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HALIPLIDAE
Author: John F. Lawrence, 2001. |
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Suborder Adephaga |
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Antenae with 11 segments, filiform. Antennal insertions exposed. Visible portion of procoxa globular with the trochantin concealed. Procoxal cavity externally open and internally closed. Mesocoxae separated by more than 1 coxal width, with mesocoxal cavity laterally open. Tarsal formula 5-5-5. Numberof ventrites 6 with 3 connate. Body length 2-4 mm. Elliptical, glabrous. Very large metacoxal plates concealing legs. Haliplus. |
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The Haliplidae is another easily identified family. They are small beetles with the characteristics of all aquatic Adephaga, namely the short, glabrous antennae, boat-shaped body and swimming hairs on the legs. They are easily distinguished from other Adephaga by the enormous hind coxal plates (second figure) which conceal much of the hind legs. |
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Haliplus. |
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