Tortricidae 



which is lodged the larva of a species of Tortricid, which has the 

 power, by changing its position on the inside of the seed, of 

 making the seed move. In the case of Croton seeds the insect is 

 Cydia saltitans Westwood ; in the case of Sebastiania seeds the 

 insect imparting the motion to the thing is the larva of Enar- 

 monia sebastianice. 



It is quite impossible for us in a work of the present scope to 

 give even an epitome of the nearly five hundred species of Tor- 

 tricids which are at present known to occur within the limits of 

 the United States and Canada. We shall content ourselves with 

 an account of a few species, which will serve to show the reader 

 what a mine of interesting inquiry presents itself to view in this 

 single family of beautiful little moths. 



Genus EUCOSMA Hiibner 



(i) Eucosma scudderiana Clemens. (The Misnamed Gall- 

 moth.) 



Syn. saligneaiia Clemens ; affusana Zeller. 



The moth was called " the Misnamed Gall-moth" by Professor 



Riley because Clemens 

 had given it a specific 

 name which implied that 

 it was a denizen of wil- 

 low-trees or willow- 

 galls, when in fact it has 

 been ascertained to live 

 in the galls of the Golden- 

 rod (Solidago). The in- 

 sect is not uncommon in 

 western Pennsylvania, 

 and is possibly an inqui- 

 line or intruder in the 

 galls, which are pro- 

 duced by another spe- 

 cies, Gnorimoschema gallcesolidaginis Riley. 



(2) Eucosma dorsisignatana Clemens, Plate XLVIII, Fig. 

 27, 8. 



Syn. similana Clemens ; distigmana Walker ; clavana Zeller ; graduatana 

 Walsinsrham. 



Fig. 239.-2?. scudderiana. a, moth; b, lar- 

 val skin protruding from a gall of the Golden- 

 rod. (After Riley.) 



418 



