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SCIRTIDAE
Author: John F. Lawrence, 2001. |
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Suborder Polyphaga, Series Scirtiformia, Superfamily Scirtoidea. |
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Antenae with 11 segments, filiform. Antennal insertions exposed. Visible portion of procoxa transverse to projecting bellow prosternum with the trochantin at least partly exposed. Procoxal cavity externally open and internally open. Mesocoxae contigous, with mesocoxal cavity laterally open. Tarsal formula 5-5-5. Numberof ventrites 5 with 0 to 2 connate. Body length 1.5-4.5 mm. Oblong to ovate, somewhat flattened, glabrous or pubescent. Head declined. Prothorax short. Hind femora often greatly enlarged for jumping. Tarsi with lobe on 4. |
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Scirtidae (formerly known as Helodidae) is a large group showing the greatest diversity in temperate regions. The small number of Central American taxa are small beetles (usually less than 4 mm) with a short prothorax, strongly declined head, filiform to serrate antennae, and lobed 4th tarsomeres. Species of Scirtes (right) have enlarged metafemora, and are capable of jumping. |
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Cyphon, Ora, Prionocyphon, Prionoscirtes, Scirtes. |
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Scirtes |
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