CADDIS-FLIES 283 



HYDROPTILID^ 

 The Hydroptilidae are minute insects, of which 

 McLachlan says that they "may be justly termed 

 Micro-Trichoptera, for the largest European form 

 expands to no more than 10 mm. and the smallest to 

 only 3^ mm." I do not think that a family, the largest 

 members of which measure across their outstretched 

 wings no more than 10 mm. or approximately '\ of 

 an inch, is of any great interest to the fisherman. 



