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Genus Celina

dytiscid - Celina hubbelli Dytiscidae - Celina imitatrix Celina occidentalis Young - Celina occidentalis - male beetle - Celina angustata Celina  - Celina hubbelli BioBlitz Bug 148 - Celina orange beetle - Celina hubbelli Dytiscid of sorts... - Celina hubbelli
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Adephaga (Ground and Water Beetles)
Family Dytiscidae (Predaceous Diving Beetles)
Subfamily Hydroporinae
Genus Celina
Explanation of Names
Celina Aubé 1837
Numbers
9 spp. in our area(1) (C. hubbelli reaches Canada(2)), dozens in the Neotropics
Size
2.8-6.8 mm(3)
Identification
Adult: apex of elytra and abdomen has sharp spine (a distinctive feature)
Range
in our area, e. US (NY-WI to FL-TX) and adjacent Canada(3)(4); most diverse in the Neotropics(5)
Habitat
shallow pools and ponds with cattails (Typha spp.)
Remarks
spines at the apex of the elytra and abdomen are used to pierce cattails and obtain oxygen without swimming to the surface (Hilsenhoff 1994)
Print References
Hilsenhoff W.L. (1994) Dytiscidae and Noteridae of Wisconsin (Coleoptera). V. Distribution, habitat, life cycle, and identification of Hydroporinae, except Hydroporus Clairville sensu lato. Great Lakes Entomologist 26: 275-295.
Works Cited
1.American Beetles, Volume I: Archostemata, Myxophaga, Adephaga, Polyphaga: Staphyliniformia
Arnett, R.H., Jr., and M. C. Thomas. (eds.). 2000. CRC Press LLC, Boca Raton, FL.
2.Bousquet Y., ed. (1991) Checklist of the beetles of Canada and Alaska
3.Predaceous Diving Beetles (Coleoptera: Dytiscidae) of the Nearctic Region, with emphasis on the fauna of Canada and Alaska
D.J. Larson, Y. Alarie, and R.E. Roughley. 2001. NRC 43253.
4. A distributional checklist of the beetles (Coleoptera) of Florida.
Peck & Thomas. 1998. Florida Department of Agriculture and Consumer Services, Gainesville. 180 pp.
5.The Water Beetles of Florida
Epler J.H. 2010. Florida Department of Environmental Protection. Tallahassee. 414 pp.