REPORT OF THE ENTOMOLOGIST. 149 



very conspicuous and showy, large, whitish-yellow, piliferous warts, forming flat- 

 tened minute tubercles, with a dark center from which the hair arises. On the 

 top of the second and third thoracic segments is a transverse row of four such warts 

 on each segment ; on the upper side of the abdominal segments are four warts arranged 

 in a short trapezoid; they are far apart transversely, but unusually near together 

 antero-posterior to the body ; on the penultimate segment is a median, broad, light- 

 yellowish spot on the hinder edge of the segment; a large, round, convex area, form- 

 ing the supra-anal plate, from which arise about six fine, long, pale-brown hairs. 

 Anal legs spreading, with two or three piliferous callosities ; the terminal segment and 

 anal legs concolorous, with an irregular, broad, pale-yellowish, lateral band reaching 

 to the prothoracic segment, and slightly tinged with ferruginous. In this band, on 

 the side of each segment, is a pale-whitish, flattened wart, directly in front of and 

 adjoining the spiracle; along the narrow, lateral, fleshy ridge on each segment is a 

 long, narrow, pale-yellowish wart. Beneath dull, livid greenish, with (on each seg- 

 ment) a transverse row of four bright-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 are pale, almost whitish ; all the 

 hairs are fine and light-brown in color, and one-half as long as the body is broad. 

 Length 19 mm . 



Pupa. Body very thick, the thorax especially unusually swollen ; the body, soon 

 after changing, pale horn-colored, striped with brown ; antennae and legs dark horn- 

 <zolor 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- 

 lum and metauotum 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 diflfuso 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 spines, and two stouter but loss 

 curled larger ones at the end, arising from a common ba'se. Length 12 mm . 



The 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 replaced 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- 

 Averse 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 pre-apical brown patch on the 

 >costa; it also sends an angle inwards behind the median 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 on the edges and bright rust-red in the middle, 

 .and the wing is covered with an irregular network made by the short transverse and 

 -longitudinal dark-brown lines enclosing 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 ending in a long, distinct, 

 Ihai ry tuft. Described from perfectly fresh specimens, 5 $ ; 8 9 Length of body 9-10 mm j 

 of fore wing 10-12 mm ; expanse of wings 19-22 mm . 



THE SPBUCB NEMATUS. 



(Nematus integer Say.) 



Order HYMENOPTERA; family TENTHREDINID^. 

 [Plate XIII, Figs. 6, 6a, 65, 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 

 part of summer, and feeds separately, not being gregarious as in most 



