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Species Oncideres rhodosticta - Mesquite Girdler

Mesquite Girdler - Oncideres rhodosticta - female longhorn - Oncideres rhodosticta Mesquite Girdler  - Oncideres rhodosticta Oncideres rhodosticta? - Oncideres rhodosticta - female Oncideres rhodosticta Bates - Oncideres rhodosticta Oncideres rhrodosticta  ? - Oncideres rhodosticta unidentified Beetle, perhaps Cerambycidae? - Oncideres rhodosticta Cerambycidae - Oncideres rhodosticta
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Cucujiformia)
Superfamily Chrysomeloidea (Long-horned and Leaf Beetles)
Family Cerambycidae (Long-horned Beetles)
Subfamily Lamiinae (Flat-faced Longhorns)
Tribe Onciderini
Genus Oncideres (Twig Girdling Beetles)
Species rhodosticta (Mesquite Girdler)
Explanation of Names
Oncideres rhodosticta Bates 1885
rhodosticta = 'rose-dappled'
12-19 mm(1)
Distinguished from O. cingulata by three black dots on thorax, O. pustulata by much smaller size.

Det. M. A. Quinn, 2017
AZ to sw TX / n. Mex (1)
Twigs of Mesquite, acacia, mimosa, parkinsonia, ebony; Honey Mesquite appears to be the preferred host(1)
Life Cycle
Adults were observed at 1pm on an overcast day in September girdling trees scattered over a broad wash 5 mi SE Portal, AZ. Females were feeding on tender bark out near the tips of freshly girdled branches. They were braced against branchlets or thorns with the legs wrapped around the branch, the head facing outward, with the antennae extended forward. Some females had made as many as 10 egg niches, five on each side of the branch and separated by 5-5.7 cm on a side; others had not yet begun to oviposit. Most of the girdles were 11-12 mm. Males were usually found resting in a pairing position but when separated from, or searching for, the female they ran up and down the branches above the girdle with the antennae extending forward, one on each side of the branch.(2)
widespread and common girdler of mesquite (Prosopis juliflora)(2)
See Also
Oncideres cingulata (Say)
- Range: e US
Det. M. A. Quinn, 2010
Internet References
Texas Entomology - Mike Quinn 2007
Works Cited
1.Guide to insect borers in North American broadleaf trees and shrubs
Solomon, J.D. 1995. USDA Forest Service Agriculture Handbook. 735 pp.
2.A list of Cerambycidae from the Chiricahua Mountain area, Cochise County, Arizona (Coleoptera).
Linsley, E.G., J.N. Knull and M. Statham. 1961. American Museum novitates, 2050: 1-34.