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Species Trirhabda bacharidis - Groundselbush Beetle

Coleoptera - Trirhabda bacharidis Lady and the Larvae - Trirhabda bacharidis Unknown - Trirhabda bacharidis BG2923 E7775 - Trirhabda bacharidis unknown beetle - Trirhabda bacharidis Groundselbush Beetle - Trirhabda bacharidis Trirhabda bacharidis Chrysomelidae - Trirhabda bacharidis
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 (Longhorn and Leaf Beetles)
Family Chrysomelidae (Leaf Beetles)
Subfamily Galerucinae (Skeletonizing Leaf Beetles and Flea Beetles)
Tribe Galerucini
No Taxon (Section Coelomerites)
Genus Trirhabda
Species bacharidis (Groundselbush Beetle)
Other Common Names
Groundsel Bush Leaf Beetle (GBLB)
Synonyms and other taxonomic changes
Trirhabda bacharidis (Weber)
Orig. Comb: Galleruca bacharidis Weber 1801
Explanation of Names
species named after the host, Baccharis
7-12 mm(1)
Note tapering elytral stripes
coastal eastern NA (QC-FL-TX) - Map (2)(3)
larvae and adults feed exclusively on leaves of Baccharis spp. (Asteraceae)(4)(5)
Introduced into Australia and Asia to control Baccharis spp.(4)
See Also
Derospidea brevicollis (LeConte) - Note non-tapering elytral stripes
- Range: e. US, but mostly TX
Det. M. A. Quinn, 2015
Print References
Boldt P.E., Robbins T.O. (1987) Phytophagous and pollinating insect fauna of Baccharis neglecta (Compositae) in Texas. Envir. Entomol. 16: 887–895.
Boldt P.E., Robbins T.O. (1990. Phytophagous and flower-visiting insect fauna of Baccharis salicifolia (Asteraceae) in the southwestern United States and Northern Mexico. Envir. Entomol. 19: 515-523.
Boldt P.E., Robbins T.O. (1994) Phytophagous insect faunas of Baccharis salicina, B. pteronioides, and B. bigelovii (Asteraceae) in the southwestern United States and northern Mexico. Envir. Entomol. 23: 47-57.
Boldt P.E., Woods W., Robbins T.O. (1988) Phytophagous insect fauna of Baccharis sarothroides Gray (Asteraceae) in Arizona and New Mexico. Proc. Ent. Soc. Wash. 90: 207-215.
Palmer W.A. (1987) The phytophagous insect fauna associated with Baccharis halimifolia L. and B. neglecta Britton in Texas, Louisiana, and northern Mexico. Proc. Ent. Soc. Wash. 89: 185-199.
Palmer W.A., Bennett F.D. (1988) The phytophagous insect fauna associated with Baccharis halimifolia L. in the eastern United States. Proc. Ent. Soc. Wash. 90: 216-228.
Palmer W.A., Haseler W.A. (1992) The host specificity and biology of Trirhabda bacharidis (Weber) (Coleoptera: Chrysomelidae), a species introduced into Australia for the biological control of Baccharis halimifolia L. Coleopterists Bulletin 46: 61-66. (Full text)
Works Cited
1.A Synopsis of the North American Galerucinae (Coleoptera: Chrysomelidae)
John A. Wilcox. 1965. New York State Museum and Science Service.
2.Catalog of Leaf Beetles of America North of Mexico
Ed Riley, Shawn Clark, and Terry Seeno. 2003. Coleopterists Society.
3.Global Biodiversity Information Facility (GBIF)
4.Host plants of leaf beetle species occurring in the United States and Canada
Clark et al. 2004. Coleopterists Society, Special Publication no. 2, 476 pp.
5.Phylogeny and host plant association in the leaf beetle genus Trirhabda LeConte (Coleoptera: Chrysomelidae)
Swigoňová Z., Kjer K.M. 2004. Mol. Phylogenet. Evol. 32: 358-374.