THE CANADIAN ENTOMOLOGIST. 183 



prove to be the western form of that species, from which it differs in being 

 a little larger and having tlie secondaries not quite so clearly white, and 

 generally slightly smoky outwardly. I have compared over a dozen speci- 

 mens from the eastern States, which, from the description given in the 

 " Revision," and from Dr. Holland's figure, I believed to be true muiiiii?iea, 

 and an eastern specimen so named for me by Prof. Smith has confirmed 

 my belief. I received it from nearly every one of my correspondents, 

 who sent mt phragt?iitidicoia mixed with that species, but had no difficulty 

 in picking it out, and from the very first associated it with the Calgary 

 form. My local series runs extremely near some dark streaky forms of 

 anterociara, and though I have for years kept the two in different series, 

 it is only during the last {qw months that I have at last succeeded in 

 drawing a line between them. I have a pair of specimens marked 

 " anterociara, co-type," by Prof Smith. The $ is the ordinary form of 

 that series, and I am at present assuming that it is of the same species as 

 the actual types. The ^ is my No. 337, but rather a rubbed specimen. 

 Prof. Smith still confuses the two, but that is probably only because I have 

 not yet sent him a good series of this, which is far less common than 

 anterociara. Reference to Dr. Holland's figure of viultilinea will show, 

 apart from the pale veins, three contrastingly pale streaks on the 

 primaries. The first runs from the base, below the subcostal vein, through 

 the cell, and thence obliquely to the apex. The second runs also from the 

 base to hind margin between median and submedian veins ; and the third 

 borders the inner margin, but does not run quite from the base. These 

 pale shades are a conspicuous feature in all my eastern multilinea and 

 my No. 337. Anterociara as a rule is very much more unicolorous, 

 but in the most streaky specimens, though the dark intervening shades are 

 occasionally almost as conspicuous, the,pale shades do not seem to contrast 

 in the same way. All my multilinea have a marginal row of minute black 

 specks on secondaries, usually most conspicuous beneath. These are 

 occasionally noticeable in anterociara, but are not nearly so constant. 

 Another characteristic of multilmea is the greater amount of smoky 

 shadings on primaries beneath. Comparing the two Calgary series alone, 

 besides the above-mentioned differences, anterociara has rather darker 

 secondaries, but altogether the variation is such that single specimens 

 sometimes require very careful comparison to determine. Whilst the 

 sexes in my eastern multilinea and Calgary anterociara are about 



