HIE STATE ENTOMOLOGIST. 117 



riorly and terminally, and fulvous along costa ; the whole with a nacreous lustre and more or less 

 irrorate with brown, and often with a flesh-colored tint near apex ; fringes dark. Hind wings white 

 with a faint fulvous tint; semi-transparent and slightly irridescent. with extremities of nerves and 

 borders, especially above, brown ; fringes dusky, especially at apex, and with a paler inner line ; 

 under surface similar. Thorax, abdomen and legs of same general color as front wings, being 

 paler below; the longer lateral and anal abdominal hairs more fulvous. Sexes with difficulty dis- 

 tinguished, the size and shape of the abdomen not even being a safe criterion. Maximum expanse 

 1.40; minimum expanse 1.05 inches. Described from 18 specimens, bred Sept. 20th — Oct. 10th, 

 from corn-fed larva;. 



Variety Fulvosa, (Fig. 46, b.)— Front icings greatly suffused with fulvous, especially in the 

 lower median space, which often inclines to ochraceous ; apical space more or less denned; oblique 

 median band distinct to median nerve, and orbicular spot with an ochre-colored centre. Described 

 from 5 specimens, bred Sept. 25th — Oct. 3rd, from corn-fed larva). 



Variety Obscura, (Fig. 46, c.) — Front wings of a much more uniform and darker color, either 

 grayish-brown with a slight vinous tint, or deep smoky brown inclining to black, or a deep warm 

 brown with but little gray ; apical space either entirely obsolete or but very faintly indicated ; ob- 

 lique fulvous band across upper middle of wing also obsolete; the ordinary lines either entirely 

 obsolete [one specimen only] or distinctly marked ; the ordinary spots sometimes obsolete, but 

 more generally indicated by fulvous lines. Described from 3 specimens, bred Sept. 21st — Oct. 2d, 

 from corn-fed larvae. 



Larva, (Fig. 45, a.)— Ground-color very variable, generally dark and pitchy-black when young, 

 but varying after the last moult from pale brown to pale dirty green, with more or less pink or 

 yellow admixed — all the markings produced by fine, more or less intense, brown, crimson and yel- 

 low mottlings. Dorsum brownish with a narrow line down the middle, rendered conspicuous by a 

 darker shade each side of it. A dark, subdorsal band one-third as wide as each joint is long; 

 darkest at its upper edge, where it is bordered and distinctly separated from dorsum by a yellow 

 line which, except on joint 11 where it deflects a little upwards, is quite straight; paler in the mid- 

 dle of each joint. A pale, either buff or flesh-colored, substigmatal band, bordered above and be- 

 low by a narrow, yellow and wavy line. Venter pale. Head pale yellowish-brown, with sometimes 

 a tinge of green or pink ; the triangular piece yellowish, the Y-mark distinct and white, the cheeks 

 with four more or less distinct lateral brown lines and with dark brown mottlings and nettings, 

 which become confluent and form a dark curved mark at the submargin behind the prongs and each 

 side of the stem of the Y. Stigmata large, brown, with a pale annulation, and just within the 

 lower edge of the dark subdorsal band. Legs either light or dark. Cervical shield darker than 

 body, with the narrow dorsal and subdorsal lines extending conspicuously through it : anal plate 

 also dark, narrow and margined by the pale subdorsal lines— both plates furnishing stiff hairs, but 

 without tubercles. Piliferous tubercles on joints 2 and 3, arranged in a transverse row, and quite 

 large, especially on joint 2; on joints 4-10 inclusive the superior eight are arranged as follows : 

 4 in a trapezoid in dorsal space, the posterior two as far again from each other as the anterior two, 

 and two near stigmata, one above and one behind ; on joint 11 the dorsal 4 are in a square, and on 

 joint 12 in a trapezoid, with the posterior and not the anterior ones nearest together : the thoracic 

 joints have each a large subventral tubercle just above the legs. Length 1.10-1.50 inch. Described 

 from numerous specimens. 



rupa. — Formed in the ground, without cocoon ; of normal form, bright mahogany-brown, and 

 with a distinct forked point at extremity. 



THE APPLE-TREE TUNT-CATERPILLAR, OR AMERICAN 

 LACKEY MOTH.— Clisiocatnpa Americana, Harr. 



(Lepidoptera, Bombycidaj.) 



What orchardist in the older States of the Union is not familiar 

 with the white web-nests of this caterpillar? As they glisten in the 

 rays of the spring sun, before the trees have put on their full summer 



