128 ENTOMOLOGICAL NKWS. [May, '19 



writer's collection ; paratypes in the Academy of Natural 

 Sciences of Philadelphia and in the United States National 

 Museum. 



The larvae feed on the lower side of leaves of Greek valerian 

 (Polemoninm rcptans L.), where they mine out the entire 

 parenchyma, leaving silvery white patches. The mature case, 

 of almost pure white silk, except where the overwintering 

 grayer case marks its dorsal surface from mouth to one-half 

 its length, is cylindrical, 9 to 10 mm. long with scarcely re- 

 flexed mouth, and with flattened, broadly expanded two- 

 valved apex which is one and one-half times as broad as the 

 maximum breadth of the case elsewhere. The apex is slightly 

 asymmetrical, rather fish-tailed in shape. The mature cases 

 were first observed April 16 and 18, and the larvae continued 

 to feed for several weeks, pupating later on sticks and dead 

 leaves near the food plants, where they are conspicuous be- 

 cause of their white color. Forty-two moths emerged from 

 May 1 1 to June 2. 



Mined leaves were collected June 13. The larva is yellow 

 and makes a very fine whitish transparent thread-like mine, 

 much contorted, which at last encloses in outline a slightly 

 flattened ellipse, that portion of the leaf which is to be cut 

 out to form the first case. The portion cut out measures 2 

 mm. by i mm. This piece, in which the parenchyma is not 

 consumed, forms the foundation for the case. It is folded, 

 seam on under side and closely sewed together ; it extends to 

 the mouth of the case, but toward the apex, the case is made 

 entirely of pale greenish silk, this silken portion projecting 

 about half a millimeter beyond and of a slightly less diameter 

 than the leaf part, and lacking the expanded apex of the mature 

 case. Feeding ceases about July i, when the case is about 4 

 mm. long, and is not resumed until early the following spring. 



Coleophora ericoides n. sp. 



Head grayish white; second segment of palpi fuscous outwardly, 

 with a minute projecting tuft; third segment white, fuscous beneath. 

 Antennae simple, whitish fuscous, indistinctly annulate beneath only. 



Thorax and fore wings pale grayish ocherous. A rather distinct 

 white streak along the costal edge to beyond the middle, where it blends 



