Species Enaphalodes rufulus - Red Oak Borer

15-28 mm

Similar to other Enaphalodes, but integument ("skin", i.e., body covering under pubescence) reddish-brown. Covered with dense golden hairs. Pronotum has no lateral spines, has two small tubercles on each side of median line and a raised area behind in center. Elytra have prominent humeri ("shoulders"). Each elytron has two short spines, i.e., is bidentate, at apex (rear end).

Eastern North America: Quebec south to Florida, west to Texas, Minnesota.

Deciduous forests

May-October (Northeast). June-August (North Carolina). July-August (Kansas)

Adults reported to take liquids, such as water, sap, but not to feed on foliage, twigs.

Two-year life cycle. Eggs are laid beneath the scales of the bark on living oak (or sometimes maple) trees. Larvae feed beneath the bark for the first year, then migrate to heartwood for second year. They overwinter as larvae and pupate in spring, emerge in spring and summer. Can be abundant enough to cause substantial damage at times. Adults come to lights.

Other Enaphelodes, also similar genera: Anelaphus, Goes.

Yanega p. 49, fig. 152, plate 13 (1)

Dillon, p. 586, plate LVIII--Romaleum rufulum (2)

Salsbury, p. 220--photo (3)

Brimley, p. 211--Romaleum rufulum (4)

Beal, p. 70--description (5)

Baker, p. 180, fig. 56 (6)

Forestry Images

Beetles of Florida --gives range

Florida Cerambycidae