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TaxonomyBrowse
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Species Trirhabda flavolimbata

Trirhabda flavolimbata? - Trirhabda flavolimbata Green larva on coyote brush (3 of 3) - Trirhabda flavolimbata leaf beetle - Trirhabda flavolimbata - female Trirhabda flavolimbata feeding on B. douglasii - Trirhabda flavolimbata Green beetle - Trirhabda flavolimbata Trirhabda sp. - Trirhabda flavolimbata Green and yellow beetle - Trirhabda flavolimbata Seen in Daly City, California on native plant (bush) with many
Classification
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 Chrysomelidae (Leaf Beetles)
Subfamily Galerucinae (Skeletonizing Leaf Beetles and Flea Beetles)
Tribe Galerucini
No Taxon (Section Coelomerites)
Genus Trirhabda
Species flavolimbata (Trirhabda flavolimbata)
Synonyms and other taxonomic changes
Galleruca flavolimbata Mannerheim, 1843   [Orig. Comb., description at BHL]
Trirhabda flavolimbata LeConte, 1865   [New Comb., description at BHL]
Explanation of Names
flavolimbata - Latin for 'yellow edged' (1)
Size
5-8mm (2)
Range
Coastal CA -- San Francisco region (3)
Food
The primary host of T. flavolimbata is clearly Baccharis pilularis. Palmer (1986) noted that:
"Although T. flavolimbata has been recorded on a number of host plants other than B. pilularis, such as Aster, Solidago, Artemesia, Senecio and Eriodictyon (Essig 1929; Blake 1931; Tilden 1953), the citations were all prior to the taxonomic revision of the genus by Hogue(4) (1970) who considered B. pilularis to be the only host."
However, T. flavolimbata has been photographed feeding on B. douglasii, and seen and collected on Aster chilensis (cf. pg. 152 of Palmer...and the last paragraph of this BG post).
Life Cycle
See: Tilden (1953).
See Also
T. labrata is a "look-alike" which even shares the same host plant: Baccharis pilularis.

There are also 4 other CA species of Trirhabda that might easily be mistaken for T. flavolimbata. They are:
  T. luteocincta and T. sericotrachlya...which share Artemisia californica as their host plant; and
  T. confusa and T. manisi...which share Ericameria (Chrysothamnus) nauseosa as their host plant.

The above species occur are principally Californian...to the east of the Sierra Nevada-Cascades mountain ranges both T. pubicollis and (the non-vittate form of) T. convergens can also be mistaken for T. flavolimbata...and there may be others!
Print References
Tilden, J.W. 1953. Biological Notes on Trirhabda flavolimbata (Chrysomelidae). The Coleopterists Bulletin, 7(3): 20-23. (JSTOR).
Palmer, W.A. 1986. The Host Range of Trirhabda flavolimbata (Mannerheim) (Coleoptera: Chrysomelidae) and Its Suitability as a Biological Control Agent for Baccharis Spp. (Asteraceae: Astereae). The Coleopterists Bulletin 40(2): 149-153. (JSTOR)
Internet References
Type specimen images from the Museum of Comparative Zoology, Harvard University. (Somewhat discolored...more than 150 yrs old!)
Works Cited
1.Dictionary of Word Roots and Combining Forms
Donald J. Borror. 1960. Mayfield Publishing Company.
2.A Synopsis of the North American Galerucinae (Coleoptera: Chrysomelidae)
John A. Wilcox. 1965. New York State Museum and Science Service.
3.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.
4.Biosystematics of the genus Trirhabda LeConte of America north of Mexico (Chrysomelidae: Coleoptera)
Steve Munroe Hogue. 1970. Ph.D. dissertation, University of Idaho, 212 pp.