ARGYNNIS VII. 
— 
ARGYNNIS DIANA. 
Argynnis Diana , Cramer, II., pi. 98. Edwards But. X. A., VoL I. plate 20. 
DESCRIPTION OF PREPARATORY STAGES. 
I Egg. —Height, .0-86 inch, breadth at base, .09, at summit, .034; conoidal, 
truncated, depressed at summit, marked vertically by about eighteen prominent, 
slightly wavy, ribs, eight of which extend from base to summit, and form around 
the latter a serrated rim or crown ; the remainder lie between these and end 
# 
irregularly at one half to three quarters distance from base, sometimes squarely 
at one of the transverse strise, but often curve towards and unite with the long; 
ribs; between each pair of ribs are equi-distant transverse strise, about twelve 
in all, each one depressed in the middle and not often in line with the corres¬ 
ponding strias of the adjoining sections; the spaces between the ribs and striae 
excavated roundly. (Fig. a.) Duration of this stage fifteen days. 
Young Larya. — Length, .08 inch; cylindrical, thickest at fifth and sixth 
segments, tapering slightly towards either extremity ; color dull green, translu¬ 
cent ; each segment from third to twelfth marked by a transverse row of eight 
elongated, mostly ob-ovate, tubercular, dark spots, the second on either side the 
dorsal line lying back of the rest; on the thirteenth a straight row of four spots, 
and behind this another of two spots; the second segment is narrow and is occu¬ 
pied dorsally by a blackish, oblong patch, on the front of which are four small, 
rounded tubercles, and immediately behind each of the two outer ones a similar 
tubercle; in addition to these, on either side of this segment are two spots like 
those upon the other segments; from each of the tubercular spots throughout 
spring one or two long black hairs, curved forward ; head rounded in front and 
at the vertices, depressed in middle at top; color blackish brown, sparsely pilose. 
(Fig. b.) At this stage this larva cannot be distinguished from that of Cybele or 
Aphrodite. The first moult occurred in eighteen days after the larva awaked 
from hybernation. 
