228 THE CANADIAN ENTOMOLOGIST. 



Structure and other characters, seems to belong here. I have described 

 one American species oi Senta, figured in the Buffalo Bulletin (1874); the 

 figures on this plate are in some copies coloured. Of the European genus 

 Tapinostoia, two North American species are described, one only have I 

 seen. The European genera Meliana and Calamia, with single species, 

 are apparently wanting in North America ; but we have a peculiar genus 

 in Ommaiostoia, with lashed eyes. Heliophila Hiib. { = Leucdnia Ochs.) 

 is, perhaps, the leading genus of the group ; and, like Ap ate/a, Agrotis, 

 Hadena and Mamestra, contains identical and representative species. 

 The eyes are hairy, the thorax smooth, the male antennae impectinate, 

 the body rather stout, the legs in some species thickly haired. Probably 

 a resemblance of ornamentation between Fseudoiimacodes niveicostatus 

 and the European Heliophila conigera, led Guenee, although the eyes in 

 the former are naked (but Guenee does not study this character), to 

 describe our species, which I am disposed to refer even to a different 

 sub-family, as belonging to Leucania. We have probably one identical 

 species oi Heliophila with Europe : H.pallens. Our H. pseudargyria seems 

 to be allied to lithargyria^ while we have a number of species resembling 

 the European obsoleta, straminea. comma, littoralis, etc. No species 

 have yet been found in North America at all resembling the European 

 evidetis, conigera, vitelUna, turca. The well-known " Army Worm " 

 Heliophila unipu?icta, has been taken in England, and in the Madeira 

 Islands, probably introduced from North America. Although single 

 species may have now a wider range, I think we must conclude that the 

 genus Heliophila, in North America, belongs to the European element, 

 and is descended from a former common circumpolar fauna. These 

 insects must be collected at light in the neighborhood of swamps and 

 waters by which reeds and flags grow. In the stems of these we may 

 find, in June and July, the grown caterpillars or pupae of Nonagria. The 

 European genera Mycterophis, ArgyroSpila, Mythimna, with single or 

 few species, are undescribed in our fauna. It seems probable that our 

 Nonagrians are quite incompletely known, and that in North America, 

 from which twenty-seven species oi Heliophila are described, while Europe 

 numbers thirty-two, many interesting discoveries await the entomologist in 

 the present group. I have referred here the Californian genus Zosteropoda, 

 from the shape of the wings and the tufted legs ; and, as in other tribes, 



