THE CANADIAN ENTOMOLOGIST. 89 



are all brought together under the same generic name without heterogeneous 

 intermixture.''' 



To determine whether homogeneous groups were the rule or the 

 exception, I made an analysis of the Verzeichniss from the beginning 

 as far as the Astyci (Hesperidae), looking out every species and noting 

 its place in Kirby, and this is the result. There is occasionally a coitus 

 co-extensive with the limits of a modern genus, but in all cases solely by 

 reason of some strong peculiarity of color or shape ; as Chrysophanus, 

 which includes the coppers, and is equivalent to Doubleday's genus of 

 same name. But out of 255 coitus preceding the Hesperidae there are 

 but 35 such, and of these, 13 have but one species each, 6 have two and 

 6 have three ; so that 25 of the 35 coitus contain but 3 species or less. Many 

 other coitus are homogeneous, but of this class the species under two, three or 

 several are lumped together by Kirby in one genus, so that such coitus are 

 plainly regarded as equivalent to something less than genera, and the remaining 

 coitus, 106 of the 255, are made up of species assigned by Kirby not only to 

 distinct genera, but of subfamilies and families. For example, 1st Stirps, 

 2nd family, 4 th coitus, Eueides, under which stand 7 species. In Kirby 

 1 goes to Eueides Hub., 2 to Lycorea Doub., 2 to Melineae Hub., and 

 1 to Tithorea Doub. 



Or 5th coitus, Melineae, 5 species, 1 to same, Hub., 3 to Heliconius 

 Latr., 1 to Tithorea Doub. 



Or 3rd family, 1st coitus, 10 species, 2 to Eueides Hub., and 8 to 

 Heliconius Latr. 



And so Heliconius picks species at random fronr the 2nd family, 3rd 

 and 5th coitus, and from 3rd family, 1st, 2nd, 3rd and 4th coitus, and 

 from 4th family, 1st and 2nd coitus. And Eueides from 2nd family 4th 

 coitus, 3rd family 1st coitus. 



Or 2nd Stirps, Limnades, which comprises the Danaidae, 3rd family, 

 4th coitus Didonis, 2 species only, one of which stands in Kirby as 

 Didonis Hub., the 56th genus of the 8th sub-family Nymphalinae, the 

 other as Elymnias Hub., 1st genus of 3rd sub-family Elymninae. Now 

 the coitus Elymnias stands in the 6th Stirps, Hamadryades, 4th family 

 5 th coitus, directly among the Vanessans, the species Antiopa being in the 

 coitus next preceding, and Prorsa in the one next following ! 



Under the head of Euploea stand 7 species, 6 of which are put by 

 Kirby into Danais Latr. and one in Hypolimnas Hub., and by a curious 

 swap, the species which Hiibner put into three other coitus are lumped 



