March, 1907. BUSCK : REVIEW OF PHELONIIN^. 23 



This strongly marked dark species suggests by its color and gen- 

 eral habitus the genus Hysterosia, but has the venation typical of 

 the present genus. 



Phalonia grandis, new species. 



Labia! palpi ochreous white, suffused with dark fuscous exteriorly. Face, 

 head and thorax yellowish white. Fore wings yellowish white slightly suf- 

 fused with deeper ochreous on apical half. Three blackish brown costal spots, 

 one at base, one on the middle, and one at apical fourth. A large dark tri- 

 angular spot on the middle of the dorsal edge reaches with its tip up into the 

 middle of the cell; this spot is light olivaceous brown with darker fuscous 

 and black scales intermixed. Extreme terminal edge slightly sprinkled with 

 dark slate-colored scales. Cilia white. Hind wings silvery white with dark 

 fuscous short transverse striation nearly equally plain on both sides of the 

 wing. Abdomen ochreous fuscous. Forelegs blackish, posterior legs ochreous. 



Alar expanse: 30 mm. 



Habitat: Chimney Gulch, Golden, Colorado (Oslar). 



Type: U. S- N. M., No. 10225. 



This is the largest species of this genus described from Europe 

 or America both in regards alar expanse and width. It approaches 

 in size and color edwardsiana Walsingham, but is readily distin- 

 guished by the ornamentation of both fore and hind wings. 



Phalonia yuccatana, new species. 



Labial palpi creamy white, second joint shaded with reddish brown ex- 

 teriorly. Face, head and thorax yellowish creamy white with a slight rosy 

 tint. Fore wings creamy white with costal edge from base to beyond middle 

 narrowly dark reddish brown and with a similarly colored spot at apical 

 fifth of costa. Both of these markings contain transverse black streaks. 

 On the middle of the dorsal edge is a small, round, blackish spot preceded 

 and followed by a few black striations. On the disc just before the end of 

 the cell are two short, parallel, transverse, blackish brown dashes, sometimes 

 continued into a longitudinal series of small transverse streaks of which, how- 

 ever, only the outer ones near the terminal edge are persistent. Hind wings 

 light fuscous with darker veins and dorsal edge. Abdomen yellowish. Legs 

 creamy yellow. The entire insect has a slight rose tinge. 



Alar expanse: 18-20 mm. 

 Habitat: Nuecestown, Texas (C. L. Marlatt). 

 Type: U. S- N. M., No. 10226. 

 Foodplant: Yucca baccata. 



Bred in the insectary of U. S- Department of Agriculture from 

 pupae, collected by Mr. C L- Marlatt, April, 1896, on the above 



