Pheidole Westwood, 1839 (Hymenoptera, Formicidae) of Madagascar – an introduction and a taxonomic revision of eleven species groups

Pheidole ferruginea sp. nov., head of major worker (A), hypostomal teeth (E), profile of minor worker (I). Pheidole rugocephala sp. nov., head of major worker (B), hypostomal teeth (F), profile of minor worker (J). Pheidole vohemarensis sp. nov., head of major worker (C), hypostomal teeth (G), profile of minor worker (K), dorsal view of petiole of major worker (M). Pheidole manantenensis sp. nov., head of major worker (D), hypostomal teeth (H), profile of minor worker (L), dorsal view of petiole of major worker (N).