NATURAL SCIENCES OF PHILADELPHIA. 541 



the tip. The discal vein is rather faint and gives rise to two disco-central 

 nervules, the upper one rather on the costal side of the wing. Median vein 

 4-branched, the posterior nervule arising a little behind the first marginal 

 branch. The fold is thickened and the submedian shortly forked at the base. 

 Hind wings ovate ; as broad as the fore wing and in length equal to that of 

 the body. Withoirt costal vein. Subcostal is furcate, the lower branch giving 

 rise at an obtuse angle to a thickened discal vein, which is angulated above 

 the medio-superior nervule, where it receives the discal fold, and above this is 

 given off a single disco-central nervule. Median vein 4-branched, with branches 

 equidistant, except the two superior ones. 



Head moderate, free, vertex rather elongated, smooth ; ocelli large. Face 

 moderately broad, rounded, slightly protuberant. Eyes rather small, scarcely 

 prominent. Antenna? with bases almost united, rather thick, but tapering at 

 the tips, pectinated. Palpi extremely short. Tongue about one half as long 

 as the thorax beneath. 



Body slender, cylindrical. Patagia minute, rolled. Abdomen not tufted at 

 the tip or on the sides, about one half the length of the body beneath. Legs 

 slender ; fore tibia? with a short concealed spur on its middle ; hind tibiae with 

 two extremely minute apical spurs. 



M. perlucidula. Blackish brown. Wings slightly transparent. Fore 

 wings with the basal half luteous above the/old. Hind wings luteous along the 

 costa from the base to the middle. 



111., Mr. Kennicott. Md., Dr. Morris. 



Ckocota, Hiibner. 



Fore wings rather broad, trigonate. The subcostal vein, almost above pos- 

 terior end of the disk, gives rise to a single marginal nervule, and the apical 

 branch is trifid at the tip ; and sometimes with a second short marginal branch 

 from about the middle of the apical nervule. The subcosto inferior and the 

 discal arise on a short common stalk, the latter vein angulated. The median 

 is 4-branched, with the posterior remote from the others. Hind wings rounded, 

 broader than the fore wings, with the costal and subcostal veins from a com- 

 mon stalk, the former simple and the latter bifid, with an angulated discal 

 vein from the point of bifurcation. Median with three branches, the posterior 

 remote. 



Head moderate, free, smooth ; ocelli small. Face moderate, flat, smooth. 

 Eyes rather large, prominent. Antennae not more than half as long as the 

 body, rather stout, setaceous and slightly setose. Palpi rather slender, por- 

 rected, exceeding the clypeus by at least one half their length, and pubescent ; 

 the terminal joint pointed and slender, about one half as long as the middle 

 joint. Tongue slender, about one half as long as the anterior coxa?, or rudi- 

 mentary. 



Body smooth, rather slender ; length less than that of the hind wings. 

 Patagia scale-like. Abdomen smooth, beneath one half as long as the body. 

 Legs rather slender ; fore tibia? with a short, concealed, middle spur ; hind 

 tibiae with four short spurs. 



Somewhat allied to the Arctiida?. 



Table of Species. 

 Wings with a discal dot. 



Abdomen ferruginous, with dorsal and black dots, 



Abdomen rose color, 



Abdomen reddish brown or fulvous, 

 Wings without discal dot. 



Abdomen red, with a black stripe, 



Abdomen testaceous ; wings subhyaline, 



C. rubicundaria, Hiibner, Samml. Ex. Sch. iii 

 I860.] 



