PAPILIO. 



Devoted Exclusively to Lepidoptera. 



Kdited by _ I Vol 4 



'rL^^trj Philadelphia, April, 1884. | ^o. 4 



DESCRIPTION OF THE PREPARATORY STAGES OF 



MELITiEA CHALCEDON, BOIS., WITH SOME 



NOTES ON LARViE OF M. PHAETON. 



By W. H. EIdwards. 



Egg. — Sub-conical, the base rounded and flattened, the top trun- 

 cated, depressed, and finely reticulated in irregular five-sided figures 

 around a central rosette of five; surface smooth; the upper third 

 marked by about twenty low, vertical, sharp ridges, which increase 

 gradually in elevation and end at the rim of summit ; color when laid 

 lemon-yellow, later changing to crimson, and before hatching, to black. 

 Duration of this stage about fourteen days. 



Young Larva. — Length .i inch; cylindrical, even from 2 to 11, 

 the segments slightly rounded; color dark green-yellow; on each seg- 

 ment are several black tubercles, each of which gives a long tapering 

 black hair; 2 has a sub-oval black chitinous patch on dorsum, and on 

 either side of the medio-dorsal line are three fine tubercles, the six ar- 

 ranged so that four come to the front, and two behind, each of the 

 latter midway between the front pair; besides these, there are three 

 tubercles on either side this segment, two in vertical line in front, and 

 one higher up and behind ; each segment from 3 to 12, inclusive, has 

 six dorsal tubercles; on 3 and 4 these are nearly in cross row, the two 

 middle ones standing a little in front; on the succeeding segments there 

 are four in front, in line, and one behind and between each pair; these 

 tubercles form six longitudinal rows; along base of body is a row of finer 

 tubercles, on some segments two; 13 has the four in front, but close 

 together, and the other two are outside and below; at the extreme 

 end is a chitinous patch, from which two hairs; the hairs on 2 to 7, 

 and the lower of the six rows to 9 turn forward, those on dorsum of 

 6, 7 and 8 stand upright, on the other segments they turn back; 

 the basal row has one hair each on 2, 3 and 4; on 5 to 12, two each, 



