Hopkins, A. D.  1857-1948. <br/><br/>
Technical papers on miscellaneous forest insects.  I. Contributions toward a monograph of the bark-weevils of the genus Pissodes. 
By A.D. Hopkins ... 
 - Washington,  Govt. Print. Off.,  1911. 
 - x, 68 p.  illus., xxii pl.  23 cm. 
 - United States. Dept. of Agriculture. Bureau of Entomology. Technical series,  no. 20, pt. 1 .
<br/><br/>Bibliography: p. 66-68. 
<br/><br/><label>LCCN: </label>agr11000040  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bark-weevil.<br/>Pissodes.
<br/><br/><label>LC Class. No.: </label>SB823  / .A31 no. 20, pt. I