— ii6— 



M. olbiella, n. >p. 



Expands 21 min. Palpi fu~cous gray ; head ochreous ; abdomen light ochreoiis ; 

 thorax reddish ochreous ; fore wings along costa to subcostal vein whi:e, with a few 

 scattered black scales, this band reaching to outer cross-line ; the re>t of the wing 

 reddish brown, varying in different specimens through reddish ochnous to ochreous, 

 all with a few .-cattered black scales ; basal line indeterminate or indistinct, outer line 

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

 waidly with blackish scales and outwardly with blackish narrow marginal space ; 

 hind wings pelUuid fuscous, margin becoming very dark. -Coloratlo. 



Altoona, n. gen. 



Fore wings II veins : 4 and 5 stemmed, 10 separate ; hind wings 7 veins : 2 at 

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

 present ; antennae of ^ bent over base with lult of scales in bend. Type : opacclla, 

 Hulst. 



Welaka, n gen. 



Fore wings II veins: 10 separate, 4 and 5 separate; hind >vings 7 veins : 2 at 

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

 ascending, end member horizo itul, 2nd and 3rd members long ; maxillary palpilong; 

 antennre of r5 simple. Type: iniiltilinceL'a, Hulst. 



Cayuga, n. gen. 



Fore wings 11 veins : 3 and 5 separate ; hind wings 7 veins : 2 at angle, 3 and 

 5 stemmed ; antenna of (^ with meiidjers broad, toothed, pubescent, bent above base 

 with tuft of scales in bend ; labial palpi long, horizontal, end member drooping; 

 ocelli present ; tongue wanting. Type : ^cmniatdHa, Hulst. 



Petaluma, n. gen. 



Fore wings 10 veins : 8, 9 ar.d 10 stemmed, 3 and 5 sti.mmed ; hind wings 7 

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

 tubercle ; labial palpi drooping ; maxillary palpi invisible ; ocelli present ; antennte 



of q' simple. Type: illihtlla, Hulst. 



Uinta, n. gen. 



Fore wings 9 veins : 4 and 9 wanting, 3 and 5 separate ; hind 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 ; antenn;-e of (^' bent 

 above base, 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 



