Strongylognathus afer

AntWiki - Where Ant Biologists Share Their Knowledge
Jump to navigation Jump to search
Strongylognathus afer
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Strongylognathus
Species: S. afer
Binomial name
Strongylognathus afer
Emery, 1884

Strongylognathus afer casent0280847 p 1 high.jpg

Strongylognathus afer casent0280847 d 1 high.jpg

Specimen Labels

Synonyms
At a Glance • Slave-maker  

 

Identification

Distribution

Distribution based on Regional Taxon Lists

Palaearctic Region: Algeria (type locality), Morocco, Tunisia.

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.

  • afer. Strongylognathus afer Emery, 1884a: 380 (footnote) (q.) ALGERIA. Forel, 1900e: 279 (w.); Santschi, 1910d: 71 (m.). Subspecies of huberi: Medina, 1889: 31; Dalla Torre, 1893: 130; Forel, 1900e: 279. Revived status as species: Santschi, 1910d: 71; Emery, 1924d: 285; Bolton, 1976: 305. Senior synonym of foreli: Sanetra & Güsten, 2001: 4.
  • foreli. Strongylognathus huberi subsp. foreli Emery, 1924d: 286 (w.) ALGERIA. [First available use of Strongylognathus huberi subsp. huberi var. foreli Emery, 1909d: 709; unavailable name.] Subspecies of huberi: Kutter, 1923: 388. Raised to species: Bolton, 1976: 308. Junior synonym of afer: Sanetra & Güsten, 2001: 4.

Description

Female. Notably smaller than other species of the S. huberi group execpt S. caeciliae Forel, 1897 and S. minutus Radchenko, 1991. Head considerably smaller than in worker, mesosoma only slightly longer; female/worker thorax volume ratio (see Stille 1996) 2.1-2.2 as measured for samples from Nefza, J. Gora’a and Le Kef. Head nearly as wide as long, widest at eye level or somewhat posteriorly (eyes excluded) but lateral margin only very slightly convex (Fig. 1). Occipital corners rather rounded and posterior margin weakly concave. Scape when directed backwards fails to reach occipital margin by about 1½ times its greatest width. Eyes situated medially on head sides, somewhat bulging (greatest diameter 0.180-0.190mm). Head surface generally smooth and shining medially, almost without any sculpture in some specimens but shallow longitudinally striate over most of the surface in others. Lateral parts always longitudinally rugose with some anastomosing, posteriorly converging archedly to lateral ocelli. Pronotal corners rather angular, well visible from above. Propodeal teeth developed as short acute denticles, sometimes nearly absent. Mesoscutum with distinct longitudinal rugosity and weak microsculpture except for anterior central and posterior lateral portions, which are smooth and shiny, as are scutellum and metanotum except on their outermost parts (Fig. 2). Propodeum and often also lateral parts of mesosoma with well developed punctate-reticulate microsculpture and some rugae, especially around the pronotal corners. Petiolar nodes as in Fig. 3, surface largely covered with distinct microsculpture as on propodeum, weak to absent only around center of petiolus; rugosity scarce and indistinct if present at all. Body color dark blackish brown in fresh specimens, first gastral tergite and especially appendages lighter.

References

  • Bolton, B. 1976. The ant tribe Tetramoriini (Hymenoptera: Formicidae). Constituent genera, review of smaller genera and revision of Triglyphothrix Forel. Bull. Br. Mus. (Nat. Hist.) Entomol. 34: 281-379 (page 305, Revived status as species)
  • Dalla Torre, K. W. von. 1893. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. Vol. 7. Formicidae (Heterogyna). Leipzig: W. Engelmann, 289 pp. (page 130, Variety/race of huberi)
  • Emery, C. 1884a. Materiali per lo studio della fauna Tunisina raccolti da G. e L. Doria. III. Rassegna delle formiche della Tunisia. [part]. Ann. Mus. Civ. Stor. Nat. 21[=(2)(1): 373-384 (page 380, (footnote) queen described)
  • Emery, C. 1924f [1922]. Hymenoptera. Fam. Formicidae. Subfam. Myrmicinae. [concl.]. Genera Insectorum 174C: 207-397 (page 285, Revived status as species)
  • Forel, A. 1900h. Fourmis du Japon. Nids en toile. Strongylognathus Huberi et voisins. Fourmilière triple. Cyphomymrex Wheeleri. Fourmis importées. Mitt. Schweiz. Entomol. Ges. 10: 267-287 (page 279, worker described)
  • Forel, A. 1900h. Fourmis du Japon. Nids en toile. Strongylognathus Huberi et voisins. Fourmilière triple. Cyphomymrex Wheeleri. Fourmis importées. Mitt. Schweiz. Entomol. Ges. 10: 267-287 (page 279, Variety/race of huberi)
  • Medina, M. 1889. [Untitled. Introduced by: "El Sr. Medina leyó la nota siguiente."]. An. Soc. Esp. Hist. Nat. (Actas) 18: 31 (page 31, Variety/race of huberi)
  • Sanetra, M.; Güsten,, R. 2001. The socially parasitic ant genus Strongylognathus Mayr in North Africa (Insecta: Hymenoptera: Formicidae). Zootaxa 20: 1-20 PDF (page 4, Senior synonym of foreli)
  • Santschi, F. 1910d. Nouvelles fourmis de Tunisie (suite). Bull. Soc. Hist. Nat. Afr. Nord 1: 70-72 (page 71, male described)
  • Santschi, F. 1910d. Nouvelles fourmis de Tunisie (suite). Bull. Soc. Hist. Nat. Afr. Nord 1: 70-72 (page 71, Revived status as species)