Difference between revisions of "Trichomyrmex chobauti"

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Bolton (1987) noted the strongly truncated clypeus of this species may be related in some way to its strictly granivorous diet, as may the strong psammophore of very long ammochaete hairs which arises on the flat ventral surface of the head. Collingwood and Agosti (1996) reported this species is comparatively uncommon.
  
 
==Identification==
 
==Identification==
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==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 297, see also)
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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.]].
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*[[Media:Collingwood & Agosti 1996.pdf|Collingwood, C. A. and D. Agosti. 1996.  Formicidae (Insecta: Hymenoptera) of Saudi Arabia (part 2). Fauna Saudi Arabia. 15:300-385.]]
 
*Emery, C. 1897a [1896].  Description d'une fourmi nouvelle d'Algérie (Hymén.). Bull. Soc. Entomol. Fr. 1896: 418-419 (page 418, fig. worker described)
 
*Emery, C. 1897a [1896].  Description d'une fourmi nouvelle d'Algérie (Hymén.). Bull. Soc. Entomol. Fr. 1896: 418-419 (page 418, fig. worker described)
 
*Emery, C. 1908j.  Beiträge zur Monographie der Formiciden des paläarktischen Faunengebietes. (Hym.) Teil V. Dtsch. Entomol. Z. 1908: 663-686 (page 672, Combination in Monomorium)
 
*Emery, C. 1908j.  Beiträge zur Monographie der Formiciden des paläarktischen Faunengebietes. (Hym.) Teil V. Dtsch. Entomol. Z. 1908: 663-686 (page 672, Combination in Monomorium)
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*[[Media:Sharaf, M.R., Salman, S. et al. 2016. Taxonomy and distribution of the genus Trichomyrmex in the Arabian Peninsula, with the description of two new species.pdf|Sharaf, M.R., Salman, S., Al Dhafer, H.M., Akbar, S.A., Abdel-Dayem, M.S. and Aldawood, A.S. 2016. Taxonomy and distribution of the genus ''Trichomyrmex'' Mayr, 1865 (Hymenoptera: Formicidae) in the Arabian Peninsula, with the description of two new species. European Journal of Taxonomy. 246:1-36. (DOI 10.5852/ejt.2016.246).]]
 
*[[Media:Sharaf, M.R., Salman, S. et al. 2016. Taxonomy and distribution of the genus Trichomyrmex in the Arabian Peninsula, with the description of two new species.pdf|Sharaf, M.R., Salman, S., Al Dhafer, H.M., Akbar, S.A., Abdel-Dayem, M.S. and Aldawood, A.S. 2016. Taxonomy and distribution of the genus ''Trichomyrmex'' Mayr, 1865 (Hymenoptera: Formicidae) in the Arabian Peninsula, with the description of two new species. European Journal of Taxonomy. 246:1-36. (DOI 10.5852/ejt.2016.246).]]
 
*Ward, P.S., Brady, S.G., Fisher, B.L. & Schultz, T.R. 2014. The evolution of myrmicine ants: phylogeny and biogeography of a hyperdiverse ant clade (Hymenoptera: Formicidae). Systematic Entomology, DOI: 10.1111/syen.12090.
 
*Ward, P.S., Brady, S.G., Fisher, B.L. & Schultz, T.R. 2014. The evolution of myrmicine ants: phylogeny and biogeography of a hyperdiverse ant clade (Hymenoptera: Formicidae). Systematic Entomology, DOI: 10.1111/syen.12090.
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==References based on [https://benoitguenard.wordpress.com/gabi-articles/ Global Ant Biodiversity Informatics]==
 +
*Barech G., M. Khaldi, X. Espadaler, and H. Cagniant. 2017. The genus Monomorium Mayr, 1855 (Hymenoptera, Formicidae) in the Maghreb (North Africa): Identification key, redescription of Monomorium major Bernard, 1953 and new records from Algeria. Boletin de la Sociedad Entomológica Aragonesa 61: 151-157.
 +
*Borowiec L. 2014. Catalogue of ants of Europe, the Mediterranean Basin and adjacent regions (Hymenoptera: Formicidae). Genus (Wroclaw) 25(1-2): 1-340.
 +
*Cagniant, H. "Liste actualisee des fourmis du Maroc (Hymenoptera: Formicidae)." Myrmecologische Nachrichten 8 (2006): 193-200.
 +
*Collingwood C. A., D. Agosti, M. R. Sharaf, A. Van Harten, 2011. Order Hymenoptera, family Formicidae. Arthropod Fauna of the UAE 4: 405-474
 +
*Collingwood C.A., D.Agosti, M.R. Sharaf, and A. van Harten. 2011. Order Hymenoptera, family Formicidae. Arthropod fauna of the UAE, 4: 405–474
 +
*Délye G. 1964. Sur le peuplement myrmécologique de quelques ergs du Sahara nord-occidental. Travaux de l'Institut de Recherches Sahariennes 23: 165-170.
 +
*Délye, G., and J. C. Bonaric. "Les fourmis arenicoles du sud marocain (Hym. formicidae)." Bulletin de la Société Entomologique de France 3 (1973): 107-110.
 +
*Délye, G. "Répartition des fourmis dans les grands massifs de dunes du Sahara nord-occidental (Hym.)." Bulletin de la Société Entomologique de France 74 (1970): 224-227.
 +
*Emery, C. "Beiträge zur Monographie der Formiciden des paläarktischen Faunengebietes. (Hym.) Teil V. Monomorium." Deutsche Entomologische Zeitschrift 1908 (1908): 663-686.
 +
*Emery, C. "Description d'une fourmi nouvelle d'Algérie (Hymén.)." Bulletin de la Société Entomologique de France 1896 (1897): 418-419.
 +
*Ettershank G. 1966. A generic revision of the world Myrmicinae related to Solenopsis and Pheidologeton (Hymenoptera: Formicidae). Aust. J. Zool. 14: 73-171.
 +
*Forel, A. "Les fourmis du Sahara algérien récoltées par M. le Professeur A. Lameere et le Dr. A. Diehl." Annales de la Société Entomologique de Belgique 46 (1902): 147-158.
 +
*Sharaf M. R., S. Salman, H. M. Al Dhafer, S. A. Akbar, M. S. Abdel-Dayem, A. S. Aldawood. 2016. Taxonomy and distribution of the genus Trichomyrmex Mayr, 1865 (Hymenoptera: Formicidae) in the Arabian Peninsula, with the description of two new species. European Journal of Taxonomy 246: 1–36
  
 
[[category:Species]]
 
[[category:Species]]

Latest revision as of 22:59, 26 June 2020

Trichomyrmex chobauti
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Trichomyrmex
Species group: destructor
Species: T. chobauti
Binomial name
Trichomyrmex chobauti
(Emery, 1896)

Monomorium chobauti casent0904606 p 1 high.jpg

Monomorium chobauti casent0904606 d 1 high.jpg

Specimen Labels

Subspecies
Synonyms

Bolton (1987) noted the strongly truncated clypeus of this species may be related in some way to its strictly granivorous diet, as may the strong psammophore of very long ammochaete hairs which arises on the flat ventral surface of the head. Collingwood and Agosti (1996) reported this species is comparatively uncommon.

Identification

Sharaf et al. (2016) - Trichomyrmex chobauti is closest to Trichomyrmex almosayari and Trichomyrmex lameerei. All three species share the abundant long ammochaete J-shaped hairs that form a distinct psammophore on the underside of the head. Trichomyrmex chobauti can be readily separated from T. almosayari by the bicoloured body, the oval eyes, and the straight or feebly concave posterior margin of the head. From T. lameerei it can be distinguished by the smaller size, the longer antennal scapes that reach the posterior margin of the head, and the unsculptured posterior half of the head.

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Afrotropical Region: Saudi Arabia, United Arab Emirates.
Palaearctic Region: Algeria (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.

  • chobauti. Holcomyrmex chobauti Emery, 1896j: 418, fig. (w.) ALGERIA. Délye, 1961: 69 (q.m.). Combination in Monomorium: Emery, 1908h: 672; in M. (Equestrimessor): Santschi, 1919d: 92; in Trichomyrmex: Ward et al., 2014: 16. Senior synonym of faf: Emery, 1922e: 176. See also: Bolton, 1987: 297. Current subspecies: nominal plus ajjer.
  • faf. Holcomyrmex faf Forel, 1902a: 151 (q.m.) ALGERIA. Combination in Monomorium: Emery, 1908h: 673. Junior synonym of chobauti: Emery, 1922e: 176.

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

Description

Worker

Sharaf et al. (2016) - TL 3.27; HL 0.88; HW 0.88; SL 0.72; EL 0.16; ML 1.22; PW 0.45; PTL 0.28; PTW 0.30; PPL 0.25; CI 100; El 18; SI 82.

Head. As long as broad, with feebly concave posterior margin and weakly convex sides; anterior clypeal margin distinctly concave; eyes of moderate size (EL 0.18 × HW) with 11 ommatidia in longest row; scapes when laid back from their insertions reach posterior margin of head.

Mesosoma. Promesonotum convex in profile, running back to straight mesonotum; metanotal groove impressed; propodeal dorsum nearly twice as long as declivity in profile; propodeal spiracle circular, situated above midline of propodeum in profile.

Petiole. Petiolar node rounded in profile.

Postpetiole. Node low and broad in profile.

Pilosity. Underside of head with long ammochaete J-shaped hairs forming a distinct psammophore; cephalic dorsum with sparse suberect hairs directed inward to midline of head; antennae with dense appressed pubescence; anterior clypeal margin with abundant long curved hairs; pilosity on mesosoma restricted to two or three pairs of hairs on pronotum and promesonotum; sparse decumbent pubescence on mesonotal and propodeal dorsum; petiole and postpetiole bare; gastral tergites with sparse appressed pubescence, few longer pairs of hairs present at gastral apex.

Sculpture. Clypeus, mandibles, and cephalic surface between frontal carinae and in front of eyes longitudinally rugulose; promesonotum and mesonotum faintly longitudinally rugulose; propodeum and sides of mesonotum, petiole and postpetiole densely punctulate-reticulate, gaster smooth and shining.

Colour. Head, mesosoma, petiole and postpetiole reddish brown, gaster dark brown.

Type Material

Sharaf et al. (2016) - Algeria: Palearctic. Syntype worker (Museo Civico di Storia Naturale, Genoa) (CASENT0904606) [examined].

References

References based on Global Ant Biodiversity Informatics

  • Barech G., M. Khaldi, X. Espadaler, and H. Cagniant. 2017. The genus Monomorium Mayr, 1855 (Hymenoptera, Formicidae) in the Maghreb (North Africa): Identification key, redescription of Monomorium major Bernard, 1953 and new records from Algeria. Boletin de la Sociedad Entomológica Aragonesa 61: 151-157.
  • Borowiec L. 2014. Catalogue of ants of Europe, the Mediterranean Basin and adjacent regions (Hymenoptera: Formicidae). Genus (Wroclaw) 25(1-2): 1-340.
  • Cagniant, H. "Liste actualisee des fourmis du Maroc (Hymenoptera: Formicidae)." Myrmecologische Nachrichten 8 (2006): 193-200.
  • Collingwood C. A., D. Agosti, M. R. Sharaf, A. Van Harten, 2011. Order Hymenoptera, family Formicidae. Arthropod Fauna of the UAE 4: 405-474
  • Collingwood C.A., D.Agosti, M.R. Sharaf, and A. van Harten. 2011. Order Hymenoptera, family Formicidae. Arthropod fauna of the UAE, 4: 405–474
  • Délye G. 1964. Sur le peuplement myrmécologique de quelques ergs du Sahara nord-occidental. Travaux de l'Institut de Recherches Sahariennes 23: 165-170.
  • Délye, G., and J. C. Bonaric. "Les fourmis arenicoles du sud marocain (Hym. formicidae)." Bulletin de la Société Entomologique de France 3 (1973): 107-110.
  • Délye, G. "Répartition des fourmis dans les grands massifs de dunes du Sahara nord-occidental (Hym.)." Bulletin de la Société Entomologique de France 74 (1970): 224-227.
  • Emery, C. "Beiträge zur Monographie der Formiciden des paläarktischen Faunengebietes. (Hym.) Teil V. Monomorium." Deutsche Entomologische Zeitschrift 1908 (1908): 663-686.
  • Emery, C. "Description d'une fourmi nouvelle d'Algérie (Hymén.)." Bulletin de la Société Entomologique de France 1896 (1897): 418-419.
  • Ettershank G. 1966. A generic revision of the world Myrmicinae related to Solenopsis and Pheidologeton (Hymenoptera: Formicidae). Aust. J. Zool. 14: 73-171.
  • Forel, A. "Les fourmis du Sahara algérien récoltées par M. le Professeur A. Lameere et le Dr. A. Diehl." Annales de la Société Entomologique de Belgique 46 (1902): 147-158.
  • Sharaf M. R., S. Salman, H. M. Al Dhafer, S. A. Akbar, M. S. Abdel-Dayem, A. S. Aldawood. 2016. Taxonomy and distribution of the genus Trichomyrmex Mayr, 1865 (Hymenoptera: Formicidae) in the Arabian Peninsula, with the description of two new species. European Journal of Taxonomy 246: 1–36