Biology:Atractelmis
Atractelmis is a genus of riffle beetles in the family Elmidae. The genus is monotypic, the sole species being Atractelmis wawona,[1][2] also known as the Wawona riffle beetle.[3][4] It is endemic to the Western United States between California, Oregon, and Idaho.[3][4] The specific name wawona refers to its type locality, Wawona in the Yosemite National Park.[5]
Habitat
Atractelmis wawona occur in riffles of rapid clear mountain streams at 600–1,500 m (2,000–5,000 ft) above sea level.[3] Adults and larvae occur in the same microhabitats and are typically found in aquatic mosses, particularly Platyhypnidium riparioides.[6] These beetles are easily overlooked but can be locally numerous.[3]
Description
Adults measure about 2 mm (0.079 in) in length and 0.9 mm (0.035 in) in width. They are shiny black above with four red spots on the elytra.[5] The larvae can grow to 4.8–5 mm (0.19–0.20 in) in length.[6]
References
- ↑ ITIS
- ↑ "Atractelmis Chandler, 1954". Species. GBIF. http://www.gbif.org/species/1033602.
- ↑ 3.0 3.1 3.2 3.3 "Atractelmis wawona Wawona Riffle Beetle". NatureServe. 10 October 2025. https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.111869/Atractelmis_wawona.
- ↑ 4.0 4.1 "Species Atractelmis wawona". https://bugguide.net/node/view/615824.
- ↑ 5.0 5.1 Chandler, H. P. (1954). "New genera and species of Elmidae (Coleoptera) from California". Pan-Pacific Entomologist 30 (2): 125–131. ISSN 0031-0603. https://www.biodiversitylibrary.org/page/56384260.
- ↑ 6.0 6.1 Shepard, W. D.; Barr, Cheryl B. (1991). "Description of the larva of Atractelmis (Coleoptera: Elmidae) and new information on the morphology, distribution, and habitat of Atractelmis wawona Chandler". Pan-Pacific Entomologist 67 (3): 195––199. https://www.biodiversitylibrary.org/part/269532.
Further reading
- Brown, Harley P. (1983). A Catalog of the Coleoptera of America North of Mexico. Family: Elmidae. USDA Agriculture Handbook. United States Department of Agriculture, Agricultural Research Service. https://books.google.com/books?id=MrO1AAAAIAAJ.
- Čiampor, Fedor Jr; Čiamporová-Zaťovičová, Zuzana (2019). "World Elmidae". Slovak Academy of Sciences. http://elmidae.myspecies.info/.
Wikidata ☰ Q18113395 entry
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