A revision of the sawfly family Orussidae for North and Central America (Hymenoptera--Symphyta, Orussidae / by Woodrow W. Middlekauff. (University of California publications in entomology ; v. 101)
A revision of the sawfly family Orussidae for North and Central America (Hymenoptera--Symphyta, Orussidae / by Woodrow W. Middlekauff.
(University of California publications in entomology ; v. 101)