Cercyon floridanus

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Arriaga-Varela E, Seidel M, Deler-Hernández A, Viktor Senderov, Fikáček M (2017) A review of the Cercyon Leach (Coleoptera, Hydrophilidae, Sphaeridiinae) of the Greater Antilles. ZooKeys (681) : 39–93, doi. Versioned wiki page: 2017-06-21, version 148374, https://species-id.net/w/index.php?title=Cercyon_floridanus&oldid=148374 , contributors (alphabetical order): Pensoft Publishers.

Citation formats to copy and paste

BibTeX:

@article{Arriaga-Varela2017ZooKeys,
author = {Arriaga-Varela, Emmanuel AND Seidel, Matthias AND Deler-Hernández, Albert AND Viktor Senderov, AND Fikáček, Martin},
journal = {ZooKeys},
publisher = {Pensoft Publishers},
title = {A review of the Cercyon Leach (Coleoptera, Hydrophilidae, Sphaeridiinae) of the Greater Antilles},
year = {2017},
volume = {},
issue = {681},
pages = {39--93},
doi = {10.3897/zookeys.681.12522},
url = {https://zookeys.pensoft.net/articles.php?id=12522},
note = {Versioned wiki page: 2017-06-21, version 148374, https://species-id.net/w/index.php?title=Cercyon_floridanus&oldid=148374 , contributors (alphabetical order): Pensoft Publishers.}

}

RIS/ Endnote:

TY - JOUR
T1 - A review of the Cercyon Leach (Coleoptera, Hydrophilidae, Sphaeridiinae) of the Greater Antilles
A1 - Arriaga-Varela E
A1 - Seidel M
A1 - Deler-Hernández A
A1 - Viktor Senderov
A1 - Fikáček M
Y1 - 2017
JF - ZooKeys
JA -
VL -
IS - 681
UR - http://dx.doi.org/10.3897/zookeys.681.12522
SP - 39
EP - 93
PB - Pensoft Publishers
M1 - Versioned wiki page: 2017-06-21, version 148374, https://species-id.net/w/index.php?title=Cercyon_floridanus&oldid=148374 , contributors (alphabetical order): Pensoft Publishers.

M3 - doi:10.3897/zookeys.681.12522

Wikipedia/ Citizendium:

<ref name="Arriaga-Varela2017ZooKeys">{{Citation
| author = Arriaga-Varela E, Seidel M, Deler-Hernández A, Viktor Senderov, Fikáček M
| title = A review of the Cercyon Leach (Coleoptera, Hydrophilidae, Sphaeridiinae) of the Greater Antilles
| journal = ZooKeys
| year = 2017
| volume =
| issue = 681
| pages = 39--93
| pmid =
| publisher = Pensoft Publishers
| doi = 10.3897/zookeys.681.12522
| url = https://zookeys.pensoft.net/articles.php?id=12522
| pmc =
| accessdate = 2020-12-05

}} Versioned wiki page: 2017-06-21, version 148374, https://species-id.net/w/index.php?title=Cercyon_floridanus&oldid=148374 , contributors (alphabetical order): Pensoft Publishers.</ref>

See also the citation download page at the journal.


Taxonavigation

Ordo: Coleoptera
Familia: Hydrophilidae
Genus: Cercyon

Name

Cercyon floridanus Horn, 1890Wikispecies linkPensoft Profile

Figures in Flickr

www.flickr.com/photos/142655814@N07/albums/72157676249653654

Type locality

Florida (without specific locality).

Greater Antillean specimens studied

CAYMAN ISLANDS: Grand Cayman: blacklight trap, vi.1992, leg. blacklight trap (1 male; FSCA), blacklight trap, vi.1992, lgt. P. Fitzgerald (1: FSCA); Queen Elizabeth Botanic Garden, blacklight trap, 28.v.2009, leg. Thomas, Turnbow & Ball (1: FSCA); Georgetown, blacklight, 30.iii.1973. E.J. Gerberg (1: FSCA).

Published Greater Antillean records

GRAND CAYMAN: 3 km W Colliers, 19°21'N, 81°07'W (Thomas et al. 2013[1]).

Diagnosis

Body size 2.35–2.70 mm; dorsal surface of head (Fig. 2d) completely black, pronotum black sometimes with undefined piceous areas at lateral margins; elytra black (Figs 2d, f), with large rather sharply-defined yellowish to reddish-yellow lateroapical areas reaching apex lateralmost interval, medial ridge of prosternum anteriorly very weakly projected ventrally; mesoventral plate (Fig. 7d) very wide, ca. 1.9× as long as wide; metaventrite (Fig. 7d) without femoral lines, with broad raised pentagonal area (about 0.67× as long as wide) with large, deep and semicircular punctures; first abdominal ventrite without spiniform process in both sexes; apex of fifth ventrite without triangularly bulged projection at apex in both sexes; aedeagus (Fig. 7a) with parameres slightly shorter than phallobase, sinuately widened and bearing long setae at apex; median lobe widest at midlegth, narrowing to very finely truncate apex, without spines. For complete description see Smetana (1978)[2].
Cercyon floridanus is part of the C. tristis group according to Smetana (1978)[2] It resembles members of the C. gimmeli species group, C. sklodowskae sp. n. and C. praetextatus. Besides of the features of the aedeagus (Fig. 7a–c), it can be easily distinguished from them by the distinctly by the smallersize (2.35–2.70 mm), wider mesoventral plate (1.9× as long as wide in C. floridanus, 3.3–5.8× as long as wide in the other species). Besides that, females of C. floridanus lack the triangular projection on the apex of the fifth abdominal ventrite (present in C. sklodowskae), has a very small process of mid-prosternal ridge (large in C. gimmeli species group), and almost straight metatibia (curved in C. gimmeli species group).

Distribution

Cercyon floridanus is distributed in the southeastern USA, mainly in Florida, but rare records are also known from Georgia, Louisiana and Mississippi (Smetana 1978[2]). In the Greater Antilles it is only known from Cayman Islands, from where it was first reported by Thomas et al. (2013)[1] under the name “C. floridanuus Smetana” (Fig. 16a).

Taxon Treatment

  • Arriaga-Varela, E; Seidel, M; Deler-Hernández, A; Viktor Senderov, ; Fikáček, M; 2017: A review of the Cercyon Leach (Coleoptera, Hydrophilidae, Sphaeridiinae) of the Greater Antilles ZooKeys, (681): 39-93. doi

Images

Other References

  1. 1.0 1.1 1.2 Thomas M, Turnbow R, Steiner W (2013) An annotated checklist of the Coleoptera (Insecta) of the Cayman Islands. Insecta Mundi 280: 1–56.
  2. 2.0 2.1 2.2 Smetana A (1978) Revision of the subfamily Sphaeridiinae of America north of Mexico (Coleoptera: Hydrophilidae). Memoirs of the Entomological Society of Canada 105: 1–292. https://doi.org/10.4039/entm110105fv