. The American entomologist. Entomology. The larva (Fig. 54 a), may be summarily de- scribed as a soft worm, of a greenish-blue color, with four longitudinal yellow stripes, and cov- ered with black When newly hatched it •SeeProc, Bost. Soc. Nat Hist., YIK, Isci, p, ISI. t We annex .a full description of this hir\;ifir tli'- of our scientific friends: Averaj^e lL-ni,^ih wIh-ii Jull i^imwu inches. Cylindrical. Middle . common ground-color green verging mitn liUie: Clear pale-blueand at others deep indigo or purplish-ljlue. Each segment wit
. The American entomologist. Entomology. The larva (Fig. 54 a), may be summarily de- scribed as a soft worm, of a greenish-blue color, with four longitudinal yellow stripes, and cov- ered with black When newly hatched it •SeeProc, Bost. Soc. Nat Hist., YIK, Isci, p, ISI. t We annex .a full description of this hir\;ifir tli'- of our scientific friends: Averaj^e lL-ni,^ih wIh-ii Jull i^imwu inches. Cylindrical. Middle . common ground-color green verging mitn liUie: Clear pale-blueand at others deep indigo or purplish-ljlue. Each segment with six transverse wrinkles, of which the first and fourth are somewhat wider than the others. Four is of a uniform orange color with a black head, but it becomes dull brown before the first moult, though the longitudinal stripes and black spots are only visible after said moult has taken place. The chrysalis (Fig. 54 b), averages inch in length, and is as variable in depth of ground- color, as the larva. The general color is light blui'sh-gray, more or less iiiten,sely speckled with black, with the ridges and prominences edged with buff or with flesh-color, and having larger black dots. [Fig .-„',.]. (. olors—Black and «hite The female butterfly (Fig. 53), as was stated in our last number, (p. 60) differs remarkably Irom the male which we represent at Figure 55. It will be seen, upon comparing these figures that the ? is altogether darker than the ,^. This sexual diflfereiice in appearance is purely I'olorational, however, and there should not be the diflerence in the form of the wings which the two tigures would indicate, for the hind wings in our c? cut, are altogether too short and rounded. This insect may be found in all its difierent stages through the months of July, August and September. It hybernates in the chrysalis state. We do not know that it feeds on any- thing but Cabbage, but we once found a ^ chrysalis fastened to a stalk of the common net- tle, (Sola
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectentomology, bookyear1
