1864.] 
427 
ning of the costal cilia, narrowly touched with white. Cilia concolorous with 
fore wings. Hind wings blackish, cilia concolorous. 
Antennse basal joint dark grayish-brown. Head and thorax, dark grayish- 
brown. Labial palpi grayish, grayish-brown externally. 
The case is made of the cuticle of the rose-leaf on which the larva 
feeds. It is a compressed cylinder, dilated slightly on the middle of 
the under edge and serrated above. Color dark ochreous. 
I took the larvae on the 19th of April, feeding on the opening buds 
of the sweet briar, the leaf of which is strongly serrated, and I found 
the same species on the common, hundred-leafed rose at the same time. 
The case of the latter differs from that of the larva of the sweet briar ; 
it is smaller, but of the same form, not serrated along the upper edge, 
and with a slight projection on the middle of the under edge ; its color 
is grayish-brown. The cases of both are attached to the thorns of the 
bush during the winter, or to one of the principal stems amongst the 
thorns, and it is not easy to distinguish them from the spines of the 
rose-bush. 
Variety. Two specimens were obtained from the cases of the sweet- 
briar feeders which varied in color from the others, although the cases 
were not distinguishable. The imagos have the fore-wings dark ochre¬ 
ous and the hind wings dark brown. 
The imagos appear during the latter part of May and early in June. 
There is a strong resemblance between the variety of C. Rosacella 
and the European C. Limosipennella the larva of which feeds on the 
elm-leaf. 
Easton, Pennsylvania. 
DASYCERA, Haw. 
Hind wings ovate. The subcostal vein is simple. The discal vein, 
which closes the discoidal cell, gives rise to two discal branches. The 
median is 3-branched, the two upper branches arising on a common 
stalk. The submedian and internal veins are distinct. 
Fore wings elongate, lanceolate. The subcostal vein subdivides into 
four marginal branches, the apical furcate, both branches reach the 
costa behind the tip. The»discal vein sends two branches to the hinder 
margin beneath the tip and the median vein is 3-branched. The fold 
is thickened at its tip and the submedian furcate at its base. 
