| Scientific Name | Specimen Records |  Click photo to enlarge. Photo by Charles Staines. |
|||
| Uvarus lacustris (Say) | ATBI Database | ||||
| Common Name | |||||
| N/A | |||||
| Kingdom | Phylum | Class | Order | Family | |
| Animalia | Arthropoda | Insecta | Coleoptera | Dytiscidae | |
| Animals | Arthropods | Insects | Beetles | Predaceous Diving Beetles | |
Physical characteristics:
Adult : Color: head pale reddish-brown, darker near eyes; palps pale; pronotum yellow with basal margin dark in middle, center of pronotum often darkened; elytra yellow to pale brown with scattered darker areas; venter yellow to reddish-brown; legs reddish-yellow. Elytra: finely punctate. Pronotal and elytral grooves well developed; pronotal groove about ⅔ rds length of pronotum; elytral groove longer than pronotal groove. (Larson et al. 2000)
Adult body length : 1.6-1.9 mm.
Larvae: Unknown.
Distribution:
Global
This species is found throughout the eastern United States west to Colorado (Larson et al. 2000).
Park
This species is known from the Cades Cove, Cataloochee, and Oconaluftee areas of the park. Specimens have been taken in flooded meadows, seeps, ditches, and temporary pools in May.
Natural History:
Habitat
This species is often common in small muddy or clay bottomed pools and in shallow, sun-warmed water along the edges of large ponds (Larson et al. 2000; Ciegler 2003). Hilsenhoff (1994) found most specimens in ponds but also in marshes, bogs, sloughs, ditches, and along the margins of streams.
Conservation Biology
This species is widespread, common, and not globally threatened.
Acknowledgements
Text:
Charles Staines.
Photographs:Charles Staines.
Web page:
References
Ciegler, J. C. 2003. Water beetles of South Carolina (Coleoptera: Gyrinidae, Haliplidae, Noteridae, Dytiscidae, Hydrophilidae, Hydraenidae, Scirtidae, Elmidae, Dryopidae, Limnichidae, Heteroceridae, Psephenidae, Ptilodactylidae, and Chelonariidae). Biota of South Carolina . Volume 3. Clemson University, Clemson. 207 pp.
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.
Larson, D. J. Y. Alarie, & 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.
