Alexander-Perkins Spence <br/><br/>
Biology of the gall midge rhopalomyia hurtipes O.S. ( Diptera : Cecidomyiidae ) on solidago junce ait 

 - New York  Cornell University Agricultural experiment station  1969 
 - 58p 
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>595.77  / SPE