The world species of Aprostoma Guérin-Méneville are described, keyed and illustrated. The genus currently includes 8 species distributed in the tropical part of Central and West Africa and Madagascar. The occurrence on Sri Lanka is questioned and is postulated to be based m introduction or a mislabelled specime. Aprostoma mroczkowskii sp. nov. is described from Cameroon. Aprostoma lineare Grouvelle,...
First stage larve of ovoviviparous tenebrionid beetles (melanocratoid Platynotina, Platynotini) from Madagascar are described and illustrated: Sebastianus simplex Iwan, S. projectus Iwan, Styphacus bartolozzi Iwan, S. kochi Iwan, Melanocratus ferreri Iwan. Viviparity in beetles (Carabidae, Chrysomelidae, Micromalthidae, Staphylinidae and Tenebrionidae) is discussed.
The genus Styphacus Fairmaire, 1901 (type species: Styphacus decorsei Fairmaire, 1901) is revised and illustrated. Three new species are described: Styphacus drugmandi sp. nov., S. girardi sp. nov. and S. pauliani sp. nov. Key for species determination is provided. The genus belongs to melanocratoid group of the tribe Platynotini, and represents of the Southern Malagasy endemic fauna.
The genus Phylacinus Fairmaire, 1896 (type species: Phylacinus asperipennis Fairmaire, 1896) is revised and illustrated. New species is described: Phylacinus ferreri sp. nov. Key for species determination is provided. Lectotype and paralectotype are designated for Phylacinus asperipennis Fairmaire, 1896. The genus represents of the Malagasy endemic fauna.
Malagasy species Clastopus aberlenci sp. nov. (female and the first-stage larva), of the melanocratoid Platynotina is described and illustrated. The diagnostic characters of the known first-stage larvae are presented. Key determination for all known species of the genus is provided.
Madagascan species of the genus Chiridopsis Spaeth, 1922 are revised. Nine species occur on this island, five of them are described as new to science: Chiridopsis atricol- lis, Ch. levis, Ch. maculata, Ch. marginepunctata, and Ch. nigroreticulata. New records and a key to the species from Madagascar are given.
A new genus and species of flightless spider beetle from southwestern Madagascar, is described. The most notable morphological features are lateral spines on the pronotum and elytral epiplura and a diverse array of setal vestiture. Characteristics differentiating this new genus and species from all others are discussed and illustrated and the probable biology hypothesized.
The catalogue of all known species of the melanocratoid lineage of the subtribe Platynotina Koch, 1953 is presented. Eight genera containing 30 species are listed. The data of primary and secondary types is provided. Distribution of the species is listed and illustrated on 9 maps. New distributional data is published for: Melanocratus fairmairei Iwan, 1996, M. validipes Fairmaire, 1895, Sebastianus...
The egg case and larvae of all three instars of the cascade beetle Tritonus complanatus Short, 2008 (Coleoptera: Hydrophilidae) are described based on specimens found co-occurring with adults and associated with them by comparing histone 3 nDNA sequences. The morphology of the larva is congruent with the phylogenetic position of Tritonus Mulsant, 1844 in the Paracymus-group of the Laccobiini, but...
A new scaphidiine species, Toxidium cavicola, found in a deep part of a cave in the Tsingy formation, Madagascar, is described. For this world-wide subfamily is only the second species discovered from a cave.
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