Gaeolaelaps nolli (Karg)

Joharchi, Omid & Negm, Mohamed W., 2020, Soil-inhabiting mites of the family Laelapidae (Acari: Mesostigmata) from Assiut Governorate, Egypt, Zootaxa 4759 (4), pp. 488-510: 498-499

publication ID

https://doi.org/10.11646/zootaxa.4759.4.2

publication LSID

lsid:zoobank.org:pub:7EF7164C-3886-4148-B5A4-6C3038F2DCDB

DOI

http://doi.org/10.5281/zenodo.3810615

persistent identifier

http://treatment.plazi.org/id/F0048F54-292E-995D-FF7E-F95AFE1EFA44

treatment provided by

Plazi

scientific name

Gaeolaelaps nolli (Karg)
status

 

Gaeolaelaps nolli (Karg) 

Figures 28–30View FIGURES 28–33.

Hypoaspis nolli Karg, 1962: 62  .

Hypoaspis nolli  .— Karg, 1965: 311; Costa, 1968: 9.

Hypoaspis (Hypoaspis) nolli  .— Karg, 1971: 169, 1978: 16.

Hypoaspis (Geolaelaps) nolli  .— Karg, 1979: 80, 1982: 239, 1993: 140, 2006: 148; Xu & Liang, 1996: 191.

Hypoaspis (Gaeolaelaps) nolli  .— Faraji et al., 2008: 207.

Gaeolaelaps nolli  .— Farrier & Hennessey, 1993: 73; Beaulieu, 2009: 36; Bahrami et al., 2011: 351; Trach, 2012: 162; Kavianpour et al., 2013: 7; Nemati & Mohseni, 2013: 80; Kavianpour & Nemati, 2014: 321; Joharchi et al., 2018: 24.

Hypoaspis praesternalis  .— Evans, 1953: 272 (misidentification). Hypoaspis (Gaeolaelaps) praesternalis  .— Evans & Till, 1966: 173 (synonymy by Kavianpour et al., 2013: 7); Kavianpour & Nemati, 2014: 321.

Gaeolaelaps praesternalis  .— Joharchi et al., 2018: 24 View Cited Treatment (misidentification); Joharchi et al., 2019b: 81 View Cited Treatment (misidentification).

Specimens examined. Holotype Hypoaspis nolli Karg, 1962  : ZMB Kat. Nr. 40849, Versuchsfeld Kleinmachnow d. Berlin, 17.08.1957. One female; 27°11’ N, 31°09’ E, Assiut University , Assiut; 15 May 2016; coll. M.W. Negm; ex. soil.GoogleMaps 

Remarks. Gaeolaelaps nolli  was described from agricultural soil and grassland in Germany ( Karg, 1962). It is now recorded in Egypt for the first time, from soil. The synonymy presented above reveals some confusion about the identity of this species. Much of the information on this species has been published under the names Gaeolaelaps praesternalis  or Hypoaspis (Gaeolaelaps) praesternalis  . The original description of Hypoaspis praesternalis  by Willmann (1949) is brief, and both the description and illustrations lack some important details. The description of Hypoaspis nolli Karg, 1962  is more detailed, but does not include a direct comparison with H. praesternalis  .

Evans & Till (1966) synonymised these two species, but did not provide any explanation for that decision, and did not give details of the specimens they examined. This has probably led to the ambiguity about the identification of these two different species. Karg (1993) included both species in his key to species of Hypoaspis (Geolaelaps)  . The first author had the chance to examine both species in Karg’s collection which deposited in the Museum für Naturkunde Berlin in Germany. Thus, we can easily distinguish between these two species as follows:

1- size of body in G. nolli  is larger than G. praesternalis  ( Figs 28 & 31View FIGURES 28–33).

2- dorsal shield setae short, none of them reach to base of next setae in G. praesternalis  while much longer in G. nolli  (some setae in the opisthonotal region long enough to reach the base of the next posterior setae) ( Figs 28 & 31View FIGURES 28–33).

3- ornamentation of genital shield, posterior eight irregular cells flanked by a median inverse Y-shaped ornamentation in G. nolli  while in G. praesternalis  with the same inverse Y-shaped ornamentation medially but almost completely smooth (or faintly reticulated) posteriorly ( Figs 29 & 32View FIGURES 28–33).

4- the length of the peritreme short, reaches to mid-level of coxa II in G. nolli  while much longer in G. praesternalis  (reaches at least to anterior level of coxa I) ( Figs 30 & 33View FIGURES 28–33).

5- tarsus IV with two very long setae pd2, pd 3 in G. nolli  while tarsus IV without any long setae in G. praesternalis  (ad2 and ad3 longer than other setae on segment).

We have been unable to locate the holotype of H. praesternalis  . It is not present in the Willmann collection in the Zoologische Staatssammlungen, München (Stefan Friedrich, pers. comm.). The information on morphological characters of G. praesternalis  is based on the two females (ZMB Kat. Nr. 41038 & ZMB Kat. Nr. 41054) from Germany in museum für naturkunde, Berlin, Germany, identified by Prof. Dr. habil. Wolfang Karg as Hypoaspis praesternalis Willmann, 1949  .

ZMB

Museum für Naturkunde Berlin (Zoological Collections)

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Mesostigmata

Family

Laelapidae

Genus

Gaeolaelaps

Loc

Gaeolaelaps nolli (Karg)

Joharchi, Omid & Negm, Mohamed W. 2020
2020
Loc

Hypoaspis nolli

Karg, W. 1962: 62
Loc

Hypoaspis nolli

Costa, M. 1968: 9
Karg, W. 1965: 311
Loc

Hypoaspis (Hypoaspis) nolli

Karg, W. 1978: 16
Karg, W. 1971: 169
Loc

Hypoaspis (Geolaelaps) nolli

Karg, W. 2006: 148
Xu, X. & Liang, L. 1996: 191
Karg, W. 1993: 140
Karg, W. 1982: 239
Karg, W. 1979: 80
Loc

Hypoaspis (Gaeolaelaps) nolli

Faraji, F. & Abedi, L. & Ostovan, H. 2008: 207
Loc

Gaeolaelaps nolli

Joharchi, O. & Halliday, B. & Khaustov, A. A. & Ermilov, S. G. 2018: 24
Kavianpour, M. & Nemati, A. 2014: 321
Kavianpour, M. & Nemati, A. & Gwiazdowicz, D. & Kocheili, F. 2013: 7
Nemati, A. & Mohseni, M. 2013: 80
Trach, V. A. 2012: 162
Bahrami, F. & Arbabi, M. & Vafaei Shoushtari, R. & Kazemi, Sh. 2011: 351
Beaulieu, F. 2009: 36
Farrier, M. H. & Hennessey, M. K. 1993: 73
Loc

Hypoaspis praesternalis

Kavianpour, M. & Nemati, A. 2014: 321
Kavianpour, M. & Nemati, A. & Gwiazdowicz, D. & Kocheili, F. 2013: 7
Evans, G. O. & Till, W. M. 1966: 173
Evans, G. O. 1953: 272