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Species Copelatus glyphicus
Classification Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Adephaga (Ground and Water Beetles)
Family Dytiscidae (Predacious Diving Beetles)
Genus Copelatus
Species glyphicus (Copelatus glyphicus)
Numbers one of 7 species in North America, 6 of which are listed at nearctica.com, and an additional species ( C. cubaensis) listed at Beetles of Florida
one of 2 species in Canada, the other being C. chevrolati Size adult body length 4.2-5.5 mm
larva length about 7.5 mm Identification Adult: pale yellowish brown to reddish brown, ventral surface darker. Body with fine, moderately dense punctation dorsally. Pronotum with lateral bead complete. Each elytron with short sulcus near margin plus 10 complete sulci. Venter with prosternal process relatively flattened, convex basally. [Larson et al 2000]
Larva: gray with grayish-brown or yellowish-brown spots on thoracic segments 2 and 3 and a medial longitudinal stripe. Body subdepressed, elongate. Head subquadrate, with 6 ocelli; antennae 4-segmented, cylindrical, segments 1 and 3 subequal in length, 4th shortest about ½ length of 3. Pronotum with sides rounded, lateral margin with few long setae. Cerci 1-segmented, about as long as abdominal segment 8. Legs without swimming hairs. [Spangler 1962] Range Newfoundland to Florida, west to Texas and Nebraska, north to Wisconsin and Ontario; also found in California and Oregon Habitat ponds, pools, puddles, hollow trees, leaf litter, and temporary pools; adults are attracted to light Season adults from March to August in North Carolina Food larvae and adults feed on copepods, ostracods, springtails, and aquatic fly larvae Remarks C. chevrolati is the only other Copelatus species present in Canada and several areas of United States. See Also In C. chevrolati, each elytron has only 8 grooves (striae or sulci) rather than 10 - see pages 5 & 6 in PDF doc by Frank Young. Print References Larson, D.J., Y. Alarie, and R.E. Roughley. 2000. Predacious diving beetles (Coleoptera: Dytiscidae) of the Nearctic Region, with emphasis on the fauna of Canada and Alaska. NRC Press. Ottawa. 982 pp.
Spangler, P.J. 1962. Natural history of Plummers Island, Maryland. XIV. Biological notes and description of the larva and pupa of Copelatus glyphicus (Say) (Coleoptera: Dytiscidae). Proceedings of the Biological Society of Washington. 75:19-24. Internet References adult photo plus description of larva and adult, distribution, habitat, food, references (Charles Staines, Discover Life in America, dlia.org)
presence in Florida; list (Michael Thomas, Beetles of Florida, Florida State Collection of Arthropods)
presence in Michigan; list (Ethan Bright, Aquatic Insects of Michigan, U. of Michigan)
presence in Wisconsin; PDF doc list (Wisconsin Dept. of Natural Resources)
presence in Iowa; PDF doc list (Iowa Dept. of Natural Resources)
presence in California; list (Santa Barbara Museum of Natural History, California)
notes on C. blatchleyi and chevrolati; PDF doc "Two New Species of Water Beetles from Florida" (Frank Young, 1953, Psyche 60:21-27, Cambridge Entomological Club)
distribution in Canada; PDF doc list of provinces (D.J. Larson and R.E. Roughley, Dytiscidae, in Checklist of Beetles of Canada and Alaska) Contributed by Robin McLeod on 10 January, 2007 - 9:07am Additional contributions by cotinisLast updated 10 September, 2008 - 1:46pm |
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