Silken Fungus Beetle

fungus-infested wood. They are predaceous on wood-boring insects and live in the tunnels of these insects. A few species live in ant nests.

DRY-FUNGUS BEETLES Family Sphindidae Not illus.

Identification: Broadly cylindrical, pronotum broad and distinctly convex, head not or only barely visible dorsally. Brownish to black; pubescence sparse, short, suberect. Antennal club 3-segmented. Tarsi 5-5-4. 1.5-3.0 mm.

Sphindids are found in dry fungi and in debris from decaying logs and stumps. They are often difficult to see because of their small size and protective coloration. The 6 U.S. species are relatively rare.

MURMIDIID BEETLES Family Murmidiidae Not illus.

Identification: Small, oval, somewhat flattened. Antennae clubbed, club usually received in cavity of prothorax. Coxae widely separated. Legs retractile. Tarsi 4-4-4. 1st abdominal segment considerably longer than others. 1-2 mm.

The 5 N. American species are relatively rare, and little is known of their habits; they are probably predaceous.

MONOMMID BEETLES Family Monommidae Not illus. Identification: Shape distinctive: elongate-oval, convex dorsally, flat ventrally. Appendages retractile. Black to brownish. Antennal club 2- or 3-segmented, fitting into grooves on underside of prothorax. Tarsi 5-5-4. 5-12 mm.

Monommids occur on foliage, under rotten wood, and in debris. Our 5 species are in the South, from Florida to s. California. They are not common. Larvae live under rotten wood or bore in the roots of agave.


Family Erotylidae

Identification: Elongate to broadly oval. Black, shiny, lacking pubescence, often marked with red, orange, or yellow. Antennal club 3-segmented. Tarsi 5-5-5,4th segment often small. 3-20 mm.

Erotylids are usually found on fungi or in rotten wood; some are fairly common. Adults hibernate under bark, often in groups. Larvae occur in fleshy fungi or in decaying wood; some feed in fungus-infested stored products. Some erotylids are attractively patterned with red or orange and black.

FLAT BARK BEETLES Family Cucujidae See also PL 6 Identification: Body often greatly flattened; elongate, usually narrow, parallel-sided. Brown, black, or reddish. Antennae threadlike, sometimes clubbed. Tarsi 5-5-5, sometimes appearing 5-5-4. 2.0-13.5 mm.

Most cucujids can be recognized by their greatly flattened body; a few are not so flattened. They are common under loose

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