| Scientific Name | Specimen Records |  Click photo to enlarge. Photo by Charles Staines. |
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| Neoporus carolinus (Fall) | 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: Ovate to suboval; dorsal surface sparsely pubescent. Color: head reddish yellow, palpi and antennae yellow except with apical antennal segment darkened; pronotum reddish yellow with medial dark spot on anterior and posterior margins; elytra with variable markings, from totally black to side margins pale and pale apical spot and pale transverse band (often interrupted). (Larson et al. 2000; Ciegler 2003)
Adult body length: 3.3-4.5 mm.
Larvae: Yellowish-white, dorsum of thorax and abdomen brown with light medial stripe; thorax with 2 lateral light spots on each segment; abdominal with lateral light spot on each segment; head yellowish-brown with dark spots in front of eyes; legs white with dark markings at base of coxae and trochanters. Head ovate; antennae 4-segmented, about ½ as long as head, segment 4 bifurcate. Pronotum with setae on lateral margin and posterior apical angle of each segment. Abdominal segments 1-6 membraneous 7-8 completely sclerotized; cerci 2-segmented, first segment with 3 long setae distally and 3 evenly spaced setae on middle ⅓ rd, second segment with 1 long seta distally. (Matta & Peterson 1985)
Larval body length : 5.0 mm.
Distribution
Global
This species is found from Newfoundland and Ontario south to Georgia and Alabama (Larson et al. 2000).
Park
This species is known from Big Cove, Bush Mountain, Cades Cove, and Oconaluftee; individuals have been taken in temporary pools, seeps, and in Malaise traps.
Natural history
Habitat
This species is found in slow boggy streams and ditches (Larson et al. 2000); rivers, lakes, ponds, and shallow pools (Ciegler 2003).
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.
Larson, D. J. Y. Alarie, & R. E. Roughley. 2000. Predaceous diving beetles (Coleoptera: Dytiscidae) of the Nearctic Region, with emphasis on the fauna of Canada and Alaska . NRC Press. Ottawa . 982 pp.
Matta, J. F. & D. E. Peterson. 1985. The larvae of six Nearctic Hydroporus of the subgenus Neoporus (Coleoptera: Dytiscidae). Proceedings of the Academy of Natural Sciences of Philadelphia 137:53-60.
