Vol. 89,Nos. 2&3,March& AprU1978 95 NOTES ON NORTH AMERICAN CERAMBYCIDAE (COLEOPTERA)^ F.T. Hovore , R.L. Penrose , E.F, Giesbert ABSTRACT: New distributional, bionomic or host plant data is presented for species in the following genera: Callipogonius, Eburia. Elaphidion, Hypexilis, Mecas. Megacyllene. Nesostizocera, Obrium, Piezocera, Ataxia and Lochmaeocles. Characters for the separation of Elaphidion cryptum Linsley and E. irroratum (Linnaeus) are enumerated. Xeranoplium gracile Linsley is placed as a junior synonym of X. tricalloswn (Knull). Heterops dimidiata (Chevrolat) and Eupogonius anmdiconiis Fisher are recorded from North America for the first time. Corrigenda to a previous paper are given. DESCRIPTORS: Cerambycidae, ecology, taxonomy, host plants, distribution, larvae, Arizona, Texas, Florida. In an earlier paper, Hovore and Giesbert (1976) presented new ecological and distributional information for 63 species of Cerambycidae from western North America. The following brief accounts, based primarily upon the authors' recent field observations and collections in southern Arizona, southern Texas and the Florida Keys, are supplemental to that paper. Specimens accumulated during these investigations are in the collections of the authors unless otherwise indicated. Miscellaneous corrigenda to our 1976 paper follow the species accounts. Callipogonius cornutus (Linsley) Linsley and Martin (1933) recorded this cryptically-colored lamiine as "beaten from dead Salix", and later, Linsley (1935), in his revision of the Pogonocherini, stated that Salix was the host, based upon the collection of numerous adults from dead and dying willow branches. We have confirmed Salix as the larval host by rearing numerous specimens from dead willow branches collected in the Sabal Palm Grove Sanctuary near Brownsville, Cameron County, Texas. Larvae tunnel parallel with the grain in the heartwood of small to medium-sized (20 -40 mm dia.) branches. Pupation occurs in an oval cell beneath the bark or in the sapwood. Most individuals apparently require only one year to complete development, although adults continued to emerge in decreasing numbers for three years following branch Accepted for publication: November 28, 1977 ^Placerita Canyon Nature Center, 19152 W. Placerita Canyon Road, Newhall, CA 91321 ^9780 Drake Lane, Beverly HiUs, CA 90210 "^Plant Division, State Department of Agriculture, Salem, OR 97310 ENT. NEWS, 89: 2 & 3: 95-100, March & April 1978