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.

PLEASING FUNGUS BEETLES See also PL 6

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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