194 THE CANADIAN ENTOMOLOGIST 



AVIk. {decolor Morr.). A study of the genitalia of a number of 

 Eastern specimens convinced us that there were two very closely 

 allied species associated under the one name and occurring apparent 

 ly throughout the same general territory; the one form has the 

 primaries very dark purple-brown with scarcely any contrasting 

 shades and with small reniform and orbicular; the other form has 

 a mere reddish cast to the purple-bro\^^n of primaries, the reniform 

 and orbicular are often distinctly larger and the secondaries of 

 the cf appear to be paler. The two forms are extremely alike, 

 and we must confess that individual specimens have caused us 

 considerable trouble to place. The differences in the cf genitalia 

 are slight but constant, the first form having a shorter inner 

 branch to the harpe, the outer branch being not so evenly rounded 

 at its base and much longer, whilst in the second form the two 

 branches form a very regular U, and the inner is only slightly 

 shorter than the outer. We found considerable difficulty in de- 

 termining whether names were valid for each of these species. 

 Declarata Wlk., the oldest name available, we knew was based on a 

 Vancouver Island male; we had seen the type once but this was 

 before we had realized the existence of two species; from the 

 specimens before us from this region we believed it would apply Jo 

 the second form and used it in this sense in our list. Campestris 

 r.rt., another available name, was first described in the October 

 number of the Can. Ent., 1875, VII, 188; a few months later 

 (December) a redescription appeared in the Proc. Acad. Nat. 

 Sci. Phil., p. 423. The specimens from which the description was 

 drawn were from Orillia, Canada, (Norman); N. Y. (Mead); 

 Vancouver Is. (Hy. Edwards), and in the December number of 

 the Can. Ent. for the same year Grote figured the Orillia speci- 

 men, a female, (PI. 1, Fig. 6) designating it (p. 227) as the type. 

 We believe that this action on Grote's part must be taken as 

 definitely fixing the type specimen and that, therefore, the speci- 

 men in the British Museum, a 9 from New York, which bears 

 the type label can at the most be considered a Paratype. Very 

 possibly the Orillia specimen is also in the British Museum as 

 Hampson's catalogue mentions a female from Canada (Norman) ; 

 if so it should be mar-ked as t>'pe; it will be interesting to dis- 

 cover whether the two specimens, the real type and the pseudo- 



