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A new endemic Madagascan genus and species of spider beetle from Toliara Province in southwest Madagascar is described. The genus Kelypitnus gen. nov. is characterized by its small size and dark brownish-black color, a short lateral margin on the pronotum, a concave proventrite, 10-segmented antennae, and the presence of a small, conspicuous raised ring with a central cavity on the first abdominal ventrite in the male. The single species, Kelypitnus steineri sp. nov. is diagnosed, described, and illustrated and compared to the two most similar genera known, Neoptinus Gahan and Pitnus Gorham. Key words: Kelypitnus, Coleoptera, Ptinidae, new genus, Madagascar, Bostrichoidea, endemic

SummaryThe archaeoentomological study of insect remains recovered from a pre-Columbian funerary bundle (10th–11th centuries ad) is presented and illustrated. Among this material, 12 species belonging to 10 families and four distinct orders have been identified. From the biological data of the different taxa, some hypotheses about the funerary practices of the hunter–gatherer semi nomads of Northern Mexico are proposed.