Difference between revisions of "Monomorium vatranum"

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[[:File:Monomorium_vatranum__casent0902207_l_1_high.jpg|Specimen Labels]]
 
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Well collected in the Namib Desert.
  
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==Identification==
 
==Identification==
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A member of the ''viator''-complex. A small darkly coloured species.
  
 
{{Species identification keys}}
 
{{Species identification keys}}
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==Castes==
 
==Castes==
 
  
 
==Nomenclature==
 
==Nomenclature==
 
{{Nomenclature}}
 
{{Nomenclature}}
 
*''<span style='color:red;font-weight:bold;'>vatranum.</span> Monomorium vatranum'' Bolton, 1987: 362, fig. 55 (w.) NAMIBIA.
 
*''<span style='color:red;font-weight:bold;'>vatranum.</span> Monomorium vatranum'' Bolton, 1987: 362, fig. 55 (w.) NAMIBIA.
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{{nomenplus}}
  
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===Description===
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====Worker====
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TL 2.8, HL 0.71, HW 0.52, CI 73, SL 0.60, SI 115, PW 0.34, AL 0.80.
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Holotype. Median portion of clypeus with its anterior margin shallowly convex. With the head in full-face view the sides in front of the eyes roughly parallel, behind the eyes weakly converging posteriorly. Occipital margin broadly and very shallowly concave. Maximum diameter of eye 0.27 x HW and with 9 ommatidia in the longest row. Scapes long, SI > 110. Alitrunk in profile with promesonotum low and only very shallowly convex, the metanotal groove not or only vestigially impressed. Dorsum of head with 3 pairs of hairs straddling the midline behind the level of the frontal lobes, without hairs close to the occipital corners. Dorsal alitrunk with a single pair of hairs, situated at the pronotal humeri. Petiole and postpetiole each with a single pair of backward directed hairs. First gastral tergite with hairs sparsely but more or less evenly distributed over the selerite in front of the apical transverse row. Cephalic dorsum with superficial reticular patterning, which may appear feebly shagreenate close to the occipital margin. Pronotal dorsum finely and densely reticulate, the sculpture becoming more sharply defined posteriorly on the alitrunk so that the propodeum is shallowly reticulate-punctulate. First gastral tergite smooth and shining, with superficial reticulate patterning only. Colour a uniform very dark brown.
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Paratypes. TL 2.7-3.0, HL 0.62-0.74, HW 0.45-0.56, CI 72-76, SL 0.53-0.63, SI 113-120, PW 0.34-0.36, AL 0.76-0.82 (12 measured). Maximum diameter of eye 0.27-0.29 x HW, with 9-10 ommatidia in the longest row. As holotype but colour varying from medium brown to blackish brown, the colour usually uniform but sometimes the alitrunk slightly lighter than the head and gaster.
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===Type Material===
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Holotype worker, Namibia: Namib Desert, Swartbank 14°50' E, 23°16' S, sample S8, 15.vii.1981 (A. C. Marsh) ({{BMNH}}). Paratypes, 11 workers with same data as holotype; 3 workers, Namib Desert, Ganab, 15°37' E, 23°08' S, sample 98, sandy plain, 16.viii.1981 (A. C. Marsh); 3 workers with same data as last but sample G24, 5.v.1981; 3 workers with same data but sample 187, 19.viii.1981; 1 worker, Namib Desert, Mirabeb, 15°24' E, 23° 25' S, sample M13, 8.iv.1982 (A. C. Marsh) (BMNH; {{MHNG}}; {{MCZ}}).
 
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===Description===
 
  
 
==References==
 
==References==
*Bolton, B. 1987. A review of the Solenopsis genus-group and revision of Afrotropical Monomorium Mayr (Hymenoptera: Formicidae). Bull. Br. Mus. (Nat. Hist.) Entomol. 54: 263-452 (page 362, fig. 55 worker described)
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*[[Media:Bolton 1987.pdf|Bolton, B. 1987. A review of the ''Solenopsis'' genus-group and revision of Afrotropical ''Monomorium'' Mayr (Hymenoptera: Formicidae). Bulletin of the British Museum (Natural History). Entomology. 54:263-452. '''PDF]]. (page 362, fig. 55 worker described)
  
 
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[[category:Formicidae]][[category:Myrmicinae]][[category:Solenopsidini]][[category:Monomorium]][[category:Monomorium vatranum]]
 
[[category:Formicidae]][[category:Myrmicinae]][[category:Solenopsidini]][[category:Monomorium]][[category:Monomorium vatranum]]
 
[[category:Myrmicinae species]][[category:Solenopsidini species]][[category:Monomorium species|vatranum]]
 
[[category:Myrmicinae species]][[category:Solenopsidini species]][[category:Monomorium species|vatranum]]
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[[Category:Ssr]]

Revision as of 20:49, 13 September 2019

Monomorium vatranum
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Solenopsidini
Genus: Monomorium
Species: M. vatranum
Binomial name
Monomorium vatranum
Bolton, 1987

Monomorium vatranum casent0902207 p 1 high.jpg

Monomorium vatranum casent0902207 d 1 high.jpg

Specimen Labels

Well collected in the Namib Desert.

Identification

A member of the viator-complex. A small darkly coloured species.

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Afrotropical Region: Namibia (type locality).


Distribution based on AntMaps

AntMapLegend.png

Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Nomenclature

The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • vatranum. Monomorium vatranum Bolton, 1987: 362, fig. 55 (w.) NAMIBIA.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

Worker

TL 2.8, HL 0.71, HW 0.52, CI 73, SL 0.60, SI 115, PW 0.34, AL 0.80.

Holotype. Median portion of clypeus with its anterior margin shallowly convex. With the head in full-face view the sides in front of the eyes roughly parallel, behind the eyes weakly converging posteriorly. Occipital margin broadly and very shallowly concave. Maximum diameter of eye 0.27 x HW and with 9 ommatidia in the longest row. Scapes long, SI > 110. Alitrunk in profile with promesonotum low and only very shallowly convex, the metanotal groove not or only vestigially impressed. Dorsum of head with 3 pairs of hairs straddling the midline behind the level of the frontal lobes, without hairs close to the occipital corners. Dorsal alitrunk with a single pair of hairs, situated at the pronotal humeri. Petiole and postpetiole each with a single pair of backward directed hairs. First gastral tergite with hairs sparsely but more or less evenly distributed over the selerite in front of the apical transverse row. Cephalic dorsum with superficial reticular patterning, which may appear feebly shagreenate close to the occipital margin. Pronotal dorsum finely and densely reticulate, the sculpture becoming more sharply defined posteriorly on the alitrunk so that the propodeum is shallowly reticulate-punctulate. First gastral tergite smooth and shining, with superficial reticulate patterning only. Colour a uniform very dark brown.

Paratypes. TL 2.7-3.0, HL 0.62-0.74, HW 0.45-0.56, CI 72-76, SL 0.53-0.63, SI 113-120, PW 0.34-0.36, AL 0.76-0.82 (12 measured). Maximum diameter of eye 0.27-0.29 x HW, with 9-10 ommatidia in the longest row. As holotype but colour varying from medium brown to blackish brown, the colour usually uniform but sometimes the alitrunk slightly lighter than the head and gaster.

Type Material

Holotype worker, Namibia: Namib Desert, Swartbank 14°50' E, 23°16' S, sample S8, 15.vii.1981 (A. C. Marsh) (The Natural History Museum). Paratypes, 11 workers with same data as holotype; 3 workers, Namib Desert, Ganab, 15°37' E, 23°08' S, sample 98, sandy plain, 16.viii.1981 (A. C. Marsh); 3 workers with same data as last but sample G24, 5.v.1981; 3 workers with same data but sample 187, 19.viii.1981; 1 worker, Namib Desert, Mirabeb, 15°24' E, 23° 25' S, sample M13, 8.iv.1982 (A. C. Marsh) (BMNH; Musee d'Histoire Naturelle Genève; Museum of Comparative Zoology).

References