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Species: Tetramorium pusillum   Emery, 1895 

Classification:
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Taxonomic History (provided by Barry Bolton, 2020)

Tetramorium pusillum Emery, 1895i PDF: 38 (w.q.) SOUTH AFRICA. Afrotropic. AntCat AntWiki HOL

Taxonomic history

Senior synonym of Tetramorium ladismithensis, Tetramorium tablensis: Bolton, 1980 PDF: 318.

Taxon Page Images:

Tetramorium pusillum. Intaka Island, Cape Town, South Africa; 6 January 2017. Photo © and collection by Philip Herbst.

Distribution:

  Geographic regions (According to curated Geolocale/Taxon lists):
    Africa: South Africa, Tunisia
  Biogeographic regions (According to curated Bioregion/Taxon lists):
    Afrotropical, Palearctic

Taxonomic Treatment (provided by Plazi)

Treatment Citation: Emery, C., 1895, Voyage de M. E. Simon dans l'Afrique australe (janvier-avril 1893). 3 e mémoire. Formicides., Annales de la Société Entomologique de France 64, pp. 15-56

T. pusillumHNS, n. sp.

- Ferrugineo-testacea, capite obscuro, abdomine piceo, puis subclavatis parce conspersa, pedibus breviter pubescentibus, capite subrectangulari, laminis frontalibus subrectis, fere usque ad marginem posticum productis, confertim punctato, genis antice et fronte subtiliter longitrorsum costulatis, mandibulis nitidis, punctatis, Ihorace hand marginato, dorso continuo, longitrorsum rugoso-punctulato, metanoto utrinque obtuse bidentata, pedunculi punctati segmento 1 ° cum nodo superne angulato, parum longiore quam crassiore, 2 ° subgloboso, reliquo abdomine nitido. - Long. 1 3 / 4 mill.

[[ queen ]]. Picea, mandibulis, antennis, pedibus anoque testaceis, capite pedunculoque ut in [[ worker ]] sculptis, mesonoto et scutello longitrorsum striatis, metanolo acute bidentato, petiolo magis robusto, segmento 2 ° transversim ovato. - Long. 2 1 / 2 mill. - Cape Town.

On dirait a premiere vue un tout petit T. caespitumHNS, mais les aretes frontales prolongees jusqu'a, petite distance du bord posterieur de la tete et limitant un long sillon antennaire finement pointille constituent une difference importante. La femelle est bien plus petite que celle des plus petites varietes de T. caespitumHNS. La forme du pedicule est assez exactement la meme que chez T. caespitumHNS, mais, chez l'ouvriere, il est plus etroit et le 1 er n oe ud plus eleve et plus nettement anguleux sur le profil.

Specimen Habitat Summary

Found most commonly in these habitats: 1 times found in Regenerated mesic montane fynbos flat land, 2 times found in Fynbos - mesic montane fynbos on NE rocky slope, 1 times found in Fynbos - broad-leaved valley bush, 2 times found in Fynbos - mesic montane fynbos on sandstone, 2 times found in garden, 1 times found in Renosterveld, 1 times found in Fogging of Tree canopy. Southern Afrotemperate Forest ., 1 times found in Riverine, 1 times found in Fynbos, 1 times found in sand, garden, ...

Found most commonly in these microhabitats: 1 times ground, partly under rock, partly underground, mites, in garden in leaf litter below shrubs.

Collected most commonly using these methods: 7 times Pitfall Trap, 7 times turning over rocks, 1 times By Hand, 1 times Nest, 1 times Winkler Bag.

Elevations: collected from 120 - 840 meters, 280 meters average

Collect Date Range: collected between 1912-10-01 and 2016-11-30

Type specimens: syntype: casent0280862; syntype of Tetramorium caespitum ladismithensis: casent0901222; syntype of Tetramorium pusillum: casent0904833; syntype of Tetramorium pusillum tablensis: casent0901223; syntype of Tetramorium caespitum ladismithensis: casent0909148; syntype of Tetramorium pusillum tablensis: casent0909145



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