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

Beetle - Trirhabda geminata Leaf beetle - Trirhabda geminata Leaf beetle with host Brittle Bush  - Trirhabda geminata unknown  beetle - Trirhabda geminata Blister Beetle? - Trirhabda geminata Leaf Beetle on Encelia - Trirhabda geminata Mating Beetles - Trirhabda geminata - male - female Trirhabda on Brittle Bush - Trirhabda geminata
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga
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 geminata (Trirhabda geminata)
Explanation of Names
Trirhabda geminata Horn 1893
5.0‒7.0 mm(1)
sw US (s.CA to w.TX, CO to NV) - Map (1)(2), most records s.CA to AZ
Dry chaparral, desert scrub, and coastal sage scrub
Larval hosts: Encelia spp. (Asteraceae)
Print References
Horn, G.H. 1893. The Galerucini of boreal America. Transactions of the American Entomological Society 20: 57–136.
Sorensen M.A., Bethke J.A., Redak R.A. (2010) Potential host plants of Trirhabda geminata (Coleoptera: Chrysomelidae): impacts on survival, development, and feeding. Env. Entomol. 39: 159‒163. Abstract
Internet References
Lectotype - MCZ, Harvard