838 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 
to the prothoraeie segment, and slightly tinned with ferruginous. In this hand, on 
t in* side »>i* each segment, ii -i pale-whitish, flattened wart, directly in front of and 
adjoining the spiraele: along the narrow, lateral, fleshy ridge on each segment is a 
long, narrow, pale-yellowish wart. Beneath dull, livid greenish, with (on each seg- 
ii). nt a transverse row of four hriglit-yellowish warts, concolorous with those above ; 
the two inner ones are minute, the outer ones much larger. Thoracic legs black- 
brown; the four pairs of abdominal median legs an- pale, almost whitisli : all the 
hairs are tine and light-brown in color, and one-half as long as the body is broad. 
L.-ngth 19 mm . 
Pupa. — Body very thick, the thorax especially unusually swollen; the body, soon 
after changing, pale horn-colored, striped with brown; antenna) and legs dark horn- 
color or dull tan-brown: wings pale, with the veins dark: the thorax pale horn, 
spotted with dark tan-brown, with three irregular, dark, dorsal stripes; meso-scutel- 
luin and metanotuni dark ; abdominal segments above, with two rows of stout spines ; 
a lateral row of dark spots, and a median spot on the two basal segments; similar 
spots on the succeeding segments lengthened and connecting the lateral spots. Be- 
neath are two irregular rows of diffuse spots ; the hinder edge of the segments dark- 
ened; the terminal segment uniform dark, shining, tan-brown, ending in a long, stout 
point, on each side of which are two tightly-curled spiues, and two stouter but less 
curled larger ones at the end, arisiug from a common base. Length 12 mm . 
Moth. — A large species, with a stout body and large broad, oblong fore wings; 
the costa not excavated towards the apex, but full and regularly though slightly- 
curved, the apex being rectangular : head and body umber-brown. Palpi very stout : 
terminal joint short. Fore wings umber-brown, the brown sometimes renlaced by rust- 
red ; ground-color bluish-slate : on the inner fourth of the costal edge are four unequal, 
triangular, brown spots, the second and fourth connecting with an elongated trans- 
verse brown patch in the middle of the wing. From a point at or just within the 
middle of the costa a very oblique, distinct, broad, brown band crosses the wing in a 
zigzag course, ending at or near the outer third of the internal edge of the wing. This 
broad band extends out towards or connects with a preapical brown patch on the 
costa ; it also sends an angle inwards behind the mediau vein, and again another angle 
outward opposite the inwardly-directed angle. There are often two distinct, costal, 
whitish dots (sometimes wanting) just before the apex, while the apex itself is brown. 
There is also a large brown patch in the middle of the wings near the outer edge. 
There are numerous fine, short, transverse, brown lines dividing the wing into squares 
or checks, bordered with brown. The bands and short lines are more or less confluent 
or separate, varying much in this respect. Some females differ in the umber-brown, 
being bright rust-red, and the clay-blue pale ferruginous brown, while the broad, 
median, zigzag band is umber-brown ou the edges and bright rust-red in the middle, 
and the wing is covered with an irregular net- work made by the short transverse and 
longitudinal dark-brown lines inclosing rust-red or smoky-red patches. 
Legs, body, and hind wings glistening umber-brown : tarsi ringed with pale brown. 
The abdomen of the female is very stout, that of the male eudiug in a long, distinct, 
hairy tuft. Described from perfectly fresh specimens, five males, eight females. 
Length of body, 9 to 10 mm ; of fore wing, 10 to 12 mm ; expanse of wings, 19 to 2*2 mm . 
10. The spruce xematus. 
Xe m at us i u teger S a y . 
Order Hymen* >f-teka : family Tenthredixid.e. 
(Plate XXVII, figs. 6, 6a, 6&, 6c.) 
Although this insect is not, so far as known, especially destructive to 
evergreen trees, yet it is common over the Northern States and may at 
times prove obnoxious. It occurs on the spruce in Maine in the latter 
