Porter, Charles C., <br/><br/>
A revision of the South American species of Trachysphyrus / 
Charles C. Porter. 
 - 368 páginas :  ilustraciones. 
 - Memoirs of the American Entomological Institute .
<br/><br/><label>Subjects--Topical Terms: </label><br/>TRACHYSPHYRUS.<br/>HYMENOPTERA.<br/>INSECTOS.
<br/><br/><label>Dewey Class. No.: </label>595.798