THE STATE ENTOMOLOGIST. 133 



at one side of the gall, and communicating above with a small 

 closed-up tubercle (See Fig. 98, d,). At the bottom of this channel 

 the larva (Fig. 98, 5, enlarged), which is whitish with a conspicuous 

 black head and black collar, may always be found, and it does not 

 transform to the chrysalis state till a few weeks before appearing as a 

 moth. The tubercle near the top of the gall is evidently caused by 

 the young larva penetrating the stem when it first hatches out; and 

 this larva must, after it has burrowed the proper length down the 

 stem, turn round and widen the burrow right up to the point of en- 

 trance; for it is from this point that the moth escapes in the spring. 

 The moth, of which Figure 98, «, represents an enlarged female, is 

 easily distinguished from most other small moths belonging to the 

 same family (Tlneidce) by its beautifully tufted front wings, which 

 are not easily represented in a wood-cut. It is of a yellowish-brown 

 color, marked with darker brown, and the males are generally a little 

 darker than the females. This little moth was first described by Clem- 

 ens (Proc. Ent. Soc. Phil., Vol. II, p. 419), who named the genus in 

 honor of Mr. Walsh, its first discoverer, and so far as I am aware it is 

 the only representative of the genus. 



The twigs invariably wither and dry up above this gall, but as the 

 shrub has no particular value, the little gall-maker may be placed 

 among the harmless insects. 



Walshia amorphella— Lcn-a— Length 0.35—0.40 inch. Cylindrical, tapering each way, but 

 more especially towards anus. Yellowish-white, each segment with about two distinct transverse 

 folds. Two dorsal rows of pale but polished piliferous spots, two to each segment ; stigmata 

 round, jet black with a white centre, with a pale piliferous spot above, and two contiguous ones on 

 a lateral fold, below each ; on joints 1 and 2 the folds are moM numerous and the piliferous spots 

 are larger and arranged in a transverse row. Head either black or dark brown, the trophi except 

 the maxillfE white, and the eyelets, arranged in a crescent, also pale. Cervical shield same color as 

 head, divided in the middle by a distinct pale line. Both have a few white hairs, arising from pale 

 points. Anal shield small and brown. Thoracic legs pale but slightly horny, transparent, fur- 

 nished with hairs, and with two basal semi-circular brown lines behind, the largest terminating on 

 the inside, in a black thorn. Prolegs very small and scarcely distinguishable except by a faint 

 brown circular rim at extremities, and a still fainterone at their base. Described from numerous 

 specimens, all very uniform. 



Pupa — Unknown. 



Moth— Front wings yellowish-fuscous, with a rather large blackish brown patch at the base of 

 the wing, somewhat varied with spots of the general hue, and a blackish-brown tuft, having the 

 scales directed toward the tip of the wing, on the basal third of the fold, and a smaller one above 

 it near the costa. Near the end of the fold is another small tuft of the general hue, having the 

 ends of the scales tipped with dark brown, and in the middle of the wing nearly adjoining the lat- 

 ter is a large tuft of the general hue. Above the end of the fold is a small blackish-brown tuft, 

 the scales of which are not so much erected as in the other tufts ; between this and the central tufts 

 is a blackish-brown patch which sends a streak of the same hue into the fold. The apical portion 

 of the wing is somewhat discolored with brown, and along the inner margin, at the base of the cilia, 

 are five or six black dots. Cilia dull testaceous. [Hind winirs shiny yellowish-brown, long, nar- 

 row, lanceolate, with very long cilia] Antennae fuscous [the basal joint long, smooth andclavate]. 

 Head and thorax blackish-brown ; labial palpi yellowish-fuscous. [Abdomen above dark brown, the 

 joints bordered behind with gray, the terminal joint with a yellow tuft. Legs short, the tarsi only 

 of hind pair reaching beyond abdomen ; marked with gray and brown. Under surface uniform 

 grayish-brown, the hind wings somewhat paler, and all the wings bordered with a paler line. 

 Length 0.20 ; alar expanse 0.53 inch.] (After Clemens). 



