Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Species Trachyderes mandibularis

Long-jawed Longhorn Beetle - Trachyderes mandibularis - male - female Trachyderes mandibularis - male Trachyderes mandibularis - female Trachyderes mandibularis - male Trachyderes? - Trachyderes mandibularis - female Long-jawed Longhorns? - Trachyderes mandibularis Long-jawed Longhorns? - Trachyderes mandibularis Trachideres mandibularis  - Trachyderes mandibularis
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles)
Superfamily Chrysomeloidea (Long-horned and Leaf Beetles)
Family Cerambycidae (Longhorned Beetles)
Subfamily Cerambycinae
Tribe Trachyderini
Genus Trachyderes
Species mandibularis (Trachyderes mandibularis)
Other Common Names
Long-jawed Longhorn Beetle
Horse Bean Longhorn Beetle
Synonyms and other taxonomic changes
Dendrobius
Dendrobias
Explanation of Names
Males have particularly long mandibles.
Numbers
Two other species in this genus, but only mandibularis occurs in the U.S.
Size
17-32mm
Range
southwestern U.S. (TX-CA), south to Honduras, southern Florida
Season
March-October; most specimens in the Texas A&M Insect Collection from July through September.
Food
Celtis sp. - Hackberry
Fig - Ficus carica
Citrus
Print References
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.