INSECTS INJURING OAK-LEAVES. 139 



the 10th and 11th segiueuts there is a smaller red tubercle notched at the top. The 

 whole surface of the body is somewhat hairy, but along each side the hairs are lono- 

 and form quite dense clusters. 



Pupa. — From f to 1 inch long, varying in color from chocolate to reddish brown. 



Moths. — The male is very much smaller thau the female and with broadly pectinated 

 antennae. It is of a yellowish-brown color, with two dark brown lines crossino- the 

 fore- wings, one at the basal third, the other on the outer third, somewhat curved, 

 and with teeth pointing outwards on the veins. The outer end of all the wings is 

 dark brown. A curved dark brown spot (reniform) rests a little above the middle of 

 the wing, and a small round spot of the same co'or {orbicular) is situated between 

 this and the base of the wiug, just outsjde of the inner cross line. A similar spot 

 rests near the middle of the base of the wing. The fringes on the fore-wings are 

 dull yellowish, and broken by eight brown spots. The antenme are strongly bipec- 

 tinated, or feather-like. The fore-wings expand about an inch and a half. 



The female is pale yellowish white, with dark brown cross-lines and spots similar 

 to those of the males. The cross-lines in both sexes are much darker and more prom- 

 inent on the forward edge of the wings (costa) than elsewhere. In some specimens 

 there is a faint stripe of brown across the middle of the wing (median shade), and a 

 toothed line across the wing near the outer edge {subterminal line). The fringes of 

 the fore-wings have eight dark spots between the ends of the veins, as in the males, 

 and similar but fainter spots often occur in the fringes of the hind wings. The body 

 is much stouter than in the males, and the antennae are not so heavily feathered. 

 The expanse of the wings is from If to 2f inches. 



192. Lagoa crispata Pack. 



Although this caterpillar has beeu raised from the raspberry by the 

 late Mr. C. A. Shurtleff, near Boston, we have found it common on the 

 scrub oak in Providence as late as October 1, some specimens before the 

 last molt occurring September 20 to 27. This curious woolly caterpillar 

 will attract attention from its peculiar appearance. 



As we have elsewhere stated, the cocoou is rather long, cylindrical ; 

 its texture is dense, being formed of the hairs of the larva, closely 

 woven with silk. When the pupa, which is very thin, is about to 

 transform it escapes from the cocoon, as the cast skin is found with the 

 tip of the abdomen remaining in the cocoou. In this respect the moth 

 is a connecting link between the groups represented by Orgyia and 

 Limacodes. 



Full-grown larva. — Body short, broad, and flat, head deep honey-yellow ; jaws 

 darker ; the head very retractile within the large prothoracic segment, which is large 

 and fleshy, produced down around the face like a hood, so as to entirely envelop the 

 head, so that it is uot seen while eating, with a large V-shaped incision in front. The 

 body densely covered with hairs, so that the caterpillar appears about one-half as 

 broad as long, rounded at each end, the hairs very long and curly; those on the 

 thoracic segments mouse-gray; all the rest behind a uniform pale fawn-brown, some- 

 times above a dark, rich orange-ocherous; a slight dorsal broad crest, a subdorsal 

 broad ridge, aud the hairs spread out on the side, but everywhere so long and dense 

 as to entirely conceal the head aud body. The sides are mouse-gray as above, but 

 the lateral hairs are not to be seen from above. The body is pale whitis'i yellow, the 

 thoracic and abdominal legs also pale dull yellowish white. The first pair of thoracic 

 legs are smaller and nearer together thau the others, while there is a pair of rudi- 

 mentary abdominal legs on the second aud seventh abdominal segments. Length, 

 20-32'"™; breadth, 10-15"""; height, 7""". 



