IIO ENTOMOLOGICAL XKNYS. [Apr., 'iQ 



Coleophora viburniella Clemens. 



Colcophora riburnicUa Clemens, Proc. Ent. Soc. Phila., I, 79, 1861 ; 

 Tin. No. Am., 167, 1872. 



This species was originally named from larva and case ; the 

 characteristic case described by Clements renders its recogni- 

 tion certain. Three cases with larvae feeding on black haw 

 (Viburnum pninifolium L.) were collected August 27, in 

 Clermont County, Ohio. From these one moth was reared, 

 emerging May 30 of the following year. The description of 

 the imago follows. 



Head white, slightly tinged with yellow ; palpi white with a little 

 fuscous on the under side. Antennae with the basal segment enlarged 

 with a yellowish white tuft projecting in front and a little at apex; 

 stalk white, annulate with dark brown. 



Thorax and base of fore wings whitish. The wings shade into straw 

 color, which becomes deeper toward apex and slightly coppery-tinged. 

 Hind wings grayish, toward the apex becoming concolorous with the 

 fore wings. Legs white. Abdomen white beneath, grayish yellow 

 above and fuscous along the mid-dorsal line. Expanse: 11.5 mm. 



Three cases are cut from the leaf ; the first cut from a mine in 

 the middle of the leaf, the second and third from the margin of 

 the leaf. Before forming the -second case, the first is attached 

 at the margin of the leaf, from which the larva mines into the 

 leaf, and then cuts out a triangular piece of leaf, of which the 

 angle projecting into the leaf forms the mouth, the other angles 

 of the triangle at the leaf margins forming the projections 

 "near the hinder end above and below" of which Clemens 

 speaks. The third case is formed likewise by the addition of 

 a triangular piece of mined leaf, similarly cut. Here, however, 

 the second case is attached very near the long very oblique 

 cut which forms the lower edge of the case. The upper edge 

 of the case is formed of a shorter slightly oblique cut and the 

 serrated margin of the leaf (the two remaining sides of the 

 triangle) ; the resulting pointed flat projection constituting the 

 "flattened wing-like appendage." The surface of the case is 

 doubly convex in a line from mouth to apex, the projections 

 on each side remaining flat. Length of case 10 mm. ; height of 

 wing-like appendage above the case 2.5 mm. 



When collected, the larvae were in process of constructing 

 the last case, and continued to feed for about six weeks. 



