PHYCITINAE 
MEGASIS RUBRITHORACELLA sp. nov. (PI. VII, Figs. 7, 9). 
é. Palpi gray, heavily sprinkled with black; tegulae and patagia reddish, 
central portion of thorax black; abdomen ochreous with a paler ring at the 
base; primaries dark smoky gray, slightly reddish at extreme base; maculation 
rather indistinct; t. a. line scarcely paler than ground color, slightly outwardly 
oblique, straight, followed by a black shade, a pale curved mark extending along 
median vein and discocellulars; t. p. line pale, inwardly oblique from costa to 
vein 5, then angled slightly outwardly and minutely dentate on veins 2-5, running 
subparallel to outer margin, preceded by a blackish shade, strongest at costa; a 
slight dark shade beyond t. p. line at apex; terminal broken dark line; fringes 
concolorous. Secondaries evenly pale smoky with paler silky fringes. Beneath 
pale smoky with traces of t. p. line on costa of primaries, otherwise immaculate. 
@. Smaller and chunkier than ¢@ ; primaries darker and much more clearly 
and heavily marked; black shades following t. a. and preceding t. p. lines strong 
and broad; the pale curved mark in cell contains a small discal spot; sec- 
ondaries deeper smoky. Expanse ¢@ 28 mm., 2 25 mm. 
Hasirat. White Mts., Ariz. (Lusk). 1 6,1 9. Types, Coll. Barnes. 
Related to caudellella Dyar but distinguished among other things 
but the reddish tegulae and patagia. 
BeERTELIA Gen. nov. (Type B. grisella sp. nov.). 
Antennae in ¢ with strong posterior tuft of hair on basal joint, bent, with 
prominent sinus, but without tuft in same, strongly unipectinate, the pectinations 
gradually lessening in length towards apex; labial palpi ascending, 3rd joint long, 
cylindrical; maxillary palpi tufted slightly at extremity, flattened against front; 
front slightly tufted; primaries 11 veined, 2 and 3 well separate, parallel, 4 and 
5 stalked, 8 and 9 stalked, 10 from the cell; secondaries 8 veined, 2 from well 
before angle, 3 from lower angle, which is considerably produced, 4 and 5 
stalked for 1/2 their length, 6 from upper angle, 7 and 8 stalked. 
This genus is allied to Monoptilota Hulst but lacks the tuft in 
sinus of ¢ antennae and has a tuft on basal joint not present in Hulst’s 
genus; the pectinations are also longer. Veins 4 and 5 of primaries 
are stalked in our genus and not separate. 
B. GRISELLA sp. nov. (Pl. VIII, Fig. 12). 
Palpi, head and thorax gray; abdomen ochreous, paler at base; primaries 
pale gray, sprinkled heavily with fuscous, maculation indistinct; a faint blackish 
streak through cell from base to t. a. line, above which costa is paler gray than 
remainder of wing; t. a. line represented by an outwardly oblique black streak 
at costa and a pale incurved mark above inner margin, preceded by slight dark 
