236 THE CANADIAN ENTOMOLOGIST. 



Pachylia Ficus Linn. 

 Didasys Bejje Grote. 

 Lymire Edwardsii Grote. 

 Eupseudosoma floridum Grote. 

 Euhalisidota longa Grote. 

 Byssodes obrussata Grote. 

 Urapteryx floridata Grote. 

 Mecoceras Peninsularia Grote. 

 Almodes rivularia Grote. 



These last eight species are presumed to be distinct from closely allied 

 species inhabiting the West Indies. They have been colonized from thence 

 and in part have undergone some local modification which is presumed 

 to have progressed far enough to warrant a distinct title. It is in the 

 same case with the first category ; there will probably be found all grades 

 of relationship in these Florida species, and we shall have to express as 

 best we may the amount of these differences in our nomenclature. A 

 sufficiently difficult task ! And the " lumpers " will have to be fought 

 against until all the life histories are known and have been quietly com- 

 pared. 



IV. Species which are probably mere Sununer Birds of Passage from 

 the West Indies and South America., following the Gulf Stream 

 or Aided by Prevailing Winds. 



Diludia Brontes Drury. 

 Argeus Labruscse Linn. 

 Thysania zenobia Crainer. 

 Noctua agrippina Cramer. 

 Brotis vulneraria Hilbiier. 

 Sylectra Erycata Cramer. 



These tables will rather show of what material our fauna is made up, 

 what its relationships are, than any attempt to classify with precision a 

 part of our genera and species according to their probable origin and 

 distribution. But very Httle has been yet published, so that full lists can- 

 not be compiled ; the foregoing are mainly drawn up from my own experi- 

 ence and work. 



I believe that these conclusions as to the origin of our genera may be 

 properly criticized from a better knowledge of the facts, but I also believe 



