THE CANADIAN ENTOMOLOGIST. 125 



tib''fe normal, spurred, outer spur about half as long as the inner; wings 

 long, narrow, primaries with slightly convex costal margin, well rounded 

 apex and rather oblique outer margin ; inner margin straight ; secondaries 

 slightly crenulate with sharp angle at junction of inner and outer margins ; 

 primaries with vein R^ from about middle of cell ; aréole long, narrow, 

 exceeding the cell by about half its own length ; R^, R3 and R^ stalked 

 from apex of aréole ; R5 from a point with Rg ; M^ from lower angle of 

 aréole ; Mg from centre of discocellular ; M3 and Cu^ from lower angle of 

 cell ; Cug from near angle ; anal vein parallel to inner margin ; secondaries 

 with vein Mg absent, vein S. C. joined to the cell for about yi of its 

 length ; veins R and Mj stalked ; M3 and Cu^ connate from lower angle of 

 cell ; Cug from near angle ; 2nd anal very close to inner margin ; frenulum 

 present. 



The genus is remarkable in lacking vein M2 of secondaries and 

 having the subcostal vein distinctly united with the cell, which would 

 place it in the family Fernaldellinœ of Hulst. The type species possesses 

 very little resemblance to specimens of the genus Fertialdella and is in 

 fact very distinctly Hydriomenidva general appearance. We take pleasure 

 in naming the genus after our friend Mr. J. A. Grossbeck. 



Grossheckia semitnaculata^ sp. nov. 



Palpi, thorax and abdomen dark gray, latter pale ochreous beneath ; 

 primaries with the costal half of wing alone showing maculation ; below 

 cubital vein, with the exception of the inner margin, the whole area is 

 dull gray-brown ; costal half of primaries brown, suffused with light and 

 dark gray ; a slight black streak at base of wing ; from costa near base an 

 obscure dark shade extends obliquely across wing to cubital vein, bordered 

 outwardly slightly with gray ; at apex of cell a large white quadrate patch ; 

 costal area above this patch largely dark smoky-brown with several pale 

 gray streaks, beyond the patch the. brown ground colour forms a small 

 round blotch ; from apex of wing inwards nearly to white patch a diffuse 

 gray shade extends, bordered inferiorly by a slightly notched dark line 

 ending in a dark shade, from which two curved dark lines, parallel to 

 outer margin, arise, extending to vein Cug and enclosing a dark gray 

 blotch ; terminal area shaded with dark gray ; cubital and median veins 

 marked with black ; a black shade, broken twice by gray scaling, extends 

 narrowly along the inner margin ; secondaries rather pale smoky, fringes 



