Eylais bisinuosa Piersig, 1899,

Davids, Kees, Sabatino, Antonio Di, Gerecke, Reinhard, Gledhill, Terence & Smit, Harry, 2005, On the taxonomy of water mites (Acari: Hydrachnidia) described from the Palaearctic, part 1: Hydrachnidae, Limnocharidae and Eylaidae, Zootaxa 1061, pp. 36-64: 59

publication ID

http://doi.org/ 10.5281/zenodo.170186

publication LSID

lsid:zoobank.org:pub:81B2332D-7AEB-406F-B2FC-6C2A36934B52

persistent identifier

http://treatment.plazi.org/id/03F7DE69-B053-FFF3-FEF6-FAAFFBCB81F3

treatment provided by

Plazi

scientific name

Eylais bisinuosa Piersig, 1899
status

 

Eylais bisinuosa Piersig, 1899 

Eylais bisinuosa nodipons Viets, 1919  , syn. nov.

Material examined: Eylais bisinuosa nodipons K. Viets  holotype female SMF 943.

Rejected identification: E. bisinuosa Voorst, Molenkolk  , The Netherlands, May 1929, slide 401, coll. Besseling, ZMAN (representing E. tullgreni  ).

Discussion: No type material of Eylais bisinuosa  is available and several authors proposed to consider it a species incerta ( K. Viets 1956 b) or a synonym of E. tantilla ( Davids 1979)  . However, in the holotype of Eylais bisinuosa nodipons  we find the typical shape of the gnathosoma and palps as it was described for the stem species. Eylais bisinuosa  differs from the closely related species E. planipons  , E. tantilla  and E. tullgreni  in a smaller mouth disk and the setae on the projection of P­ 3 being needle­like, not shortened and enlarged. Thus a specimen preserved under the name of E. bisinuosa  in ZMAN must clearly belong to the latter species group. A relatively short pharyngeal plate (<300) and P­ 4 (<250), and the minute eye bridge with a deep anterior indentation indicate that it belongs to E. tullgreni  . The minor morphological differences which induced the description of the subspecies E. b. nodipons  are surely taxonomically insignificant. We consider it a junior synonym of the stem species.

SMF

Forschungsinstitut und Natur-Museum Senckenberg

ZMAN

Instituut voor Taxonomische Zoologie, Zoologisch Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Trombidiformes

Family

Eylaidae

Genus

Eylais

Loc

Eylais bisinuosa Piersig, 1899

Davids, Kees, Sabatino, Antonio Di, Gerecke, Reinhard, Gledhill, Terence & Smit, Harry 2005
2005
Loc

Eylais bisinuosa nodipons

Viets 1919
1919