Eupetinus

Sharp 1908 

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The various species of Eupetinus superficially resemble each other and there is often a relatively large amount of variation within species, making them very difficult to distinguish. They range from 2.8-5.0 mm in length, with the majority being about 4 mm. They are often abundant and can be found from dry mesic forest to extremely wet forest. They also appear to be the most tolerant of disturbance in the native forest, with some species being found abundantly on introduced vegetation.

They can be found in all situations typical of the endemic Hawaiian sap beetles. Many are found on decaying leaves and stems, they can also be found in fresh flowers, chewing fresh leaves, in decaying fruit, and consuming fern spores.