Pharceonus volcanus

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Maier C (2013) A revision of the Larainae (Coleoptera, Elmidae) of Venezuela, with description of nine new species. ZooKeys 329 : 33–91, doi. Versioned wiki page: 2013-09-05, version 36691, https://species-id.net/w/index.php?title=Pharceonus_volcanus&oldid=36691 , contributors (alphabetical order): Pensoft Publishers.

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BibTeX:

@article{Maier2013ZooKeys329,
author = {Maier, Crystal A.},
journal = {ZooKeys},
publisher = {Pensoft Publishers},
title = {A revision of the Larainae (Coleoptera, Elmidae) of Venezuela, with description of nine new species},
year = {2013},
volume = {329},
issue = {},
pages = {33--91},
doi = {10.3897/zookeys.329.4961},
url = {http://www.pensoft.net/journals/zookeys/article/4961/abstract},
note = {Versioned wiki page: 2013-09-05, version 36691, https://species-id.net/w/index.php?title=Pharceonus_volcanus&oldid=36691 , contributors (alphabetical order): Pensoft Publishers.}

}

RIS/ Endnote:

TY - JOUR
T1 - A revision of the Larainae (Coleoptera, Elmidae) of Venezuela, with description of nine new species
A1 - Maier C
Y1 - 2013
JF - ZooKeys
JA -
VL - 329
IS -
UR - http://dx.doi.org/10.3897/zookeys.329.4961
SP - 33
EP - 91
PB - Pensoft Publishers
M1 - Versioned wiki page: 2013-09-05, version 36691, https://species-id.net/w/index.php?title=Pharceonus_volcanus&oldid=36691 , contributors (alphabetical order): Pensoft Publishers.

M3 - doi:10.3897/zookeys.329.4961

Wikipedia/ Citizendium:

<ref name="Maier2013ZooKeys329">{{Citation
| author = Maier C
| title = A revision of the Larainae (Coleoptera, Elmidae) of Venezuela, with description of nine new species
| journal = ZooKeys
| year = 2013
| volume = 329
| issue =
| pages = 33--91
| pmid =
| publisher = Pensoft Publishers
| doi = 10.3897/zookeys.329.4961
| url = http://www.pensoft.net/journals/zookeys/article/4961/abstract
| pmc =
| accessdate = 2019-12-11

}} Versioned wiki page: 2013-09-05, version 36691, https://species-id.net/w/index.php?title=Pharceonus_volcanus&oldid=36691 , contributors (alphabetical order): Pensoft Publishers.</ref>

See also the citation download page at the journal.


Taxonavigation

Ordo: Coleoptera
Familia: Elmidae
Genus: Pharceonus

Name

Pharceonus volcanus Spangler & Santiago-Fragoso, 1992Wikispecies linkPensoft Profile

==

See Spangler and Santiago-Fragoso 1992[1] for complete species description and genitalia illustrations.

Material examined

PANAMA: Chiriqui: “PANAMA, Chiriqui; Volcan (26km W); 1380 m, small brook; at culvert, 3 June1983” “Collectors; P.J. Spangler; R.A. Faitoute; W.E. Steiner” (1 Holotype USNM). VENEZUELA: Zulia State: “VENEZUELA: Zulia; SW of Machiques; 31 XII 05; 435m; 10°03'N, 72°43'W; trib[utary] of Rio Negro” “A.E.Z. Short; P.J. Torres; collectors” (5 specimens SEMC). “VENEZUELA: Zulia State; 10°03.058'N, 72°42.974'W; 435m; Perija National Park; Toromo; 31.xii.2005; leg. A.E.Z. Short; Small stream & seep; AS-06-001” (3 specimens SEMC).

Diagnosis

This species can be distinguished from all other species of Pharceonus by its small size (3.1–3.5 mm), dark brown color, genitalia (aedeagus + phallobase) of medium width (4.3× as long as wide), and pronotum with only a shallow transverse impression across apical third (Fig. 87).

Intraspecific variation

This species varies slightly in color, from dark brown to medium brown, and size, from 3.1–3.5 mm.

Distribution and habitat

This species is found on roots in small to medium forested streams, and on roots in seeps in the Sierra de Perija in Venezuela (Fig. 5). This appears to be the southern extent of its range. Outside of Venezuela, this species is known from as far north as Costa Rica. Specimens have been collected in leaf packs and in the benthos in shallow streams.

Associated species

This species was collected at the same sites as following taxa: Oocyclus spp., Anacaena spp., Enochrus spp., Notionotus spp., and Chasmogenus spp. (Hydrophilidae), and Hydraenidae.

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

  1. Spangler P, Santiago-Fragoso S (1992) The Aquatic Beetle Subfamily Larainae (Coleoptera: Elmidae) in Mexico, Central America, and the West Indies. Smithsonian Contributions to Zoology no. 528, 74 pp.

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