104 THE COMMONER BUTTERFLIES. 



of the genus, thereby mimicking to an extraordinary degree 

 the general appearance of Anosia jjlexipjms. 



TRIBE EMPERORS. 

 17. Genus Anaea. 



ANilA ANDRIA— THE GOAT-WEED BUTTERFLY. 



(Papliia glycerium, Papliia troglodyta.) 



Butterfly. — Fore wings falcate, hind wings tailed. Upper sur- 

 face either dark orange, margined feebly with brown (male) or 

 paler orange, heavily margined with brown, and with a very 

 irregular, broad, paler band edged with dark brown crossing 

 both wings (female). Under surface nearly uniform dry-le<if 

 brown. Expanse 2^-3 inches. 



Caterpillar. —Head gray -green, with minute tubercles which 

 are slightly larger on the summits. Body naked, gray-green, 

 studded with numerous and well-distributed raised paler points. 

 Length 1^ inches. 



Chrysalis.— Stout and plump, light green, granulated with 

 white, sometimes speckled with brown, transversely ridged above 

 the wings in the middle of the abdomen. Length nearly f inch. 



The eggs, which are nearly spherical, encircled near 

 snmmit with raised points, and sky-bhie when first laid, 

 afterwards turning opaque yellow, are nsnally laid singly 

 on the nnder side of the leaf of the food-plant, though 

 often two will be found on a single leaf; they hatch in 

 four to six days. The caterj^illar feeds on species of 

 Croton, goat-weed; in its earlier life it devonrs the tip of 

 the leaf except the midrib, on which it rests as a perch 

 after the manner cf Basilarchia, strengthening it by 

 pellets of the leaf attached by silk ; after its second moult 

 it lines the upper surface of a leaf with silk, bringing the 

 npper edges together without fastenings, and thus makes 

 a nest like that of Eu23lioeades, wdthin which it lies con- 

 cealed, eating the base of the leaf; when this becomes too 

 small it makes a similar nest from another leaf^ but goes 



