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Upcoming Events

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

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

Previous events


Genus Celina

Diver #2 - Celina angustata Diver #3 - Celina hubbelli Celina imitatrix BioBlitz Bug 148 - Celina Small Beetle - Celina Orange-brown predaceous diver - Celina Predaceous Diving Beetle - Celina hubbelli Celina sp? - Celina
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
9 spp. in our area(1) (C. hubbelli reaches Canada(2)), dozens in the Neotropics
2.8-6.8 mm(3)
Adult: apex of elytra and abdomen has sharp spine (a distinctive feature)
keys to spp. in Larson et al. (2001)(3)(4)
e. US (NY-WI to FL-TX) and adjacent Canada(3)(5); most diverse in the Neotropics(6)
shallow pools and ponds with cattails (Typha spp.)
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 Entomol. 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 key to the Nearctic species of Celina with descriptions of new species (Coleoptera: Dytiscidae)
Young F.N. 1979. J. Kans. Ent. Soc. 52: 820-830.
5. A distributional checklist of the beetles (Coleoptera) of Florida.
Peck & Thomas. 1998. Florida Department of Agriculture and Consumer Services, Gainesville. 180 pp.
6.The Water Beetles of Florida
Epler J.H. 2010. Florida Department of Environmental Protection. Tallahassee. 414 pp.