488 MISC. PUBLICATION 657, U. S. DEPT. OF AGRICULTURE 
FicurE 115.—Tips of arborvitae leaves eaten out by the arborvitae leaf miner 
(Argyresthia thuiella). 
Famitry COLEOPHORIDAE 
Nearly one hundred species of Coleophoridae are known in North 
America. The adults are plain little moths with markings limited 
to dustings of scales of hghter or darker shades. The wings are nar- 
