260 PROCEEDINGS OF THE ACADEMY OP 



from the vivarium before I saw it. Both pass the winter in the larval state, 

 and may be taken in recent excrescences, during the latter part of April or the 

 beginning of May, and become imagos in JuDe. The larva is dirty whitish iu 

 color, with a brown head and shield, and scarcely one-half an inch long ; the 

 larger larva is quite an inch in length, with no distinctive markings. Pruni- 

 ramielea makes its cocoon of " frass " and silk in a gallery formed in the 

 wood, but near the surface. The pupa has minute spines on the dorsum and 

 is thrust from the cocoon at maturity. 



The following species, I believe, forms a new genus. It is rather rare, at 

 least I have met with the imago but few times. I know nothing of its embry- 

 onic states. In appearance the imago bears considerable resemblance to the 

 figures of Euplocamus B o 1 e t i of Europe, but its generic characters separate it 

 from the latter very distinctly. 



Amydbia. 



Head free, as broad as the thorax, roughly haired, (the hairs of the front 

 ascending and those of the vertex inclined from each side toward the median 

 line, or having a stelliform arrangement behind the antennae.) Ocelli none. 

 Eyes small, hemispherical and salient. Antennas simple in both sexes, moder- 

 ately thick, with joints closely set and with whorls of scales, one-half us long 

 as the fore wings and scarcely two-thirds as long as the body. Maxillary palpi 

 extremely small and 2-jointed. Labial palpi with the second article beneath hairy 

 and formed like a brush; the third, slender and ascending. Tongue wanting. 

 Wings narrow, much exceeding the tip of the abdomen; the anterior, elliptical, 

 cilia rather long, especially at the inner angle, giving the wing the appearance 

 of being angulated ; posterior, obtusely ovate, with moderately long cilia 

 behind. 



A. effrentella. Labial palpi yellowish brown, with the second article 

 dark brown exteriorly. Head and front yellowish brown. Thorax dark brown, 

 varied with yellowish. Fore wings fuscous, varied with yellow, which prevails 

 along the inner margin, with fuscous spots around the apical margin, and in the 

 $ a large discal fuscous patch. The fore wings of the ^ have more of the 

 yellowish hue than the 9 ; c ^i a yellowish. Hind wings pale brownish yel- 

 low, cilia the same. Exp. al. 8 to 11 lines. 



The following species likewise form a new genus, at least I am not aware 

 that any has been formed into which they can be received. Plumifron- 

 t el la is found here in June and July, when it may be taken at light. I am 

 unacquainted with the embryonic history of the species described, and have 

 never met with the female Plumifrontella. The genus, I think, belongs 

 to the group E x a pa ti dae , and as the females in some of the genera are 

 apterous, that of Plumifrontella may be unsupplied with wings. The 

 antennae should be examined very carefully, otherwise their peculiar structure 

 will be overlooked and mistaken for simple, filiform organs. 



Anaphora. 



Head hairy, concealed by the labial palpi in the tf, free in the 9 Ocelli 

 none. Eyes small. Antennae but little longer than the thorax, serrated beneath, 

 with the ends of the articles finely ciliated. Maxillary palpi moderately long, scaly 

 and 3-jointed in both $ and $> . Labial palpi in the $ greatly developed, 

 ascending and thrown back on the dorsum of the thorax, which they equal in 

 length, the first article scaly, arctate and equal, to the superior margin of the 

 eyes, and the two succeeding ones equal and furnished with abundant spread- 

 ing hairs ; in the 9 short, not ascending above the eyes, articles nearly equal, 

 the first and second hairy beneath, the third rather smooth and porrected. 

 Tongue wanting. Wings exceeding the tip of the abdomen ; the anterior with 

 costa nearly straight, hind margin obliquely convex, inner margin nearly 



[Sept. 



