Disersus
| Notice: | This page is derived from the original publication listed below, whose author(s) should always be credited. Further contributors may edit and improve the content of this page and, consequently, need to be credited as well (see page history). Any assessment of factual correctness requires a careful review of the original article as well as of subsequent contributions.
If you are uncertain whether your planned contribution is correct or not, we suggest that you use the associated discussion page instead of editing the page directly. This page should be cited as follows (rationale):
Citation formats to copy and paste
BibTeX: @article{Maier2013ZooKeys329, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="Maier2013ZooKeys329">{{Citation See also the citation download page at the journal. |
Ordo: Coleoptera
Familia: Elmidae
Name
Disersus Sharp, 1882 – Wikispecies link – Pensoft Profile
Diagnosis
This genus can be distinguished from all other genera of Larainae that occur in South America by the following combination of characters: its large size (5.6–10.1 mm), distinct pronotum, which lacks a transverse depression across the apical third (Fig. 21), and elytron lacking an accessory stria (Fig. 18).
Distribution
Members of this genus occur in Central and South America, as far north as Costa Rica and as far south as Cuzco, Peru (Spangler and Santiago-Fragoso 1987[1]).
Habitat
Disersus species can be found in fast-flowing streams and rivers, clinging to rocks and flying upstream in riffles and cascades. They rapidly enter and exit the water with great ease, carrying with them a silvery air bubble. They can be found in streams by looking for moving teardrop shaped air bubbles on the downstream sides of rocks with water cascading over them. Individuals of this genus are also commonly found at UV and mercury vapor lamps (pers. obs.).
Taxon Treatment
- Maier, C; 2013: A revision of the Larainae (Coleoptera, Elmidae) of Venezuela, with description of nine new species ZooKeys, 329: 33-91. doi
Other References
- ↑ Spangler P, Santiago-Fragoso S (1987) A revision of the Neotropical aquatic beetle genera Disersus, Pseudodisersus and Potamophilops (Coleoptera: Elmidae). Smithsonian Contributions to Zoology no. 446, 40 pp.
Images
|
