Genus Thanaos 



(10) Thanaos horatius, Scudder, Plate XLVIII, Fig. 15, 5 

 (Horace's Dusky-wing). 



Butterfly. Smaller than T. juvenalis, which it resembles in 

 the long transverse series of translucent spots. It is, however, 

 paler on the upper side of the wings, and more profusely 

 mottled on the hind wing both above and below, though there 

 is considerable variation in this regard. Expanse, 1.65 inch. 



Early Stages. The caterpillar probably feeds on the Legu- 

 minosce. We know very little about the life-history of the species. 



The butterfly ranges from Massachusetts to Texas. 



(n) Thanaos naevius, Lintner, Plate XLVIII, Fig. 3, ? 

 (Naevius 1 Dusky-wing). 



Butterfly . This insect is closely allied to T. petronius, but 

 the translucent spots on the fore wing are smaller, and there is 

 generally a light spot near the costa before the three subapical 

 translucent spots. 



Early Stages. Unknown. 



The habitat of this species is the region of the Indian River, 

 in Florida. 



(12) Thanaos pacuvius, Lintner, Plate XLVIII, Fig. 9, ? 

 (Pacuvius' Dusky-wing). 



Butterfly. Small, with the fore wings on the upper side 

 rather regularly banded with dark brown upon a lighter ground. 

 The hind wings are almost solid black above, with the fringes 

 toward the anal angle pure white. Expanse, 1. 15-1.30 inch. 



Early Stages. Unknown. 



This species occurs in Colorado, Mexico, and Arizona. 



(13) Thanaos clitus, Edwards, Plate XLV, Fig. 8, $ (Clitus). 

 Butterfly. Larger than the preceding species. The hind 



wings are solidly deep black, fringed broadly with pure white. 

 The fore wings of the male are dark, of the female lighter. Ex- 

 panse, 1.60-1.75 i ncn - 



Early Stages. Unknown. 



The habitat of this species is Arizona and New Mexico. 



(14) Thanaos funeralis, Lintner, Plate XLVIII, Fig. 12, $ 

 (The Funereal Dusky-wing). 



Butterfly. Closely allied to the preceding species, of which 

 it may be only a smaller varietal form. Expanse, 1.35 inch. 

 Early Stages. Unknown. 

 Funeralis occurs in western Texas and Arizona. 



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