Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

Discussion of 2018 gathering

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington

TaxonomyBrowse
Info
ImagesLinksBooksData

Genus Exema

Exema mormona Karren - Exema mormona Exema? - Exema canadensis Chrysomelidae, egg case - Exema Exema Exema Warty Leaf Beetle  - Exema Fulcidacini - Exema warty leaf beetle Exema sp.? - Exema
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 Cryptocephalinae (Case-bearing Leaf Beetles)
Tribe Fulcidacini (Warty Leaf Beetles)
Genus Exema
Explanation of Names
Exema Lacordaire 1848
Numbers
9 spp. in our area(1)(2):
byersi Karren (NY-VA-AL to MI-KS-TX-AZ)
canadensis Pierce
conspersa (Mannerheim)
deserti Pierce sw. US (CO-NV to TX-CA) into Mexico
dispar Lacordaire
elliptica Karren
gibber (Fabricius) s. US (PA-FL-TX); often on oaks
mormona Karren
neglecta Blatchley
Size
2-3.5 mm (2)
Identification
Resemble caterpillar/mouse droppings.
Key to spp. in Karren (1966) (2)
Range
across N. Amer. (1)
Food
Most of our spp. associated with Asteraceae (1)
Works Cited
1.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.
2.A revision of the genus Exema of America, north of Mexico (Chrysomelidae, Coleoptera)
J.B. Karren. 1966. University of Kansas Science Bulletin, 46:647-695.