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Genus Microrhopala

blue-reflexed hispinid under flourescent light - Microrhopala excavata Leaf Beetle - Microrhopala excavata Microrhopala rubrolineata signaticollis - Microrhopala rubrolineata Microrhopala vittata ? - Microrhopala vittata Unknown beetle feeding on Silphium intergrifolium plant: Possbly Chrysomelinae? - Microrhopala vittata Beetle - Microrhopala vittata Microrhopala vittata Cassidinae, sign of Goldenrod Leaf Miner, on leaf tip of Compass plant - Microrhopala vittata
Classification
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 Cassidinae (Tortoise Beetles and the Hispines)
Tribe Chalepini
Genus Microrhopala
Synonyms and other taxonomic changes
revised in (1)
Explanation of Names
Microrhopala Chevrolat in Dejean 1836
'small club'
Numbers
9 spp. in our area, 18 total(2)
Identification
Antenna appearing 8-segmented due to fusion of terminal antennomeres; antenna moderately long to long, filiform to clavate; fore tibia not flattened, broadest subapically, externally without distinct carina; antenna gradually enlarged distally; antennomere 3 shorter than 1 and 2 combined; elytra usually conjointly rounded at apex; vertex of head with sulci variably developed, lateral sulcus when present distant from eye; elytral margins gradually and evenly curved at apex without apical foliaceous expansion or large spines.
Range
across Canada and US south to Columbia(3)
Food
Associated with Asteraceae(3)
Works Cited
1.A revision of the genus Microrhopala (Coleoptera: Chrysomelidae) in America north of Mexico
Shawn M. Clark. 1983. Great Basin Naturalist, Vol 43, No 4, pp. 597-618.
2.Catalog of the hispines of the World
3.American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea
Arnett, R.H., Jr., M. C. Thomas, P. E. Skelley and J. H. Frank. (eds.). 2002. CRC Press LLC, Boca Raton, FL.