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NOTERIDAE
Author: John F. Lawrence, 2001. |
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Suborder Adephaga |
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Antenae with 11 segments, filiform. Antennal insertions concealed. Visible portion of procoxa globular with the trochantin concealed. Procoxal cavity externally open and internally closed. Mesocoxae separated by less than 0.4 X coxal width to 1 coxal width, with mesocoxal cavity laterally open. Tarsal formula 5-5-5. Numberof ventrites 6 with 3 connate. Body length 1-6.3 mm. Elliptical, boat-shaped, very similar to Dytiscidae. Metacoxal plates well-developed mesally (unlike Dytiscidae). |
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The family Noteridae have most of the features of dytiscids, but differ mainly in the shape of the metacoxae, which have longitudinal plates concealing the bases of the trochanters. |
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Hydrocanthus, Mesonoterus, Notomicrus, Suphisellus. |
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Metacoxal plate |
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