Cohabitation with aggressive hosts: description of a new microhisterid species in nests of a ponerine ant with ecological notes.

A new clown beetle species, Bacanius neoponerae, is described from Mexican nests of the arboreal ponerine ant Neoponera villosa found in the tank bromeliad Aechmea bracteata. Adult beetles were found in brood chambers or inner refuse piles, but also outside the ant nests, in decaying organic matter between the bromeliad leaves. No direct interactions between ants and microhisterid beetles could be observed.

Review of the genus Saprinus Erichson, 1834 from Madagascar and adjacent islands with description of a new species (Coleoptera: Histeridae: Saprininae) Third contribution to the knowledge of the Histeridae of Madagascar.

Clown beetles belonging to the genus Saprinus Erichson, 1834 from Madagascar and adjacent islands are reviewed. The Malagasy fauna of Saprinus consists of seven species: Saprinus (Saprinus) erichsonii Marseul, 1855; Saprinus (Saprinus) fulgidicollis Marseul, 1855; Saprinus (Saprinus) basalis Fairmaire, 1898; Saprinus (Saprinus) cupreus Erichson, 1834; Saprinus (Saprinus) chalcites (Illiger, 1807); Saprinus (Saprinus) splendens (Paykull, 1811); one species S. (Saprinus) labordei sp.

Sarandibrinus, a new genus of Saprininae subfamily from Madagascar (Coleoptera, Histeridae) (Second contribution to the knowledge of the Histeridae of Madagascar).

Sarandibrinus araceliae, a new genus and species of the Saprininae subfamily is described from southern Madagascar. The new taxon exhibits autapomorphic characters for the Saprininae subfamily and is unusual especially for its large and deep prosternal foveae and the shape of spiculum gastrale. The description is accompanied by color habitus images, SEM micrographs, mouthparts and antenna line drawings and drawings of the male genitalia.

Malagasyprinus, a new genus of the Saprininae from Madagascar with description of two new species (Coleoptera, Histeridae, Saprininae) (First contribution to the knowledge of the Histeridae of Madagascar).

Based on the results of recent phylogenetic analysis of the higher taxa of the Saprininae as well as external morphological characters, especially the presence of deep and large prosternal foveae, and the shape and position of the sensory organs of the antennal club, the species Saprinus (s.str.) caeruleatus Lewis, 1905 is excluded from the genus Saprinus and a new genus Malagasyprinus, exclusive to Madagascar, is established for it.