Foster, George Arnold, <br/><br/>
A revision of the Nearctic species of the genus Trixoscelis Rondani (Diptera: Heleomyzidae: Trixoscelidinae) / |c George A. Foster and Wayne N. Mathis. 

 - Washington, D.C. : |b Smithsonian Institution Scholarly Press, |c 2011. 
 - viii, 128 p. : |b ill.(some col.), maps ; |c 28 cm. 
<br/><br/> Shipping list no. 
<br/><br/>Includes bibliographical references (p. [125]-128).. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Heleomyzidae |v Classification.<br/>Government publications
<br/><br/><label>LC Class. No.: </label>QL537.H44 |b F67 2011