a variable feature. Protodice flies here in 

 June and July, and a second brood emerges at the end of August. Like 

 so many other species, it has been rather scarce here of recent years, and 

 I am very poorly off for material. 



72a. Anikocharis creusa, Doub.-Hew. — Mrs. Nicholl took a speci- 

 men at Banft'on June 2nd, 1904, and I took one there myself on July ist, 

 1907, quite fresh. I also took two or three in fine condition, and saw 

 twice as many more at timber line on Mt. Piran, on July T7th last. The 

 Calgary specimen previously recorded is probably the same species. In 

 Rep. 36, Ent, Soc. Ont., 1905, p. 79, Dr. Fletcher says : "In creusa the 



