170 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 



shaped spots on a straw-yellow grouud, and the reddish-orauge mam- 

 millae giving rise to pale hairs will distiuguish this singular larva. 



Larva. — Head very large, full, bilobed, the lobe full and rouDded, much wider 

 thaa the body, pale, marbled with lilac. Five pairs of abdominal feet. Body short 

 and thick, somewhat flattened, tapering somewhat toward the tail ; straw-yellowish, 

 with a row of dark broad, diamond-shaped, brown spots along the back, the spots 

 connected and centered with yellowish. Four setiferous dorsal reddish rounded warts 

 arranged in a trapezoid, with another wart on the side above each stigma. Body 

 beneath paler. Length, 20'"™. 



Moth. — Of the general shape of A. hamamelis, but very different in color and with 

 distinct sagittate marks. Gray with a bright tinge, shaded with testaceous. A 

 black basal dash extends to the twice strongly angulated t. a. line, which is gemi- 

 nate, the inner more distinct line composed of raised scales. Above the basal dash 

 the humeral space is pale beyond the geminate basal half-line. Median space wide 

 superiorly, owing to the superior wide projection of the distinct and regularly den- 

 ticulated t. p. line Orbicular rather large, pale, and vagut-, with clouded center. 

 Costal black marks evident. Median shade apparent by raised darker scales. Reni- 

 form vague, bisannulate, stained with deep testaceous. A very narrow black dis- 

 tinct dash at internal angle, broken at the pale continued s. t. line. A third black 

 dash, indicated within s. t. line, opposite the disk. Secondaries fuscous, with the 

 distinct black discal spot and dentate line of the paler under surface reflected. Ex- 

 panse of wings, 1.45 inch. (Grote.) 



230. Scopelosoma jnorrisoni Grote. 

 Order Lepidoptera; family Noctuid^ 



The larvae of five species of this genus have, according to Mr. R. 

 Thaxter, the same form and habit; are omnivorous, and live in a case 

 between two leaves, or within the folds of a single leaf; when young 

 making a silk-covered burrow between two ribs or eating out a cavity 

 in a bud somewhat after the manner of a Torticid. When fully matured 

 and somewhat soiled, it is hardly possible to separate the species. 8. 

 jnorrisoni and walTceri are the most difficult to separate, but the more 

 even and richer color of the subdorsal and dorsal regions, together with 

 the obliteration of the dorsal and subdorsal lines, and the clear white 

 lateral line, render the latter species sufficiently recognizable when 

 fresh. The lateral lines are substigmatal, the stigmata black, the body 

 sparsely covered with minute tubercles bearing short colorless hairs in 

 all the species. Form cylindrical, tapering very slightly, head moder- 

 ate. The eggs of the present species were laid on oak twigs April 22. It 

 molts five times. 



Egg. — Stone color changing to reddish ; flattened inferiorly, a central superior de- 

 pression from which radiate beaded ridges. Transverse diameter about 6™™. 



First latval alage.—When just hatched, color livid yellowish green with blackish 

 superior and anterior blotches. Head large, jet black. Thoracic and abdominal legs 

 black. A frontal semi-circular black plate on segment 1. After feeding and when 

 nearly grown indications of a dorsal, subdorsal, and lateral streak. Color light 

 green. Length 2 to 3™™. 



Second stage. — A dorsal, two subdorsal, and a substigmatal whitish line, the two 

 subdorsal ones less clearly marked, especially the inferior. Setiferous tubercles, 

 which bear short colorless minute hairs, blackish, indistinctly ringed. 



