208 NOCTXJIB^. 



*3820. Andropolia acera. (Plate CXXVIII. fig. 4.) 



Folia acera, SmitL, Pr. U.S. Nat. Mus. xxii. p. 472 (1900); Dyar, Cat. 

 Lep. N. Am. p. 120. 



Head, thorax, and abdomen pale purplish grey ; frons with brown 

 bar ; tegulae whitish at base and with black medial line ; patagia 

 with faint dark siibterminal line. Fore wing pale purplish gre}', 

 the medial area tinged with rufous, the veins irrorated with black 

 scales ; a sinuous black streak below basal half of coll ; a black 

 streak above inner margin from near base to middle ; antemedial 

 line obsolete or hardly traceable, double, strongly angled outwards 

 in submedian fold and above inner margin ; claviform defined by 

 black, acute at extremity and connected by a slight brown streak 

 with the postmedial line ; orbicular and roniform large, defined by 

 brown and black scales, open above, the former oblique elliptical 

 nearly or quite connected with the latter ; traces of a brown medial 

 shade in cell and from claviform to inner margin ; postmedial line 

 almost obsolete or indistinct, double beyond the cell, then dentate ; 

 subterminal line absent or represented by brown streaks in the 

 interspaces of terminal area, more distinctly marked at middle and 

 above tornus; cilia reddish grey. Hind wing greyish tinged with 

 ochreous, paler at base ; cilia whitish ; the underside whitish tinged 

 with fuscous and with slight dark irroration. 



Hah. U.S.A., Washington, Pullman, Seattle. Exp. S 42, 5 

 52 millim. This species is unknown to me ; figured from a drawing 

 from type in Coll. J. B. Smith. 



Genus LITHOM(EA. 



lype. 



Liihomoia, Hlibn. Yerz. p. 244 (1827) rectihnea. 



Hyjypa, Dup. Cat. Meth. p. 161 (1844) rectilinea. 



Proboscis fully developed ; palpi obliquely upturned, the 2ncl joint reaching 

 about to middle of frons and fringed with long hair in front, the 3rd short ; 

 frons smooth, with ridges of hair above and between antennaj ; eyes large, 

 round; antennse of male with short branches dilated at extremity, the apex 

 ciliated ; thorax quadrately clothed with hair and haii--like scales, the pro- 

 and metathorax with spreading crests; tibiie moderately fringed with hair; 

 abdomen with dorsal series of crests, the crests on 3rd and 4th segments, very 

 large. Fore wing with the apex rounded, the termen evenly curved and 

 hardly crenulate ; veins 3 and 6 from near angle of cell ; (5 from upper angle ; 

 9 from 10 anastomosing with 8 to form the areole ; 11 from cell. Hind wing 

 with veins 3, 4 from angle of cell ; 5 obsolescent from below middle of disco- 

 cellulars; 6, 7 from upper angle or shortly stalked ; 8 anastomosing with the 

 cell near base only. 



A. Fore wing with the whole medial area tinged with red- 



brown reciUbiea. 



B. Fore wing with the medial area not tinged with red- 



brown towards costa. 

 a. Fore wing with the antemedial line entire. 



a^. AntenujE of male with short branches, metathoracic 



crest not rufous xylbioides. 



