184 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION 
a basal, diffuse, l>r<Ki<l brown Line, :in<l an outer much eurved brown bair-liue. Ad 
outer row of dark patches forming a taint broken line. An apical, oblique, whitish 
patch. Bind edge of fore wings with darker spots and patches than elsewhere. Ex- 
panse of wings, 1.30 t«> 1.65 inches. This fine moth occurs all over the Uuited States 
and on the Pacific coast from California to Oregon. 
•J.")7. Bndropia peetinaria Guene'e. 
Living on the oak and other trees, a large gray measuring worm, transforming to a 
lar^e Emlrojt'ui, with three sharp teeth in the hind wiugs. 
The transformations of this moth have been observed by Abbot in 
Georgia, who found it living on the oak and poplar in April. It changes 
to a chrysalis at the beginning of May, and the moth appears at the 
end o^ the same month. 
Larva. — Pale green, with the sutures and sides reddish, a double angle bordered 
with reddish on the second segment, another more salient on the sixth, and finally 
another on the tenth ; the fifth has on each side a small pointed tubercle. Head and 
feet concolorous. 
Moth. — The hind wings with a large tail and toothed; the fore wings angular, 
sickle-shaped. Body and wings pale whitish-ash. Wings thickly covered with line 
speckles. Fore wings with three lines, the usual inner and outer line, and a third 
wavy submarginal hair-line. The two inner lines distinct, of even width, a little 
oblique, not waved; the innermost line situated exactly on the inner third, the outer 
line on the outer third of the wing. Front edge of the fore wings stained with red- 
dish on the end of the outer line. Submarginal hair-line wavy, sinuate, reddish, 
situated half-way between the outer line and the edge of the wing and disappearing 
below the second median venule, scalloped between each venule, much more distinct 
below than above. On the hind wings a single brown line, and traces of a submar- 
ginal wavy line. Beneath, paler than above, with the lines reproduced beneath, and 
dull colored; the third submarginal Hue on both wings partly obsolete, but clearer 
than above; friuge reddish. Expanse of wings, 1.50 inches. Ranges from Maiue to 
Missouri and Kansas. 
The parent of this caterpillar, which is found in the United States, 
north and south, and west as far as Kausas, may be known by the 
three well-marked teeth on the apical half of the hind wings, by the 
clear border of the wings, and by the dark clear lines ou the under side. 
The caterpillar lives in Georgia on the oak and other trees, according 
to notes left after his death by Abbot, and is of a pale yellowish gray, 
with a dorsal lozenge like mark. The fourth segmeut is darker, and on 
the back of the eighth, ninth, and tenth are also two obscure marks 
bifid anteriorly on the first, and carrying a blackish angle on each ex- 
tremity of the second. The head and feet are concolorous. It is found 
in Georgia in May and June, and the moth is disclosed towards the end 
of this last month. A second generation enters the chrysalis state 
towards the middle of July to appear as moths in the beginning of 
August. In the Northern States the species is undoubtedly only 
single- brooded. 
Besides these geometric caterpillars, that of Metrocampa perlaria 
Guenee should be looked for on the oak, as its closely allied Europeau 
cougener (.1/. margaritata) feeds on the elm, hornbeam, birch, aud oak. 
