AMERICAN LEPIDOPTERA. 355 



suddenly shortening to sini})le iipex, tlie antennie generally plumose, 

 of 9 filiform or serrate ; thorax scaled, sometimes tufted posteriorly, 

 somewhat hairy below ; abdomen scaled ; hind til)i{B often swollen, 

 with all spurs, without hair pencil in 1 ; fore wings 12 or 11 veins, 

 varying in the same sjtecies. even, with fovea below in % ; hind 

 wings 5 undevelopetl, G and 7 separate, 8 separate from cell, the 

 wings rounded, even, or slightly wavy. 



Species : — 

 S. muriGolor Hulst, n. sp. S. jutlmoiKiriinn Grt. 



S. correllatani Hulst, n. sp. S. hainariiim Guen. 



S. ivrijjhtiarlani Hulst. *S'. umbrosarium Guen. 



S. fuliginariuDi Hulst. S. albescens Hulst, n. sp. 



S. llliiriC4»lor n. sp. -Expands 34 3(i niin.^Palpi, front and antenna; dark 

 sordid fuscous; summit, thorax and abdomen lijilit gray; all wings very smooth, 

 even fuscous, or fuscous gray, without lines or spots; fore wings with costa and 

 apical space, hind wings -with outer sjjace and inner margin slightly darker; 

 margins with fine, intervenular, bla(^k dots; hind wings somewhat rounded out 

 at vein 4 ; beneath almost exai^tly as above. 



Hazleton, Pa., from Dr. Dietz. Very nuirli in color like DIks- 

 tictls incepfata Walk, (argillacearia Pack-.), differing by the less 

 rounded fore wings, the obtusely angled hind wings and the plumo-se 

 autennpe. 



S. correllat iini n. sp. — Expands 28 30 mm. Palpi and front fuscous to dark 

 fuscous; thorax fuscous gray to whitish fuscous. Abdomen whitish or grayish 

 fuscous; fore wings white, or light bluish gray, somewhat scattered over with 

 darker scales; basal line black, geminate, often indistinct, especially on cell; 

 middle line indistinct, or a faint fuscous shading: outer line black, curved, gemi- 

 nate, more widely separate subcostally, with a reddish included shading on third 

 quarter from costa. Wings slightly falcate: marginal line broken, black, heavier 

 subapically ; hind wings whitish or light gray, more fuscous along inner margin ; 

 all wings with distinct black discal spots; beneath light gray, heavily powdered 

 with fuscous, discal spots distinct, diffuse, black. 



Colorado, California, Oregon ; the Oregon specimen taken August 

 24th. 



S. albo«*<*Oil!>i n. sp. — Expands 42 mm. Palpi blackish ; front blackish, with 

 a line of white along summit: rough, somewhat overhanging scales lietwcen an- 

 tenni©, whitish on edge, blackish in middle; collar light gray, blackish behind; 

 thorax whitish gray, with low posterior tufts. Abdomen whitish gray, with 

 black speckles above, fuscous stained towards end. Wings even, clear whitish 

 gray, with a few black scales ; fore wings with black basal line, bent, rounded 

 out most strongly on costal half; middle line at discal point, black and distinct 

 at costa, showing in black spots across wing parallel with basal line; outer line 

 black, running very much as in larvaria ; a row of marginal black spots; hind 



TRANS. AM. KNT. SOC. XXIII. SEPTEMBER. 1896 



I 



