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2 ¢ TO ea fe 
tae oa 7. : ot ZA. ‘ 
Buiretin No. 21 1921 ENTOMOLOGICAL SERizs, No. 1 
‘ie BULLETIN 
of the 
[LLOYD LIBRARY 
BOTANY, akc AND 
* MATERIA MEDICA 
ta 
a 
:'o ie 
1 iAL& CG LLOYD 
7 CINCINNATI, OHIO 
ENTOMOLOGICAL SERIES, No. 1 
The Biology of 
“NORTH AMERICAN CADDIS 
ORLY LARVAE 
eae | By 
me JOHN THOMAS LLOYD 
