152 LEPIDOFTERA. 



-cVAA. Fore wings yellow, with long irregular dull red 

 stripes. R. hiirmdi, female. 



AAA A. Fore and hind wings silvery white. 



H. humuli, male. 

 These characters indicate the typical forms ; some of the 

 species vary greatly. 



1. H. hectus, Ochs. ; hecta, Stmul Cat. — Expanse 1\ inch. 



j\Iale, fore wings orange-brown striped v/ith silvery ; 

 female, pale brown striped with purplish-brown ; hind wings, 

 in both, purplish brown. 



Antennae of the male very short and inconspicuous, slightly 

 serrated ; head and thorax covered with long reddish- brown 

 or yellowish-brown hair-scales. Abdomen rather long and 

 of even thickness, thinly sprinkled with light brown scales. 

 Fore wings with costal and dorsal margins slightly rounded, 

 apex and hind margin in one complete curve, colour bright 

 orange-brown, faintly marbled with darker brown ; costa 

 with two or three cloudy orange spots ; a rather broad, 

 slightly curved, silvery-white, or yellowish-silvery stripe, from 

 the dorsal margin near the base, extends obliquely two-thirds 

 across the wing ; a second stripe of similar colour arises 

 broadly on the middle of the dorsal margin, but rapidly 

 narrows, and proceeds obliquely to nearly the apex of the 

 wing, being very commonly more or less broken on the way ; 

 outside this are usually some similar spots or dashes at the 

 apex, and along the hind margin ; cilia pale purplish-brown 

 dusted with darker brown. Hind wings dull purplish-brown 

 with large tufts of reddish-brown hairs at the base; cilia 

 purplish. 



Female similar in size and shape ; antenna3 equally short, 

 thread-like ; head and thorax light brown ; abdomen purplish- 

 brown. Fore wings pale reddish-brown with oblique trans 

 verse stripes of very pale purplish -brown in the positions of 

 the silvery stripes in the male, but far broader and unbroken; 



