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Genus Exema

Casebearer - Exema Warty Leaf Beetle - Exema Exema elliptica Karren - Exema elliptica Exema dispar Lacordaire - Exema dispar Warty Leaf Beetle - Exema dispar Warty leaf beetles - Exema Warty Leaf Beetle - Exema Exema canadensis
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.