NATURAL SCIENCES OF PHILADELPHIA. 13 



one from the middle of the secondary cell, and three from the end of it to the 

 costa. Three nervules from the discal nervure to the inner margin, heneath 

 the tip. The median without branches ; beyond the discal, it proceeds to the 

 inner margin, as a 9ingle short vein ; perhaps it may be bifid. The submedian 

 is simple. Hind wings lanceolate, clothed with scales, with the discoidal 

 cell closed by a very faintly indicated nervure. The costal nervure is long, 

 and extends nearly to the tip of the wing. The subcostal is simple, and. 

 wanting from near the origin of the discal nervure, where it is slightly pro- 

 duced inwardly, but well indicated thence to near the tip. The discal ner- 

 vure gives rise to a discal branch which quickly becomes bifid, and its 

 branches well defined near to the tip, above and beneath. The median is 

 well indicated, and is three-branched, the last very faintly connected with 

 the second. No submedian nervure. 



Size very small. Head rough and hairy above and in front. Ocelli none. 

 Eyes rather large, round, and salient, not set on a naked circular portion of 

 the head, nor with a naked space above the eyes. Antennse about one-half 

 as long as the anterior wings, inserted laterally, and microscopically pubes- 

 cent beneath ; basal joint moderately long, stalk roughened with scales. 

 Maxillary palpi rather long and folded. Labial palpi moderate, slender, 

 smooth, cylindrical, separated, and somewhat drooping ; the third joint nearly 

 as long as the second, which has a few bristles at its end and beneath. 

 Tongue ?. 



D. velatella . Labial palpi dark brownish. Head brownish gray. An- 

 tennse grayish fuscous, with the basal joint whitish, having a blackish, ex- 

 ternal streak. Fore wings whitish, dusted with dark fuscous, with a few 

 dark fuscous spots along the costa, and one of the same hue about the 

 middle of the disk, beneath which, on the fold, is another of the same hue. 

 Toward the apex, in the middle of the wing, beneath the last costal spot, is a 

 small, dark fuscous spot, sometimes connected toward the base of the wing 

 with a dusted streak of the same hue; cilia whitish, somewhat dotted with 

 dark fuscous. Hind wings grayish brown ; cilia the same. 



The relationship of this insect tolncurvaria and its allied genera, espe- 

 cially to Acerifoliella and toEudarcia, is very obvious. 



Bucculatrix? Hiibner. 



The anterior wings lanceolate ; the discal cell is closed acutely behind, with 

 the subcostal nervure faintly indicated from the middle of the wing to the base, 

 and sending/owr nervules to the costa, the first about the basal third, and its 

 origin from the subcostal faintly indicated ; the three others arising near the 

 apical portion of the wing, with the subcostal between the second and last rather 

 faintly indicated ; the third nervule scarcely noticeable, and the last branch 

 arising from the apex of the discoidal cell. The median is strongly indicated 

 throughout, and sends off to the inner margin at its posterior end, a very 

 faintly indicated branch, whilst the apical branch, which appears to be a con- 

 tinuation of it, becomes bifid behind the tip of the wing. The posterior are 

 narrowly lanceolate, without discoidal cell. The subcostal nervure is central, 

 and subdivides beyond the middle of the wing into three branches, two to the 

 inner margin, and one along the exterior margin to the tip. The median ner- 

 vure is simple. 



Size extremely small. Head rough, tufted in the middle. Face smooth and 

 retreating. Eyes salient, visible in front. Antennse with a spreading, basal 

 eye-cap, expanded above the eyes ; stalk very slender, simple, scarcely more 

 than one-half so long as the body. No labial or maxillary palpi. Tongue 

 naked, very short, not one-half as long as the anterior coxae. 



B. ? coronatella. Face yellowish-white. The head with the tuft pale 

 orange chrome ; the eye-caps pale yellow, touched behind with orange chrome. 

 Antennse yellow, dotted above with dark brown. Fore wings pale orange 

 I860.] 



