106 THE CANADIAN ENTOMOLOGIST 



number of very fine, somewhat broken, faint blackish lines along 

 the back and sides. 



It would seem that the original association of the larva with 

 cecidomyid galls was merely accidental, due to the frequency of 

 the occurrence of these galls on this species of willow, from which, 

 in this case, remarkably enough, they were almost entirely absent. 



The ornamentation of all the bred specimens is very constant, 

 and the brick-red colour easily distinguishes them from their 

 nearest ally, A. fungivorella Clem. 



Recurvaria dorsivittella Zeller. 



Gelechia dorsivittella Zeller, Verb, zool.-bot. Ges. Wien, XXIII, 

 267, 1873. 



Recurvaria dorsivittella Busck, Proc. U. S. N. M., XXX", 813- 

 1903; Dyar, List N. A. Lep., No. 5603, 1902. 



The larva feeds on sweet gum {Liquidamhar styraciflua L.) 

 and is common in Clermont County, O., where the sweet gum 

 forms a large part of the forest over the flat, undrained areas. 



A tube of brownish silk and frass, about 1 cm. long, with a 

 diameter of about 1 mm., is spun along a vein on the underside 

 of a leaf. The tube is open at both ends, but at each end the free 

 side projects slightly over the opening. Along the sides of the 

 tube, and around each end, the larva eats irregular patches of leaf 

 substance, leaving the upper epidermis and veins; gradually it feeds 

 farther from the opening of the tube. When found during the 

 later larval stages, the leaf, near the vein, where the tube is at- 

 tached, is usually perforated with irregular holes, due doubtless 

 to disintegration of the epidermis where the underneath part of 

 the leaf was consumed during the early larval period. 



At pupation, the ends of the tube are closed. 



The larva? were collected August 27 and continued to feed for 

 a couple of weeks. Imagos in May of the following year. 



Elachista praelineata, n. sp. 

 Face gray, shining; head blackish behind. Palpi fuscous 

 beneath, paler above; terminal segment with its tip and a broad 

 band in the middle fuscous. Antennae blackish with paler annula- 

 tions; last one or two segments pale. 



