Woundedtree Beetlesnot illus

Family Nosodendridae

Identification: Similar to Byrrhidae (p. 173), but head visible dorsally and FW with rows of short hair tufts. Body oval, convex, black. Antennae with a 3-segmented club. Tibiae broad, with spines. Tarsi 5-5-5. 5-6 mm.

Only 2 species of nosodendrids occur in the U.S., 1 from the Northeast west to Kansas, the other in California; both are quite rare. They are found under bark or in the wounds of trees, where they probably feed on fly larvae. Larvae live in hollow stumps and tree holes.

CHELONARIID BEETLES Family Chelonariidae Not illus. Identification: Elongate-oval. Head withdrawn into prothorax and concealed from above; strongly contractile. FW black, with patches of dense white pubescence. Pronotum reddish. Antennae threadlike. Tarsi 5-5-5. 5-7 mm.

This family contains a single rare species, Chelonarium lecontei Thomson, which occurs in N. Carolina and Florida. Adults are found on foliage, and larvae are aquatic.

Superfamily Cucujoidea

This superfamily serves as a sort of dumping ground for families that cannot be placed elsewhere. The included families have little in common, in either morphology or habits.

TOOTH-NECKED FUNGUS BEETLES Family Derodontidae Identification: Form of pronotum often distinctive: lateral margins strongly toothed or broadly flattened and bent upward. Brownish, often mottled. Head with a pair of ocelli. Antennae with an elongate 3-segmented club. FW with rows of punctures. Tarsi 5-5-5 or 4-4-4. 3-6 mm.

The 6 N. American species of derodontids are relatively rare. They occur in shelf fungi, under the bark of willow and tulip trees, and in slime molds. When located, they are sometimes found in large numbers.

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