no. i. BOMBYCINE MOTHS OF NORTH AMERICA— PACKARD. Ill 



Disk of ocellus of hind wing red or orange. 

 Fore wing blunt at apex, normal. 



Ocellus of hind wing with white center pyrrhomelas Walker. 



Ocellus with pink center orodina Schaus; PL LXXIX, fig. 6A. 



Ocellus with black center pygmaea Schaus. 



Fore wing of <? falcate, outer margin concave throughout janeira Westwood. 



Fore wing pointed at apex, outer margin bulging below. 



Ocellus of hind wing with a black central pupil arguta Boisduval. 



Ocellus of hind wing with white center only. 



Smaller; more rosy; marginal space of fore wing broader, pale-shaded, subterminal line 



relieved irminia Cramer. 



Larger, not rosy, subterminal space more restricted and nearly unmarked. 



Somewhat larger episcopus Boisduval. 



Somewhat smaller abas Cramer. 



Fore wing with subapical prominence on outer margin excavate narrowly below. 



Disk of hind wing orange or yellow orodes Boisduval. 



Disk of hind wing olive gray. 



Fore wing with the lines diffused; S without prominence on margin, small in 9 ; a 



blackish subapico-submarginal spot in both sexes vala Kirby. 



Lines of fore wing distinct; prominence on margin distinct; no subapical black spot. 

 Disk of ocellus of hind wing orange; median line of fore wing faint, .nausicaa Cramer. 1 



Disk of ocellus brick-red; lines of fore wing all alike plicata Herr.-Schaeff. 



Ocellus of hind wing cloudy, obsolescent, blackish, not distinct nor contrasted. 



Basal area of fore wing contrastingly dark, edged by pale lobate inner line maconia Druce. 



Basal area if dark not conspicuously edged. 

 Outer line with inner pale shading. 



Larger, blackish powdery myops Walker. 



Smaller, browner, markings not obscured by powderings inornata Walker. 



Outer line dark, not relieved by pale shading obscura Schaus; 2 PI. LXXX, fig. 5.] 



COLORADIA Blake. 



Coloradia Blake [Proc. Ent. Soc. Phila., II (1863), p. 279.] 

 Eudyaria [Grote, Mittheil. Roemer, Mus. No. 6]. 

 Eudyaria Kirby, Syn. Cat. Lep. Het., I [p. 744]. 



Imago. — $ and ?. Head of moderate size; front rather narrow, scales hair-like, long, 

 dense, uneven; eyes moderate. Antennae as in Hemileuca and PseudoTiazis; the joints are 

 short, the vestiges of the distal pectinations varying in length (in ft pandora nearly three times 

 as long as in ft venata); in ? [not described]. 



Palpi variable in length, either small, not distinct, not reaching the front (ft pandora), or 

 longer, distinct, extending beyond the front and drooping; third joint not distinct, the hairs at 

 the end being rather long (ft venata). 



Body thick and hairy; abdomen thick and rather broad. 



Fore wings rather narrow, costa straight, not much curved toward the apex, the outer 

 edge much shorter than the inner. Hind wings rather narrow, the outer edge short and rounded. 



Venation: [Dr. Dyar notes of ft loiperda: "Veins 6-7 of hind wing very variable, ranging 

 from connate to long-stalked, even differing on the two wings of the same specimen." These 

 are veins IIIj, TV,, of the present work.] 



Markings: The wings of both pairs either with indistinct diffused broad basal and extra- 

 discal bands (ft pandora), or none at all (ft venata), in which case the veins themselves are 

 distinctly marked with darker scales than on the rest of the wing; a black round discal spot, or 

 a small obscure irregular patch on both wings (ft venata). Antennae pale yellowish in ft 

 pandora, or dark (ft venata). 



Larva.— [See under ft pandora.] 



This genus is characterized by a much stouter body and narrower wings than in Pseudo- 

 Tiazis or Hemileuca, with which it is related by its adult and larval features. 



Geographical distribution. — A neogaeic genus, occurring in Buenos Aires and in the western 

 United States from Colorado to the Pacific coast. 



1 [According to Kirby, A . Tiausicaa is the type of Byperchiria. He gives its range as Mexico to Brazil. ] 



2 This is probably an Hylesia allied to Sficratlacus violascens Maass. & Weym. 



