1 © CSIRO 2006 10.1071/IS05020_AC ISSN 1445-5226 Invertebrate Systematics, 2006, 20(3), 305–365. Revision of Nicrophorus in part: new species and inferred phylogeny of the nepalensis-group based on evidence from morphology and mitochondrial DNA (Coleoptera : Silphidae : Nicrophorinae) Derek S. SikesA,D, Ronald B. MadgeB and Stephen T. TrumboC ADepartment of Biological Sciences, University of Calgary, 2500 University Drive NW, Calgary, Alberta, T2N 1N4, Canada. B1637 16 Street S. E., Calgary, Alberta, T2G 3P6, Canada. CDepartment of Ecology and Evolutionary Biology, University of Connecticut, Waterbury, Connecticut, 06710, USA. DCorresponding author. Email:
[email protected] Abstract. Carrion beetles of the genus Nicrophorus Fabricius, 1775 (Silphidae) are well known for their biparental brood care and monopolisation of small vertebrate carcasses in subterranean crypts. Although the taxonomy of New World species has received modern attention, the fauna of Asia, primarily of the nepalensis-group of species, has not. Herein we revise this species-group and describe as new the following seven species: Nicrophorus charon Sikes & Madge (Sulawesi), Nicrophorus herscheli Sikes & Madge (Sumatra), Nicrophorus insignis Sikes & Madge (Flores Island), Nicrophorus melissae Sikes & Madge (Nepal, Bhutan), Nicrophorus reticulatus Sikes & Madge (Guadalcanal), Nicrophorus schawalleri Sikes & Madge (Gansu, Shaanxi, Sichuan Province) and Nicrophorus trumboi Sikes & Madge (Nepal, Bhutan). We obtained a preliminary phylogeny using morphology and mtDNA (COII). This was inferred using maximum likelihood and Bayesian methods with the Mkv and GTR+I+G models (parsimony was rejected by the Akaike information criterion for being excessively parameter-rich). The phylogenetic signal in the morphological dataset was not strong and results were confounded by a ‘long-branch′species, N.