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ADERIDAE
Author: John F. Lawrence, 2001. |
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Suborder Polyphaga, Series Cucujiformia, Superfamily Tenebrionoidea. |
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Antenae with 11 segments, filiform or clavate or flabellate. Antennal insertions exposed. Visible portion of procoxa projecting bellow prosternum with the trochantin concealed. Procoxal cavity externally open and internally open. Mesocoxae separated by less than 0.4 X coxal width, with mesocoxal cavity laterally open. Tarsal formula 5-5-4 or 5-5-4 but tarsomere 4 reduced and concealed at base of lobe on 3 on legs 1 and 2 and tarsomere 3 reduced and concealed at base of lobe on 2 on leg 3. Number of ventrites 5 with 2 connate. Body length 1-4 mm. Oblong to elongate but usually with prothorax much narrower than elytra, pubescent. Head abruptly constricted posteriorly forming narrow neck. Eyes always distinctly emarginate. Antepenultimate tarsomere lobed, and penultimate reduced. Abdomen sometimes appearing to have only 4 ventrites. Males often with pubescent areas on metafemora. |
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Aderidae resemble small Anthicidae but actually differ in several ways: (1) the procoxal cavities are internally open; (2) the antepenultimate tarsomere is lobed and the penultimate reduced (in anthicids the penultimate is lobed); (3) and the first 2 ventrites are solidly fused, sometimes with the suture between them being partly or completely effaced. Aderids are almost always less than 3.5 mm long. |
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Ariotus, Elonus, Ganascus, Emelinus, Zonantes.... |
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