Abstract
Two new species of Eupholus Boisduval from Papua New Guinea are described as new: Eupholus mimicus sp. n. and E. sedlaceki sp. n.. A key to the Eupholus species with yellow colour patterns is provided. E. sedlaceki is closely related to E. euphrosyne Porion but differs in coloration. Male and female terminalia of E. euphrosyne are illustrated for comparison. E. mimicus is superficially very similar to E. euphrosyne, but its yellow colour pattern is composed of scales whereas in the latter it is formed by loose particles. These two species belong to different species groups, and the conspicuous colour patterns have evidently evolved convergently. The occurrence and function of extracuticular pigments among species of Eupholini is discussed.References
Hadley, N.F. (1979) Wax secretion and color phases of the desert Tenebrionid beetle Cryptoglossa verrucosa (LeConte). Science, 203, 367–369.
Kuschel, G. (2008) New tribe, new genus and species for an Australasian weevil group with notes and keys (Coleoptera, Curculionidae). Revue française d'entomologie, 30 (2–4), 41–66.
Limoges, R. & Porion, T. (2004) Eupholus. Nouveaux Eupholus de Nouvelle Guinee - New Eupholus from New Guinea. Les Coléoptères du Monde - The Beetles of the World, Vol. 19, Supplement 2. 7 pp., Hillside Books, Canterbury.
Lyal, C.H.C., Douglas, D.A. & Hine, S.J. (2006) Morphology and systematic significance of sclerolepidia in the weevils (Coleoptera: Curculionoidea). Systematics and Biodiversity, 4 (2), 203–241.
McClain, E., Seely, M., Hadley, N.F. & Gray, V. (1985) Wax blooms in Tenebrionid beetles of the Namib desert: correlations with environment. Ecology, 66 (1), 112–118.
Meregalli, M. & Osella, G. (2007) Studies on Oriental Molytinae. IV. Anonyxmolytes lilliput new genus and new species from Vietnam (Coleoptera, Curculionidae). Italian Journal of Zoology, 74 (4), 381–388.
Porion, T. (1993) Eupholus. Les Coléoptères du Monde - The Beetles of the World, Vol. 19. 112 pp. Sciences Nat, Venette.
Porion, T. (2000) Eupholus. Nouveaux Eupholus de Nouvelle Guinee - New Eupholus from New Guinea. Les Coléoptères du Monde - The Beetles of the World, Vol. 19, Supplement 1. 11 pp. Hillside Books, Canterbury.
Riedel, A. (2002) Two new species of Eupholus Boisduval (Coleoptera, Curculionidae, Entiminae) from West New Guinea, a discussion of their taxonomic characters, and notes on nomenclature. Zootaxa, 90, 1–16.
Riedel, A. (2009) Revision of the genus Penthoscapha Heller (Coleoptera, Curculionoidea, Entiminae, Eupholini) with notes on the genera of Eupholini from New Guinea. Zootaxa, 2224, 1–29.
Riedel, A. & Porion, T. (2009) A new species of Eupholus Boisduval (Coleoptera, Curculionidae, Entiminae) from Papua New Guinea. Mitteilungen der Münchner Entomologischen Gesellschaft, 99, 21–24.
Seago, A.E., Brady, P., Vigneron, J.-P. & Schultz, T.D. (2009) Gold bugs and beyond: a review of iridescence and structural colour mechanisms in beetles (Coleoptera). Journal of the Royal Society Interface, 6, S165–S184.
Thompson, R.T. (1968) Revision of the genus Catasarcus Schönherr (Coleoptera: Curculionidae). Bulletin of the British Museum (Natural History), Entomology Series, 22 (8), 359–454, 1 plate.