Texas Beetle Information

Return to Texas Entomology - Compiled by Mike Quinn

Long-jawed Longhorn Beetle

Trachyderes m. mandibularis Dupont in Audinet-Serville 1834

Family Cerambycidae, Subfamily Cerambycinae, Tribe Trachyderini

Unit Tray of Trachyderes mandibularis

(Female, males have much expanded jaws)

Roy Kizer Golf Course, Austin, Travis Co., TX
July 05, 2006 (Scott Young)

Texas County Records for Trachyderes mandibularis

County Records per Ed Riley, 2006

Range: southwestern U.S., south to Honduras, southern Florida

Flight Period: March-November, most common from July through September based on specimens in the TAMUIC.

Hosts:

Celtis sp. - Hackberry

Ficus sp. - Ficus

Tamarix gallica - French tamarisk

Biology: Adults are active during the day and most are found near wounded trees that are oozing sap.

Similar Species: There are 16 species of Trachyderes (in two subgenera), but only T. m. mandibularis reaches the United States.

Photographs:

Unit Tray of Trachyderes mandibularis - Texas A&M University Insect Collection

Trachyderes mandibularis - Robert Potts © California Academy of Sciences

Trachyderes mandibularis - Bob Jensen

Trachyderes (Dendrobias) mandibularis - Florida State Collection of Arthropods

Taxonomy: (per: Monné & Hovore 2005)

Trachyderes (Dendrobias) Dupont in Audinet-Serville, 1834: 41
Dendrobius; LeConte, 1858:40

Weblink:

A Neotropical Longhorn Beetle (Coleoptera: Cerambycidae) New to the Mainland of Florida - FL Dept. Ag.

Etymology:

trachyte (G). Roughness
der, -o (G). The neck

References:

Arnett, R.H., Jr., M.C. Thomas, P. E. Skelley & J.H. Frank. (editors). 2002. American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea. CRC Press. 861 pp.

Borror, D.J. 1960. Dictionary of Word Roots and Combining Forms. National Press Books, Palo Alto. v + 134 pp.

Burke, H.R., J.A. Jackman, & M. Rose. 1994. Insects Associated with Woody Ornamental Plants. EEE - 00019. Texas A&M University, College Station. pp 1-166.

Goldsmith, S.K. 1985. Male Dimorphism in Dendrobias mandibularis Audinet-Serville (Coleoptera: Cerambycidae). Journal of the Kansas Entomological Society 58:534-538.

Goldsmith, S.K. 1987. The Mating System and Alternative Reproductive Behaviors of Dendrobias mandibularis (Coleoptera: Cerambycidae). Behavioral Ecology and Sociobiology 20:111-115.

Goldsmith, S. K. and J. Alcock. 1993. The mating chances of small males of the cerambycid beetle Trachyderes mandibularis differ in different environments (Coleoptera: Cerambycidae). Journal of Insect Behavior 6(3): 351-360. (Abstract)

Hovore, F.T., R.L. Penrose & R.W. Neck 1987. The Cerambycidae, or longhorned beetles, of southern Texas: a faunal survey. Proceedings of the California Academy of Sciences, 44(13): 283-344, 20 figs.

Hudepohl, K.E. 1985. Revision der Trachyderini (Coleoptera: Cerambycidae, Cerambycinae). Entomol. Arb. Mus. George Frey, 33/34:1-167.

Monné, M.A. & F.T. Hovore. 2005. Electronic Checklist of the Cerambycidae of the Western Hemisphere. 393 pp.

White, R.E. 1983. A Field Guide to the Beetles of North America. Houghton Mifflin Company, Boston. 368 pp.