AMERICAN ENTOMOLOGY. 113 



PHILANTHUS POLITUS. — Specific diameter. Black, polished : 

 first segment of the tergum with two whitish spots, the other seg- 

 ments with a spot each side, connected by a whitish band. 



P. politus nobis, Long's Second Expedition, p. 343. 



Desc. Hypostoma, mandibles at base and anterior line of the 

 orbits as high as the emargination, whitish ; antennae beyond the 

 third joint on the inferior side rufous brown, a whitish spot on the 

 basal joint : thorax with small, irregular punctures ; collar with 

 two transverse spots ; wing-scale, and transverse line on the scu- 

 tel, whitish : wings a little dusky towards the tip : pleura with a 

 double whitish spot beneath the superior wings : thighs black ; 

 knees and tibiae, excepting a black line on the inner side, whitish ; 

 tarsi dusky : tergum polished ; first segment with a transverse 

 ovate spot each side ; remaining segments each with a transverse 

 quadrate spot each side, touching the posterior margin, and con- 

 nected along this margin by a slender, undulated band. 



Obs. An inhabitant of Pennsylvania. It may be readily known 

 from the preceding, by its polished appearance. 



The lower right figure of the plate. 



HIPPAPtCHIA. Plate L. 



For Generic Characters, see Hipparehia andromaclia. [ante 

 p. 80.] 



HiPPARCHlA semidea. — Specific character. Wings brown ; 

 inferior pair marbled beneath. 



Desc. Body black, immaculate : antennae fuscous, beneath 

 bright rufous towards the tip, the club very gradually formed : 

 superior wings brown, the costal margin with alternate transverse 

 black and yellow lines, exterior margin with alternate black and 

 white spots ; beneath dull ochreous, with obsolete, transverse, 

 abbreviated, blackish lines ; costal and broad tip margin alter- 

 nated with vivid black and white lines ; inferior wings dark 

 brown; towards the posterior margin obscure ochreous, with ob- 

 solete, abbreviated, blackish, transverse lines ; posterior margin 

 with a slender black line and dirty white edging; beneath mar- 

 bled with black and white, the black prevailing across the middle 

 and base of the wing. 



Obs. Many of the insects belonging to this genus are decorated 

 with beautiful colors, and with eye-like spots upon the wings ; 



