Taxonomic changes in palaeotropical Xyleborini (Coleoptera, Curculionidae, Scolytinae) Author Hulcr, Jiri text ZooKeys 2010 56 105 119 http://dx.doi.org/10.3897/zookeys.56.520 journal article http://dx.doi.org/10.3897/zookeys.56.520 1313-2970-56-105 Truncaudum circumcinctus (Schedl) comb. n. Premnobius circumcinctus Schedl, 1941 Premnobius circumcinctus (Schedl): Wood and Bright 1992 Xyleborus circumcinctus (Schedl): Schedl 1962b Specimens examined. Uganda ( Premnobius circumcinctus , holotype, NHMW). Comments. The only known African Truncaudum . Truncaudum synapomorphies: impressed submentum, antennal club type 1, curved outer edge of protibiae, complete denticulated circumdeclivital costa. Very similar to Truncaudum impexus [(Schedl): Hulcr and Cognato (in press) ], except declivity slightly convex (mostly flat in Truncaudum spp.), antenna type 1, several adjacent denticles on each stria on the upper edge of circumdeclivital costa (mostly a single flat tubercle in Truncaudum spp.). Otherwise remarkably similar to Asian relatives. Length: 2.8 mm. Described as Premnobius by Schedl (1941) , later treated as Xyleborus (Schedl, 1962b), but combination never offically published.