318 GEORGE D. HULST. 



ENNOMID/E. 



FERNALDELLIN^. 



This subfamily erected for, and containing the typical genus only, 

 is a very peculiar one in apparent affinities. In not having vein 5 

 of the hind wings developed, it is placed with the Ennomidse as I 

 have defined that family. The structure of the hind wing in the 

 coalescing of vein 8 with the cell at base is exactly that of the Hy- 

 driomeninae. There exists also the comparatively rai'e peculiarities 

 of the prominent tubercle of the clypeus, the clawing of the fore 

 tibiae and the bipectinate antennae of the $ . The vestiture of the 

 head and thorax is the squamose hairy and scale hairy vestiture of 

 the Arctic Hydriomeninae, and the coloration approaches most nearly 

 certain genera of the Ennominae. 



FERNAL.Di:L.IiA n. gen. 



Type Jimetaria Grt. 



Palpi moderate, slender, with long scales at base, clypeus having 

 a rounded protuberance with a hollow within, with central rough- 

 ened raised space ; tongue developed ; antennae bipectinated in both 

 sexes ; fore tibiae with a strong terminal frontal claw, the tibiae them- 

 selves very short and stout ; hind tibiae with two pairs of spurs ; fore 

 wings 11 veins, 6 from a point with 7, 8 wanting, 10 from 9, 11 

 from cell ; hind wings 7 veins, 3 and 4 separate, 5 wanting in S ; 

 weak, not tubular in 9 ; 6 and 7 stemmed, anastomosing with cell 

 more than one-half its length in S , not quite one-half in 9 • 



I take great pleasure in dedicating this genus to Dr. C. H. Fernald, 

 of Amherst, Mass., whose ability as an entomologist and worth as a 

 man, command, second to no other, my admiration and respect. 

 Species. — F. fivietaria Grt. 



F. stalachtaria Streck. 



ENNOMIN^. 



The Ennominae are the largest of the subfamilies of the Geome- 

 trina of our fauna. There is among them, moreover, the widest 

 variation in ap})earance and structure, and they offer the greatest 

 difficulties in classification. 



The subfamily divides into two groups by the possessing or lacking 

 a peculiar fovea on fore wings beneath near the base of vein la in 

 the male. It is ordinarily easy to be seen, though there is difficulty 



