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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Cucujiformia » Longhorn and Leaf Beetles (Chrysomeloidea) » Leaf Beetles (Chrysomelidae) » Case-bearing Leaf Beetles (Cryptocephalinae) » Warty Leaf Beetles (Fulcidacini) » Exema » Exema canadensis

Species Exema canadensis

Chrysomelidae, lateral - Exema canadensis

Chrysomelidae Neochlamisus gibbous - Warty leaf beetle? - Exema canadensis

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 Cryptocephalinae (Case-bearing Leaf Beetles)

Tribe Fulcidacini (Warty Leaf Beetles)

Genus Exema

Species canadensis (Exema canadensis)

Explanation of Names

Exema canadensis Pierce, 1940

Numbers

9 spp. n. of Mex. (1)

Size

2.4 to 2.7 mm (2)

Identification

Emargination of eyes black, not yellow. (2)

"Shiny black with yellowish markings; male with antennal scape and longitudinal bar next to each eye transversely connected to central spot that merges with triangular frontal spot, yellow; frontal slope black; all tibiae with subbasal and subapical yellow rings; front femora with basal yellow ring, female similar with facial yellow markings reduced to spots; pronotum with large elliptical punctures, largest posteriorly; elytra coarsely punctate with prominent umbone and large tubercules." (2)

Range

e NA (TX-FL-NS-MB) - Map (1)(3)

Habitat

Beaten and swept from species of Solidago, Corylus, Salix, Cornus, elm, chokecherry, blackberry, ragweed, and others. (2)

Print References

Karren, J. 1966. A revision of the genus Exema of America north of Mexico (Chrysomelidae, Coleoptera). University of Kansas Science Bulletin 46: 647–695.(4)

Pierce, W.D. 1940. The fauna and flora of the El Segundo sand dunes. II. The dune case-bearer beetles of the genus Exema with review of the genus. Bulletin, Southern California Academy of Sciences 39: 6-27.

Works Cited

1.	Catalog of Leaf Beetles of America North of Mexico Ed Riley, Shawn Clark, and Terry Seeno. 2003. Coleopterists Society.

2.	The Beetles of Northeastern North America, Vol. 1 and 2. Downie, N.M., and R.H. Arnett. 1996. The Sandhill Crane Press, Gainesville, FL.

3.	Global Biodiversity Information Facility (GBIF)

4.	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.

Contributed by Cotinis on 14 October, 2006 - 6:55pm
Additional contributions by Bbarnd, Mike Quinn, Ben Coulter
Last updated 10 August, 2023 - 4:08pm

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