Urophorus humeralis, known generally as the pineapple beetle or yellow-shouldered souring beetle, is a species of sap-feeding beetle in the family Nitidulidae.

It is found in Africa, North America, Oceania, Southern Asia, Europe, and temperate Asia.

[1][2][3] The species is known to be a vector of Ceratocystis paradoxa in sugarcane in Hawaii, and the beetles are attracted to diseased sugarcane more than healthy sugarcane, with Ceratocystis paradoxa being more nutritious to U. humeralis larvae.

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