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Genus Copelatus

Copelatus caelatipennis Aubé - Copelatus caelatipennis Predacous Diving Beetle - Copelatus Predaceous Diving Beetle - Copelatus Beetle - Copelatus tiny Dytiscid - Copelatus Beetle, dorsal - Copelatus Predaceous diving beetles - Copelatus glyphicus Dytiscidae - Copelatus
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 Copelatinae
Genus Copelatus
Explanation of Names
Copelatus Erichson 1832
Numbers
8 spp. in our area(1) of which 2 reach Canada(2), >460 spp. worldwide(3)
Size
adult 4-6 mm, larva to 7-8 mm
Identification
Adult: each elytron with 5-10 longitudinal striae
see(3)(4)
Range
pantropical genus feebly represented in temperate zones; in our area, more diverse in the south (6 spp. in FL)(3)
Habitat
pioneer species, often found in temporary pools/puddles and in water bodies with accumulated organic debris (e.g. hollow trees)(3)
Food
larvae and adults feed on copepods, ostracods, springtails, and aquatic fly larvae
Remarks
In Ecuador, many species are found in fallen water-filled flower bracts of the palm tree Iriartea deltoidea. Large bracts may hold up to 5 litres of water, and contain more than 100 individual beetles.
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.The Water Beetles of Florida
Epler J.H. 2010. Florida Department of Environmental Protection. Tallahassee. 414 pp.
4.The Nearctic species of Copelatus Erichson (Coleoptera: Dytiscidae)
Frank N. Young. 1963. Quarterly Journal of the Florida Academy of Sciences, Vol. 26, pp. 56-77.