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

Family Chrysomelidae - Leaf Beetles

Tortoise beetle - Deloyala lecontei Casebearer imago - Exema Tortoise Beetle 1 - Deloyala lecontei Leaf Beetle - Anomoea flavokansiensis Cobalt Milkweed Beetle - Chrysochus cobaltinus - male - female Red and black beetle - Labidomera clivicollis Palestriped Flea Beetle - Systena blanda Unknown caterpillar? - Trirhabda
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles)
Superfamily Chrysomeloidea (Long-horned and Leaf Beetles)
Family Chrysomelidae (Leaf Beetles)
Synonyms and other taxonomic changes
Alticinae - + Now a tribe (Alticini) of Galerucinae
Bruchinae - + Now a subfamily of Chrysomelidae, formerly its own family
Chlamisinae - + Now a tribe (Chlamisini) of Cryptocephalinae
Clytrinae - + Now a tribe (Clytini) of Cryptocephalinae
Hispinae - + Now part of the Cassidinae
Numbers
One of the largest beetle families and among the phytophagous (plant-eating) families, Chrysomelids are second in number of species only to the Curculiondiae (or weevils). (1)
As many as 35,000 described species and perhaps up to 60,000 total species. (1)
Presently, there are 195 genera and approximately 1,720 valid species and subspecies (plus 149 Bruchinae species) accepted as occurring in North America north of Mexico. (1)
Range
Recorded from all areas of the world except the antarctic and most of the high arctic. (1)
Habitat
Chrysomelids are phytophagous and are among the most diverse and conspicuous insect families on plants. The adults feed on living plant material, usually consuming leaves or sometimes various flower parts including pollen. Many chrysomelid larvae feed on leaves, but a great number are subterranean, attacking roots and underground stems. (1)
Season
Most Nearctic species are probably univoltine, having one generation per year. (1)
Food
Most species are fairly specific in their food plant preferences, being either monophagous or more commonly oligophagous, consuming a few closely related plants. (1)
Life Cycle
It is probable that most Nearctic species overwinter as adults. (1)

Larvae have a wide variety of life histories. A good summary is in this article at Canadian National Collection of Insects.
TBA
Remarks
A fair number of leaf beetles are of some economic importance. Others have proven to be beneficial as agents for the biological control of invasive weeds in various areas of the world. (1)
Print References
Clark, S.M., D.G. LeDoux, T.N. Seeno, E.G. Riley, A.J. Gilbert & J.M. Sullivan. 2004. Host plants of leaf beetle species occurring in the United States and Canada (Coleoptera: Megalopodidae, Orsodacnidae, Chrysomelidae exclusive of Bruchinae). Coleopterists Society, Special Publication no. 2, 476 pp. (2)
Riley, E.G., S.M. Clark, and T.N. Seeno. 2003. Catalog of the leaf beetles of America north of Mexico (Coleoptera: Megalopodidae, Orsodacnidae and Chrysomelidae, excluding Bruchinae). Coleopterists Society, Special Publication no. 1, 290 pp. (3)
American Beetles, Vol. 2, Chapter 121 [Bruchids]
Riley, E.G., S.M. Clark, R.W. Flowers, and A.J. Gilbert. 2002. Family 124. Chrysomelidae Latreille 1802, pp. 617-691 in Arnett, et al., American Beetles vol. 2, Polyphaga: Scarabaeoidea through Curculionoidea. CRC Press, xiv + 861 pp. (1)
Ciegler, J. 2007. Leaf and Seed Beetles of South Carolina. Clemson University (4)
Works Cited
1.American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea
By Arnett, R.H., Jr., M. C. Thomas, P. E. Skelley and J. H. Frank. (eds.)
2.Host Plants of Leaf Beetle Species Occuring in the United States and Canada
By Shawn M. Clark, Douglas G. LeDoux, Terry N. Seeno, Edward G. Riley, Arthur L. Gilbert, and James M. Sullivan. 2004.
3.Catalog of Leaf Beetles of America North of Mexico
By Ed Riley, Shawn Clark, and Terry Seeno
4.Leaf and Seed Beetles of South Carolina
By Janet Ciegler