10 



H. ARCiFERA Dyar. (PI. VI, fig. i.) 



Ravigia arcifera Dyar, Brook. Inst. Mus. Sci., Bull.. I, 8,' p. 200 (1906). 



"Superficially much like Hypopta Iriarclata Schaus, but differing in vena- 

 tion. Sexes alike, the male smaller with the anal hairs tufted. Gray, antennal 

 shaft white. Wings gray, lightly strigose in darker ; a curved brown arc at 

 apex, edged with whitisli ; a median bar across wing and a broken subbasal one, 

 brown-black, whitish edged ; a slender black line before tornus, composed of a 

 confluence of strigae in a dark shade. Hind wings dark, lightly strigose-reticu- 

 late. Expanse S , 28 mm., $ , 38 mm. 



One S, 2 9 9, Brownsville, Tex. (Doll.)." 



We do not know this species. 



H. PALM ATA B. & McD. (PI. IV, fig. I.) 



Hypopta palmala Barnes & McDunnough Ent. News, XXI, 465 (1910). 



" S Palpi porrect, extending beyond front, antennae strongly bipectinate, 

 shaft white; collar and thorax largely white, sprinkled with black and gray 

 scaling ; abdomen light brown, rather thickly haired at base and with slight 

 blackish anal tuft; primaries white, shaded strongly with dark smoky brown 

 along inner margin, below the cell from base of Cu. to anal angle, and beyond 

 the cell along veins Mi and M2, the dark scales extending slightly upwards to- 

 wards apex ; veins, especially the branches of median and cubitus, outlined in 

 dark, the dark scaling broadening out at extremity of veins to form small tri- 

 angular patches along outer margin, the intervening white patches presenting a 

 fan-like appearance ; costal margin and cell remain entirely white, as well as a 

 long oval patch below the cell between cubitus and ist anal, and a sharply pointed 

 shaft extending between the two anal veins to their point of junction; fringes 

 dusky, composed of black and white hairs ; secondaries light smoky brown ; 

 veins slightly darker; fringes whitish. Beneath gray, lighter at base with veins 

 sharply outlined in darker. Expanse 22-26 mm." 

 Hab., Gila Co., Ariz. 2 $ $ . 



The only point of difference in venation between this species and 

 ambigua is that the former lacks the subcostal cross-bar on secon- 

 daries. 



Genus Pomeria n. Gen. (T^Y?t itzalana Stkr.) 



Palpi porrect, not extending beyond front, third joint conical; vestiture of 

 front and thorax composed of hair-like scales ; antennae in $ strongly bipec- 

 tinate ; posterior tibiae with single pair of apical spurs ; frenulum well developed ; 

 primaries with cross-vein between ist and 2nd anal veins in outer fourth; ist 

 anal vein obsolescent; Cui, Ma and M- from near angle of cell, M2 continued 



