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MONOTOMIDAE
Author: John F. Lawrence, 2001. |
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Suborder Polyphaga, Series Cucujiformia, Superfamily Cucujoidea. |
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Antenae with 10 segments and a 1 or 2 segments club. Antennal insertions exposed or concealed. Visible portion of procoxa globular with the trochantin concealed. Procoxal cavity externally closed and internally closed. Mesocoxae separated by 0.4 to 1 coxal width, with mesocoxal cavity laterally open. Tarsal formula 5-5-5 or 5-5-4 in all males or 4-4-4. Number of ventrites 5 without ventrites connate. Body length 1.4-5.3 mm. Elongate, slender, usually somewhat flattened, glabrous or pubescent. Elytra truncate, exposing most of 1 tergite. Head large and protruding in Thione. |
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Monotomidae resemble some Nitidulidae but have only 10-segmented antennae with a 1- or 2-segmented club. The genus Thione (last figure) is very unusual, with an enlarged head and prothorax - they inhabit the gallereies of other wood-boring beetles. |
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Aneurops, Bactridium, Crowsonius, Europs, Monotoma, Thione.... |
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| Monotoma |
Crowsonius |
Thione |
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