Oncideres quercus Skinner.

Heffern, Daniel J., Vlasak, Josef & Alten, Ronald L., 2018, Larval Host Plant Records, Distributional Records, and Biological Information on North American Cerambycidae (Coleoptera), The Coleopterists Bulletin 72 (4), pp. 739-750 : 749

Oncideres quercus Skinner. New larval host

records.

Females girdle terminal oak branches (about 1 cm in diameter), but, to our knowledge, no specific host plant has been reported. JV reared it from girdled branches of Q. hypoleucoides and Quercus rugosa Née collected from AZ: Santa Cruz Co., Upper Madera Canyon. Girdled and usually detached twigs with leaves still attached are conspicuous in the summer and the fall in the mountains in southern Arizona. At that time, larval feeding has just begun, but the twigs can be collected and the beetles reared with emergence occurring the following year.

Phaea canescens (LeConte) .

Linsley and Chemsak (1995, 1997) erroneously list Alnus as a host plant. Chemsak (1999), in his revision of the genus Phaea Newman , correctly lists Ipomoea leptophylla Torr. (Convolvulaceae) as a host plant. Adults of P. canescens have been collected in numbers in late May to early June on fresh shoots of I. leptophylla from the High Plains area of northern Texas, Oklahoma Panhandle, northeastern New Mexico, southwestern Kansas, and eastern Colorado (TAMU, EGRC, and DJHC). It is closely related to its eastern counterpart, Phaea monostigma (Haldeman) , that breeds in Ipomoea pandurata (L.) G. Mey.

Saperda hornii Joutel. New larval host record.

This species develops in living Salix . Linsley and Chemsak (1997) gave Salix lasiolepsis Benth. as the only specific host plant. JV found it in living Salix scouleriana Barratt ex Hook. from CA: El Dorado Co., Lake Tahoe. Frass extruded by the feeding larvae was conspicuous on the trees. Pupation occurs deep in the wood. The exit tunnel prepared by the larva does not penetrate the bark, thereby leaving a thin layer to be cut by the emerging adult, which leaves a circular emergence hole.