— ii6— 



M . olbiella, n. sp. 



Expands 21 mm. Palpi fuscous gray ; head ochreous ; abdomen light ochreous ; 

 thorax reddi>h ochreous ; fore wings along co.^ta to subcostal vein whi;e, with a few 

 scattered black scales, this band reaching to outer cross-hne ; the ie~t of the wing 

 reddish brown, varying in flifi'erent specimens thioiigh reddish ochrtous to ochreous, 

 all with a few >cattered b!ack scales ; basal line indeterminate or indi-tinct, outer line 

 very close to nargin and parallel with it, broad, grayish, more or less edged in- 

 waidly with blackisli scales and outwardly with blackish nariow marginal space ; 

 hind v\ings |)el'u-id fuscous, margin becoming very dark. — Ccjjorailo. 



Altoona, n. gen. 



Fore wings II veins : 4 arid 5 stemmed, lo -eparate ; hind wings 7 veins : 2 at 

 angle, 3 and 5 stemmed ; tongue wanting ; labial palpi horizontal ; maxillary palp' 

 present ; aiUennK of q^ bent over base with tult of scales in Ijend. Type : opacc'/a, 

 Hubt. 



Welaka, n g.-n. 



Fore wings II veins: 10 separate, 4 and 5 separate; hii d \\'iiigs 7 veins : 2 at 

 angle, 3 and 5 long stemmed, 7 and 8 stemmed ; tongue wanting, labial palpi long, 

 ascending, end member hoiizo ital, 2nd and 3r(l members long ; ma.xiilary palpi long; 

 antennie of rj simple. Type: j/niUi/iiLel.'a, Hnlst. 



Cayuga, n. gen. 



Fore wings II veins : 3 and 5 separate ; hind wings 7 veins ; 2 at angle, 3 and 

 5 stemmed ; antenna; of g^ witli mend^ers liroad, tootlied, pubescent, bent above base 

 with tuft of scales in bend ; laMal palpi loig, hoi izont'il, end luember drooping; 

 ocelli present ; tongue wanting. Type : i^i ntinati;,7a, Hulst. 



Petaluma, n. gen. 



Fore wings 10 veins : 8, 9 and 10 stemmed, 3 and 5 stemined ; hind wings 7 

 veins ; 2 at angle, 3 and 5 stemmed ; tongue wanting ; clypeus with a cone shaped 

 tubercle ; labial |)alpi drooping ; maxillary palpi iiivi.-ible ; ocelli present ; antenna; 

 of rj' siinple. Tyj^e : illibtlla, Hulst. 



Uinta, n. gen. 



Fore wings 9 venis : 4 and 9 wanting, 3 and 5 separate ; huid wings 7 veins ; 3 

 and 5 separate, 2 far from angle, 7 and 8 separate to base ; labial palpi horizontal, 

 heavy, long ; maxillary palpi strong, heavily scaled on end; antennre of g bent 

 above ba-c, pubescent ; ocelli present ; tongue wanting ; legs shorter and more heavy 

 than usual. Type : oreadella, Hulst. 



U. oreadella, n. sp. 



Palpi fuscous gray, as is also the head ; thorax blackish gray ; abdomen blackish 

 gray, becoming fuscous and yellowish anally, each segment except basal edged nar- 

 rowly with gray ; fore wings dark fuscous, darker at base ; basal line not evident ; 

 outer line broad, blackish, a marginal broad line also blackish ; at base of center of 

 middle field a lengthened black point; hind wings fuscous, shining, margin darker; 

 beneath even fuscous on all wings, margins darker. — Colorado. 



Acrobasis albocapitella, n. sp. 



Expands 14 mm. Palpi, head and thorax snow white ; abdomen white, slightly 

 stained with fuscous ; fore wings white at base, with a faint reddish fuscous stain along 

 costa and inner margin ; basal line dark brown, rather indistinct ; wings beyond 



