OF THE PAEM ANB GAEDEN. 229 



bear such a close resemblance to each other, and both 

 feed upon the G-rape-vine. The larva of the Beautiful 

 Wood Nymph is, in fact, so very similar to that of the 

 Eiglit-spotted Forester, that it is entirely unnecessary to 

 figure it. It differs more especially from that species by 

 invariably lacking the white patches along the sides; the 

 hairs arising from the black spots are less conspicuous, 

 while the hump on the eleventh segment is somewhat 

 more prominent. The light parts of the body have 

 really a slight bluish tint, and in specimens which we 

 have found, we have only noticed six transverse black 

 stripes to each segment. This larva, when at rest, de- 

 presses the head and raises the third and fourth segments. 

 Sphinx-fashion. It is found on the vines in Missouri 

 as early as May and as late as September, and it devours 

 all portions of the leaf, even to the midrib. It descends 

 to the ground, and, without making any cocoon, trans- 

 forms to a chrysalis, which is dark colored, rough, with 

 the tip of the abdomen obtusely conical, ending in 

 four tubercles, the pair above, long and truncate, those 

 below broad and short. Some of them give out the moth 

 the same summer, but most of them pass the winter and 

 do not issue as moths until the following spring. 



THE PEARL WOOD NYMPH. 

 (Eudryas unio, Hiibner). 



This little moth is also closely allied to, and much re- 

 sembling the preceding species. It is smaller, and differs 

 from the Beautiful Wood Nymph in having the outer 

 border of the front wings paler and of a tawny color, 

 with the inner edge wavy instead of straight; and in that 

 of the hind wings being less distinct, more double, and 

 extending to the outer angle. 



The larva is said by Dr. Pitch to so much resemble that 

 of the preceding species that "we as yet know not whether 



