206 THE CANADIAN ENTOMOLOGIST. 



Aplodes Hudsonaria^ n. sj). — Expanse, 31 mm. 



Palpi and front rose-pink, tlie latter pale on the front edge, but not so 

 distinctly white as in A. mimosaria. 



Head white above and between the antennae ; collar green ; antennae 

 white above at l)ase, brown towards the tij^s ; thorax bright green ; 

 abdomen, first three segments greenish, each bearing a white dorsal spot ; 

 rest of the abdomen white. Legs white, anterior tibias pink on inner side, 

 and second pair of tibite with three pink spots, one at each extremity and 

 one in the middle. 



^\^ings bright green, of the tint of ^. mimosaria, with two white lines 

 on each wing. 



On the fore wing the basal line is irregularly curved, fading out 

 towards the costa ; outer line almost straight, not quite parallel to the 

 outer margin (as is the similar line in ??iimosaria), but inclining towards 

 that margin as it nears the costa, which it does not quite reach ; costa 

 white above, pink at the base beneath. Hind wing, basal line rather 

 straight, extending from costa to just below median vein, then obsolete ; 

 outer line commencing on costa, nearer to the base than usual, curving 

 strongly below median vein, so that if produced, on the same curve, from 

 its vanishing point just below vein two, it would reach the base of the 

 wing instead of the inner margin. 



In the direction of this line this species differs from all other species 

 of American Geometriiice known to me. 



Discal points on fore wings reddish in one of the type specimens, 

 obsolete in the other ; on hind wings discal marks are elongated and 

 greenish, as in mimosaria ; the discal marks on all wings are more 

 evident on the under-sides. Fringes white, spotted with pink. 



This species seems to represent A. mimosaria in the west, but can be 

 quite easily distinguished by the peculiar outer line on the secondaries 

 and by other points noted in the description. 



Types, two males, taken at light on July 7th, 1905, by Mr. A. F. 



Hudson, at a point on the Red Deer River, 50 miles north-east of 



Cileichen, Alberta, and kindly presented to me by Mr. F. H. Wolley Dod. 

 A third male is in Mr. Wolley Dod's collection. 



Since writing this description, I have seen two female moths, taken 

 at Victoria in August, 1903, by Mr. A. W. Hanham, which appear to 

 belong to this species. The only difference I notice is that the outer line 

 on the hind wing is more distant from the base of the wing in the Victorian 

 specimens than in the Alberta types. One of Mr. Hanham's specimens 

 has been generously given to me, the other remains in his own cabinet. 



