STJPERFAMILY GELECHOIDEA 161 



Gnorimo schema 



One species of this large genus is known to be a leaf-miner. 

 It is a bit remarkable for the manner in which it combines 

 leaf-mining with tube building. Chambers (1873) has 

 told all we know about it. We quote him as follows: 



It constructs a case or tube of silk lined externally with its frass. 

 The tube is nearly flat, but curved, one side being convex and the 

 other concave, and it is wider at one end than at the other, and 

 attached at its narrower end to the under surface of the leaves, 

 and from it the larva passes into the leaf to feed, retiring into the 

 case when alarmed, and to pupate. It constructs but one case, 

 and I think the attachment of that one to the leaf is permanent, 

 and that the larva makes but one mine. It mines the leaves of 

 the skull-cap, Scutellaria latifolia. 



I have never found it except in a single locality — near the village 

 of Verona, in Boone County, Kentucky. There it is very abun- 

 dant in September and October. 



The species appears to be extremely local. It is still 

 known only from the one locality from which it was reported 

 by Chambers more than fifty years ago. 



Paralechia 



Our knowledge of the habits of a single species of this 

 genus, P. pinifoliella, we derive from Professor J. H. Corn- 

 stock's first report (1879) as Entomologist of the United 

 States Department of Agriculture. The larva is a miner 

 in the pines that have leaves of the thicker sorts, pitch 

 pine, scrub pine, etc. From his account of it, we quote as 

 follows: 



The end of the leaf, and in many cases the entire leaf above its 

 base, becomes dead and brown, and when opened it is found to be 

 entirely eaten out, and to contain, in the proper season, the larva 

 or pupa of the above-mentioned insect. 



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