Abstract
A new genus of marsh beetles (Coleoptera: Scirtidae: Scirtinae) from Southeast Asia is described to accommodate Contacyphon peterseni (Klausnitzer, 1973) from Bismarck Archipelago and three newly described species: Calvariomorphus malayanus sp. nov. (type species of the genus), C. sakaii sp. nov., and C. palauensis sp. nov. Morphology and relationships between Calvarium-like taxa, defined on the basis of several common morphological features (compact body, very narrow clypeus, deep subantennal fossae) are discussed.
References
Friedrich, F. & Beutel, R.G. (2006) The pterothoracic skeletomuscular system of Scirtoidea (Coleoptera: Polyphaga) and its implications for the high-level phylogeny of beetles. Journal of Zoological Systematics and Evolutionary Research, 44 (4), 290–315. https://doi.org/10.1111/j.1439-0469.2006.00369.x
Klausnitzer, B. (1973) Zur Kenntnis der Cyphon-Fauna der Philippinen, Sumbawas, Neuguineas und des Bismarck-Archipels (Coleoptera, Helodidae). Folia Entomologica Hungarica, 26 (Supplement), 97–110.
Kuijten, P.J. (1992) A revision of the genus Parastasia in the Indo-Australian region (Coleoptera: Scarabaeidae: Rutelinae). Zoologische Verhandlungen, 275, 1–207.
Lawrence, J.F. & Yoshitomi, H. (2007) Nipponocyphon, a new genus of Japanese Scirtidae (Coleoptera) and its phylogenetic significance. Elytra, 35 (2), 507–527.
Ruta, R. (2008) Contribution to the knowledge of Seychellois Scirtidae (Coleoptera: Scirtoidea). Zootaxa, 1913, 49–68. https://doi.org/10.11646/zootaxa.1913.1.3
Ruta, R. (2010) Revision of the genus Calvarium Pic, 1918 (Coleoptera: Scirtidae). Part 1. Redescription of the genus and catalogue of described taxa. Annales Zoologici, 60, 341–350. https://doi.org/10.3161/000345410X535343
Ruta, R. (2019) Calvariopsis gen. nov., a new genus of Neotropical Scirtidae (Coleoptera: Scirtoidea). Zootaxa, 4604 (1), 1–41. https://doi.org/10.11646/zootaxa.4604.1.1
Watts, C.H.S. & Zwick, P. (2019) Scirtidae Fleming, 1821. In: Ślipiński, A. & Lawrence, J.F. (Eds.), Australian Beetles. Archostemata, Myxophaga, Adephaga, Polyphaga (part). CSIRO Publishing, Clayton South, pp. 221–248.
Zwick, P. (2013) Australian marsh beetles. 3. A restricted concept of genus Cyphon, Australian species of Cyphon s. str., and the new Australasian genus Nanocyphon (Coleoptera: Scirtidae). Genus, 24 (2), 163–189.
Zwick, P. (2014) Australian Marsh Beetles (Coleoptera: Scirtidae). 6. Genera Calvarium Pic, Papuacyphon Zwick, and Ypsiloncyphon Klausnitzer. Zootaxa, 3846 (1), 1–41. https://doi.org/10.11646/zootaxa.3846.1.1
Zwick, P., Klausnitzer, B. & Ruta, R. (2013) Contacyphon Gozis, 1886 removed from synonymy (Coleoptera: Scirtidae) to accommodate species so far combined with the invalid name, Cyphon Paykull, 1799. Entomologische Blätter und Coleoptera, 109, 337–353.