Metcalf, C.   L <br/><br/>
Syrphidae of Maine  / 
C. L. Mctcalf 
 - Orono  :   Agricultural Experiment Station 
 - p. 194-26 
 - Orono. Agri. Exp. Sta., Bull.; 253 .
<br/><br/><label>LCCN: </label>202098 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Syrphidae