41 



from the iircceiling by the lack of brown suiifiision on primaries and 

 the greater prominence of the transverse lines: .1/. flcxilwcalis Dyar; 

 fresh specimens have a distinct greenish tinge over the whole of the 



primaries. 



Genus Decaturia gen. nov. (Type D. pcctinalis sp. nov.) 



Antennae in $ bipectinate, in 9 simple; proboscis and maxillary palpi 

 absent; labial palpi in $ short, tufted, in 9 long, rostriform ; hind tibiae with 

 two pairs of equal spurs ; primaries with vein Ri from the cell ; Ri and Ri 

 stalked; R, lacking; Mi from below upper angle of cell; Mj and Ma stalked; 

 Cui from lower angle of cell; Cu; from well before angle; anal vein branched. 

 Secondaries with the venation as in the previous genus. 



The genus is easily recognized by the pectinate antennae of the 

 i and the lack of vein R, on primaries. 



D. PECTiNALis sp. nov. (Plate III, figs. 8 and ii.) 



Primaries pale ochreous, suffused with white; some slight white shading 

 at base of wing ; basal portion of costa dark, outer portion beyond t. a. line 

 largely white ; t. a. line dark, strongly outwardly oblique, from costa 1/3 from 

 base to middle of inner margin, slightly angled below costa, edged broadly 

 outwardly with white ; a dark oblong dash in cell shaded below with white, 

 which color tends to extend upward to costa at inception of t. p. line and 

 often contains a fine dark line at end of cell, which may or may not join the 

 cellular dash ; t. p. line white, close to outer margin, upper half straight, lower 

 half inwardly oblique; a dark, oblique apical shade; terminal area largely 

 shaded with white ; a fine black terminal line ; fringes long, gray, paler out- 

 wardly and slightly mingled with white. Secondaries uniform smoky brown. 

 Beneath smoky, secondaries paler. Expanse, 13-16 mm. 



Habitat: — Redington, Ariz.; Santa Catalina Mts., Ariz.; Baba- 

 quivera ?^Its., Ariz. 14 S c5 , 6 9 9 . Types, Coll. Barnes. 



The 9 s are on the whole somewhat larger and paler than the 

 c5 's ; our series does not show a great deal of variation, the principal 

 feature Ijeing the greater or less prominence of the cellular dash. The 

 pectinate antennae in the 3 easily separate the species from its rather 

 similarly marked allies. 



Genus AlpheiOides gen. nov. (Type ."). parvulalis sp. nov.) 



Antennae ciHate; proboscis and maxillary palpi absent; labial palpi in $ 

 short, tufted; hind tibiae with two pairs of equal spurs; primaries with vein 

 R: stalked with Rs and Rs. arising from R3 before R»; R» absent; remainder of 

 venation similar to that of preceding genus. 



