250 LEPIDOPTERA OF NORTH AMERICA. 



the hind angle. They expand about one inch and one-eighth. 

 The female is gray, and wingless, or with only two minute scales 

 on each side in the place of wings, and exactly resembles in shape 

 the female of the foregoing species. The larva is yellow on the 

 back, on which are four short square brush-like yellow tufts ; the 

 sides are dusky and spotted with red ; there are two long black 

 pencils or plumes on the first ring, one on each side of the fifth 

 ring, and one on top of the eleventh ring ; the head is black ; and 

 the retractile warts on top of the ninth and tenth rings are red. 

 United States and Europe. 



HARRIS. 



3, O. leucographa Walk. C. B. M. 



Male. Obscurely fuscous; primaries paler, with a sub-basal 

 streak, a costal ante-apical spot, two bands, the first wide before 

 the middle, the second arcuate dark fuscous, and a white posterior 

 spot. Female. Apterous. 



Georgia. 



WALKER. 



4. O. vetusta Boisd. Am. Soc. Ent. 2me ser. X, 322. 



Primaries fuscous, a paler band at the base and a white anal 

 spot ; secondaries fusco-rufescent. 



California. 



BOISD. 



APANTESIS WALKER. 



Female. Body fusiform, clothed with close smooth hairs. Head 

 small. Head and thorax clothed with short hairs, lying close and 

 smooth. Proboscis short. Palpi hairy, porrect ; third joint coni- 

 cal, small. Antennae minutely pectinated. Abdomen with very 

 short hairs, extending to one-third of its length beyond the hind 

 wings. Fore wings narrow, subfusiform, slightly convex along 

 the costa ; outer border slightly oblique and convex ; hind angle 

 very obtuse and much rounded ; first, second and third inferior 

 veins very near together at the base ; fourth twice further from the 

 third than the third from the first. Hind wings rather broader 

 than the fore wings and hardly two-thirds of the length. Legs 

 moderately stout ; hind tibiae with four spurs of middling length. 



