Revision of the Australasian genus Orussobaius Benson (Hymenoptera: Symphyta: Orussidae)
The Australasian genus Orussobaius Benson is revised. Seven species are recognised: Orussobaius paniculus sp. n. from Papua New Guinea, and six species from Australia: O. badius sp. n., O. caligneus sp. n., O. mesembrinus Benson, O. minutissimus sp. n., O. minutus Benson, and O. wilsoni Benson. Orussobaius normani Rayment (new synonymy) is removed from synonymy with O. wilsoni and treated as a junior synonym of O. minutus instead. With a body length of only 2 mm, O. minutissimus sp. n. is the smallest currently known sawfly species in the world. A key is provided and distribution maps are shown for all species. The genus Orussobaius is redefined on the basis of all species currently included.
Document Type: Research Article
Affiliations: 1: Australian National Insect Collection, CSIRO Entomology, GPO Box 1700, Canberra, ACT 2601, Australia. 2: Zoological Museum, University of Copenhagen, Universitetsparken 15, DK-2100, Denmark.
Publication date: July 1, 2002