Open Access Open Access  Restricted Access Subscription or Fee Access


DOI: http://dx.doi.org/10.11646/zootaxa.3895.1.9

Hexanchorus bifurcatus sp. nov., a new tepui riffle beetle (Coleoptera: Elmidae: Larainae) from Tafelberg, Suriname

CRYSTAL A. MAIER, ANDREW EDWARD Z. SHORT

Abstract


Here we present the first published record of a laraine elmid from Suriname, which represents a new species – Hexanchorus bifurcatus sp. nov. Specimens were collected from the summit of Tafelberg, a table mountain near the Wilhelmina Range of Suriname. This species can be distinguished from all other Hexanchorus by the bifurcate elytral apices and median projection of the third abdominal ventrite of the female, as well as the distinctive male genitalia. Habitus photos, illustrations of the genitalia, a distribution map, notes on habitat, and comparative diagnoses are provided.

 


Keywords


Aquatic insects, Guiana Shield, South America, Table Mountain, Neotropical Region, water beetle

Full Text:

PDF/A (3.45 MB)

References


Čiampor, F. Jr., Laššová, K. & Čiamporová-Zaťovičová, Z. (2013) Hypsilara breweri n.sp. from Venezuela: description of new species with notes on the morphology and phylogenetic relationships of the genus (Coleoptera: Elmidae: Larainae). Zootaxa, 3635 (5), 591–597.
http://dx.doi.org/10.11646/zootaxa.3635.5.10

Kodada, J. & Jäch, M.A. (1999) Roraima carinata gen. et sp.nov. and Neblinagena doylei sp. nov., two Larainae from Mount Roraima, Venezuela (Coleoptera: Elmidae). Entomological Problems, 30 (1), 13–30.

Kodada, J. & Jäch, M.A. (2005) Elmidae Curtis, 1830. In: Beutel, R.G., Leschen, R.A.B. (Eds.), Handbook of Zoology. Vol. IV. Arthropoda: Insecta. Part 38. Coleoptera, Beetles. Walter de Gruyter, Berlin, Germany, pp. 471–496.

Laššová, K., Čiampor, F. Jr. & Čiamporová-Zaťovičová, Z. (2014) Two new Larainae species from Guayana region, Venezuela (Coleoptera: Elmidae). Zootaxa, 3753 (2), 187–195.
http://dx.doi.org/10.11646/zootaxa.3753.2.8

Maguire, B. (1945) Notes on the Geology and Geography of Tafelberg, Suriname. Geographical Review, 35 (4), 563–579.
http://dx.doi.org/10.2307/210796

Maier, C.A. & Spangler, P.J. (2011) Hypsilara royi gen.n. and sp.n. (Coleoptera, Elmidae, Larainae) from Southern Venezuela, with a revised key to Larainae of the Western Hemisphere. Zookeys, 116, 25–36.
http://dx.doi.org/10.3897/zookeys.116.1347

Maier, C.A. (2013) A revision of the Larainae (Coleoptera, Elmidae) of Venezuela, with description of nine new species. Zookeys, 329, 33–91.
http://dx.doi.org/10.3897/zookeys.329.4961

Segura, M.O., Passos, M.I.S., Fonseca-Gessner, A.A., Froehlich, C.G. (2013) Elmidae Curtis, 1830 (Coleoptera, Polyphaga, Byrrhoidea) of the Neotropical region. Zootaxa, 3731 (1), 1–57.
http://dx.doi.org/10.11646/zootaxa.3731.1.1

Spangler, P.J. (1981) New and interesting water beetles from Mt. Roraima and Ptari‐tepui, Venezuela (Coleoptera: Dytiscidae and Hydrophilidae). Aquatic Insects, 3 (1), 1–11.
http://dx.doi.org/10.1080/01650428109361037

Spangler, P.J. (l985) A new genus and species of riffle beetle, Neblinagena prima, from the Venezuelan tepui, Cerro de la Neblina (Coleoptera, Elmidae, Larainae). Proceedings of the Entomological Society of Washington, 87 (3), 538–544.

Spangler, P.J. & Faitoute, R.A. (1991) A New Genus and Species of Neotropical Water Beetle, Jolyelmis auyana, from a Venezuelan Tepui (Coleoptera: Elmidae). Proceedings of the Biological Society of Washington, 104 (2), 322–327.

Spangler, P.J. & Santiago, S. (1992) The Aquatic Beetle Subfamily Larainae (Coleoptera: Elmidae) in Mexico, Central America, and the West Indies. Smithsonian Contributions to Zoology, No. 528, 1–74.
http://dx.doi.org/10.5479/si.00810282.528

Spangler, P.J. & Staines, C.L. (2003) Three new species of Hexanchorus Sharp, 1882 (Coleoptera: Elmidae: Larainae) from South America. Insecta Mundi, 17 (1–2), 45–48.

Zander, R.H. (1997) On Mounting Delicate Bryophytes in Glycerol. The Bryologist, 100 (3), 380–382.
http://dx.doi.org/10.1639/0007-2745(1997)100[380:omdbig]2.0.co;2


Refbacks

  • There are currently no refbacks.


 
ISSN 1175-5326 (Print Edition) & ISSN 1175-5334 (Online Edition)
Published by Magnolia Press, Auckland, New Zealand
A founding journal of Biotaxa