ENTOMOLOGICAL CONTRIBUTIONS NO. III. 



By J. A. LINTNEE. 



I. ON THE LARVA OF EUDRYAS UNIO HDBff. AND ALLIED FORMS. 



On the 9th of September the larvae of this moth were found feed 

 ing on Epilobium coloratum growing in a swampy portion of a pas 

 ture. About thirty individuals were collected during a few minutes 

 search, two or three of the larvae, in some instances, occurring on the 

 same plant. They had nearly attained their maturity ; some of their 

 number, a day or two after their collection, buried themselves in the 

 moist sand in which were inserted the plants upon which they were 

 fed, and on the 16th a pupa was observed, partially extruded from 

 the sand. Only four of the larvae were carried through to their pupal 

 change, it having been inconvenient to supply them with suitable 

 food. The pupae were kept during the winter in a moderately warm 

 apartment, and on the 8th of April the first disclosed its imago. 



The larva bears a strong resemblance to those of E. grata (Fabr.) 

 and Alypia octomaculata (Fabr.) in shape, markings and colors. Its 

 prominent features are its bands on each segment of white, black and 

 orange (a single orange one occurring on the center of the segment), 

 and a hump on the eleventh segment. A detailed description is as 

 follows : 



Head rounded, its diameter somewhat exceeding one-half that of the 

 body, orange with black spots, of which there is an oblong one near 

 the base of the clypeus, two semi-ellipsoidal ones surmounting its apex 

 and a small quadrangular one on each side; a perpendicular row of 

 five spots on each side of the clypeus of which the second superior 

 one is the largest, a spot above the ocelli, and a row of three behind 

 them. Body tapering regularly toward the head, from the eleventh 

 segment, which is elevated in a hump. First segment white, with 

 two transverse bands of black spots, and with two black bands only 

 seen when extended. The abdominal segments have each three 

 white and three black bands on each side of a central orange band. 

 The orange band is the broadest ; it is marked dorsally on its anterior 



