Acilius (beetle)

Acilius is a holarctic genus of diving beetles in the family Dytiscidae and typically has a life cycle that is univoltine.

Despite the prevalence of some species, one species, A. duvergeri, is listed as vulnerable on the IUCN Red List.

Species

The genus Acilius contains the following 13 extant species in 2 subgenera:<br /> Subgenus Acilius:

• Acilius abbreviatus <small>Aubé, 1838</small>
• Acilius athabascae <small>Larson, 1975</small>
• Acilius canaliculatus <small>(Nicolai, 1822)</small>
• Acilius confusus <small>Bergsten, 2006</small>
• Acilius fraternus <small>(Harris, 1828)</small>
• Acilius japonicus <small>Brinck, 1939</small>
• Acilius kishii <small>Nakane, 1963</small>
• Acilius mediatus <small>(Say, 1823)</small>
• Acilius semisulcatus <small>Aubé, 1838</small>
• Acilius sinensis <small>Peschet, 1915</small>
• Acilius sulcatus <small>(Linnaeus, 1758)</small>
• Acilius sylvanus <small>Hilsenhoff, 1975</small>

Subgenus Homoelytrus

• Acilius duvergeri <small>Gobert, 1874</small>

Extinct species

These three extinct species are known only from fossils:

• †Acilius florissantensis <small>Wickham, 1909</small>
• †Acilius oeningensis <small>(Heer, 1847)</small>
• †Acilius praesulcatus <small>Lomnicki, 1894</small>

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References