Sap beetle


Adult sap beetles are variable in size, 0.9 to 15 mm in length. The antennae are usually eleven segmented with the distal three segments forming a club which makes them easily recognized. The clubbed portion, however, is quite variable within species, being quite distinct or only slightly developed (Parsons 1943). Antennal groves are usually present. The elytra or wing covers are entire sometimes shortened to expose two or three abdominal segments. The dorsal surface usually has uniform punctation but sometimes punctures are of different sizes. The prosternum has a process produced between the front coxae. The tarsal formula is usually 5-5-5 and tarsi are five segmented. The first tarsal segment is of normal size, the fourth very small and the fifth the longest.

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