AMERICAN LEPIDOPTERA. 261 



dear gray, peppered with black atoms basally and aloug costa; three subquadrate 

 blackish costal blotches not sharply defined, basal, central and outwardly in the 

 places corresponding to the cross-lines of L. monlanata : these are not followed by 

 any indications of cross-lines or of rows of spots across the wings; discal spots 

 large, black, distinct, lengthened as in L. montantda ; hind wings even, glistening 

 white, with dark discal spots; beneath light bright gray, the markings of the 

 fore wings faintly showing. 



Alert Island, Alaska. Differing from T. montanata mostly in the 

 decided difference of the ground color, the lack of black dots on the 

 veins of fore wings, and the lack of the lines or rows of dots across 

 the fore wings. The lobe on the hind wings of the % is also some- 

 what different in structure. 



8. SCELIDACAIVTHA n. gen. 

 Type triseriata Pack. 



Palpi moderately long, ascending, heavily scaled ; clypeus scale 

 tufted, rounded, projected forward below ; antenna? simple, flattened, 

 finely and evenly pubescent below ; thorax and abdomen untufted ; 

 fore tibipe short, armed at end with prominent claw ; hind tibiae with 

 one pair of spurs; fore wings two accessory cells, 12 veins, 6 short 

 i^temmed with 7; hind wings vein 1 wanting, its place being taken 

 by a basal lobe beneath, 3 and 4 separate, 6 and 7 stemmed, 8 start- 

 ing wide from cell, joining it one-third out, then coincident with it 

 nearly to end. 



Differs fi-om Eucedia Hiib. in having one pair of spurs on hind 

 tibiae. 



Species. — S. trUeriata Pack. 

 S. virglnata Graef. 



9. CARSIA Hiib. 

 Verz. 336, 1818. 



Type palndata Thun. 



Larixsa Curt., Brit. Ent. vii, 324, 1830, type paludatn Thun. 

 - Celma Steph., Ills, iii, 242, 1831, type paludata Thun. 



Palpi moderate, porrect ; front somewhat prominent ; antennae 

 filiform, ciliate in both sexes ; thorax and abdomen untufted ; fore 

 tibiae unarmed; hind tibife with all spurs; fore wings 12 veins, two 

 accessory cells ; hind wings with cell to beyond middle ; in Z with 

 a transparent fovea near base along inner margin, bordered with a 

 membraneous ridge forming a pocket, 6 and 7 stemmed. 

 Species. — C. palndata Thun. 



TRANS. AM. ENT. SOC. XXIII. JULY, 1896. 



