150 LEAF-MINING INSECTS 



A native species having a similar life history that has 

 come to have some economic important through the culti- 

 vation of pecans is the Pecan or Hickory case-bearer, Coleo- 

 phora caryaefoliella. Its hosts are nut-bearing trees — 

 namely, walnut, pecan, hickory and possibly other related 

 species. Its habits, development, and injuries parallel 

 those of the species just discussed. 



