Revision of the Australian Coccinellidae (Coleoptera).: Part 7.: Genus Bucolus Mulsant

The members of the endemic Australian genus Bucolus are revised. Nomenclatural history, diagnoses, illustrations and distribution are provided for each species. A key to the species is also presented. Seven new species are described: Bucolus caesariatus, B. cirrhosus, B. cyaneus, B. dolambiorum, B. idyleae, B. leucothrix, B. orbiculatus. The following new synonyms are proposed: Bucolus fourneti Mulsant, 1850 (= Bucolus nuytsiae Lea, 1902; = Bucolus nigripes Lea, 1902; = Bucolus obscurus Lea, 1902). Erichson, 1842 (= Bucolinus longicornis Blackburn, 1892). Lectotypes are designated for: Bucolinus longicornis Blackburn, 1892; Bucolus eonvexus Blackburn, 1,892; B. frater Blackburn, 1895; B. nigripes Lea, 1902; B. nuysiae Lea, 1902; B. obscurus Lea, 1902; Scymnus stragulatus Erichson, 1842 and Rhizobius blackburni Lea, 1908.