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CERYLONIDAE
Author: John F. Lawrence, 2001. |
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Suborder Polyphaga, Series Cucujiformia, Superfamily Cucujoidea. |
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Antenae with 8 to 11 segments and a 1 or 2 segments club. Antennal insertions exposed. Visible portion of procoxa globular with the trochantin concealed. Procoxal cavity externally open to closed and internally open. Mesocoxae separated by 0.4 to more than 1 coxal width, with mesocoxal cavity laterally closed. Tarsal formula 4-4-4. Number of ventrites 5 without ventrites connate. Body length 0.8-3.1 mm. Broadly ovate to elongate, strongly convex to flattened and glabrous or pubescent. Antennal club compact. Frontoclypeal suture present, except in Ceryloninae. Ceryloninae with reduced and narrow apical maxillary palpomere and crenulate hind margin on ventrite 5. Prothorax with cavities for antennal club in Murmidius and Mychocerus. |
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Cerylonidae is a relatively large and diverse group of small to minute beetles. Some Euxestinae (third figure) are convex and glabrous with large, compact antennal clubs, Ostomopsis (4th) are ovate, strongly setose beetles, resembling some Endomychidae. The Murmidiinae (last figure), may be flattened or convex, but are characterized by the dorsally visible prothoracic cavities which house the antennal club. Ceryloninae (first two figures) which include the most commonly encountered species, are varied in form but lack a frontoclypeal suture, have a unique 5th ventrite with a crenulate edge. |
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Euxestinae: Euxestus, Metacerylon. |
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| Ceryloninae |
Ceryloninae |
Euxestinae |
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| Ostomopsinae |
Murmidiinae |
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