488 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 
rare on low white birch shrubs. I have found the egg and young larva 
on the willow at Brunswick in July, but have not reared an individual 
through all the stages from the first.* 
The following notes are by Mrs. Anna K. Dinimock in Psyche, iv, p. 
282: 
Smtrinthus cxcwcatus Abb. and Smith (Nat. Hist. Lepid. Ins. <ia.. 1797, v. 1, p. 49, 
pi. 25), Harris (Anier. Journ. Sci. and Arts, July 1639, [s. I], v. 30, p. 290) gives a 
brief description of larva and imago of this species, which ho states to feed upon 
apple and Rosa Carolina ; Morris (Syn. Lepid. N. A., 1862, p. 209) gives Harris's de- 
scription of the larva, with slight addition, and adds a description of the youug larva 
and of what ho supposed to be the egg — really, however, the egg of Attacus polyphc- 
mus. Harris (Treatise on Ins. Iujur. Veg., 1862, p. 327-328) describes and figures the 
imago. Lintner (Proc. Entom. Soc. Phil., 1864, v. 3, p. 666) describes the larva 
without knowing the species, and later (Entom. Contrib., No. 2, 1873, p. 23) he gives 
its name, and states that the larva described by him (Proc. Entom. Soc. Phil., 1864, 
v. 3, p. 665) as S. excacatus was in reality S. geminatus. Sanborn (Can. Entom., Jan. 
slightly reddish ; mandibles black. Body of a uniform pale pea-green color, a little 
more vivid than the under side of the birch leaves. The surface of the skin rough with 
small conical papillae. Seven lateral stripes pale yellow, moderately broad, begin- 
ning in front of each abdominal spiracle on front edge of the segment and extending 
upon the back of the succeeding segment. The last yellowish stripe extends to 
the base of the horn or eighth segment, which is moderately stout and long. Neither 
the caudal horn nor yellowish lateral stripes are staiued with lilac. The spiracles 
are black, with a central white line. The forefeet are rose-red. The abdominal 
legs concolorous with the body, which is of the same pale yellowish green above and 
below ; the hooks are dark. Length 50 mm . 
* Mr. William Beutenmiiller has published in Entomologica Americana, i, p. 196, the 
following list of food-plants of S. excacatus : 
Corylus americana, Walt (Wild Hazel- 
Legumino8ce. 
Wi9tariasiuen8is,Dec.(ChineseWistaria.) 
Rosacea. 
Prunus virginiana, L. (Choke-Cherry.) 
serotina, Ehr. (Wild Black 
Cherry.) 
Spiraea opulifolia, L. (Nine Bark.) 
Rubus odoratus, L. (Purple-Flowering 
Raspberry.) 
Pyrus malus, Tourn. (Apple.) 
rrticacecp. 
Ulmus fulva, Michx. (Slippery or Red 
Elm.) 
americana, L. (American or Wild 
Elm.) 
alata, Michx. (Whahoo or Winged 
Elm.) 
suberosa, Mouch. 
Cupuliftra . 
Quercus palustris, Du Roi. (Swamp or Pin 
Oak.) 
coccinea, Wang. (Scarlet Oak.) 
Nut.) 
Ostrya virgiuica, Wild. (American Hop 
Hornbeam.) 
Carpinus americana, Michx. (Hornbeam.) 
BetulacecE. 
Betula alba, L. (White Birch.) 
Betulavar. populifolia, Spach. 
Salicacea'. 
Salix cordata, Muhl. (Heart-leaved Wil- 
low.) 
lucida, Muhl. (Shining Willow.) 
fragilis, L. (Brittle Willow.) 
alba, L. (White Willow.) 
babylonica, Tourn. (Weeping 
Willow.) 
Populus tremuloides, Michx. (American 
Aspen.) 
grandidentata, Michx. (Large- 
toothed Aspen.) 
angulata, Ait. (Angled Cotton- 
wood.) 
monilifera, Ait. (Cottonwood, 
Necklace Poplar.] 
