Emmidolium excavatum d’Orchymont (Coleoptera: Hydrophilidae: Sphaeridiinae) confirmed in Africa and the Arabian peninsula
Acta Entomologica Musei Nationalis Pragae 47: 117-122, 2007
Abstract: Emmidolium excavatum Orchymont, 1937 is recorded from the United Arab Emirates
and the Republic of the Congo for the first time. The examined specimens are
compared with the type, their male genitalia are drawn, and a distribution map
and habitus photographs of the species are presented. The systematic position of
Emmidolium Orchymont, 1937 within the Megasternini, its similarity to the
Neotropical species Oosternum sculptum Bruch, 1915, and its atypical
distribution are discussed.
Key words: Coleoptera, Hydrophilidae, Sphaeridiinae, Megasternini, Emmidolium, Oosternum, morphology, taxonomy, Afrotropical and Oriental region, distribution, introduced species.