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Species: Nesomyrmex simoni   (Emery, 1895) 

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Taxonomic History (provided by Barry Bolton, 2019)

Tetramorium simoni Emery, 1895i PDF: 35, pl. 2, fig. 22 (w.) SOUTH AFRICA. Afrotropic. AntCat AntWiki HOL

Taxonomic history


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

Taxonomic Treatment (provided by Plazi)

Treatment Citation: Mbanyana, N. & Robertson, H. G., 2008, Review of the ant genus Nesomyrmex (Hymenoptera: Formicidae: Myrmicinae) in southern Africa., African Natural History 4, pp. 35-55

Nesomyrmex simoniHNS (Emery, 1895)

Fig. 1m -o

Tetramorium simoni EmeryHNS, 1895b: 35. For type information and synonyms, see Bolton (1982).

Description of worker

HL 0.924-1.021, HW 0.783-0.884, HW1 0.850-0.915, CI 83-87, SL 0.649-0.688, SI 78-83, PW 0.615-0.672, ML 1.168-1.268, EL 0.258-0.266, EI 29-33 (3 of 3 measured).

Description matches that of Bolton (1982) except for a few additional characters: promesonotal dorsum with scattered short erect hairs, petiolar node with a pair of subdecumbent hairs and a pair of subdecumbent hairs on the postpetiole; sparse pubescence present.


Nesomyrmex simoniHNS looks similar to N. braunsiHNS and N. saasveldensisHNS in that they all have rugo-reticulate petiolar node and rugo-reticulate sculpture is usually also evident partially or completely on head and mesosoma. It is recognized from N. braunsiHNS by its smaller size (HW 0.783- 0.884 versus 1.033-1.109), and armed propodeum (versus unarmed). It is distinguished from N. saasveldensisHNS by lacking hairs on the propodeum.


Specimens have been collected from pitfall traps in savanna: Pilanesberg Mountain Bushveld (Mucina & Rutherford 2006) vegetation.

Material examined South Africa: North West Province: Pilanesberg

Nature Reserve (Tlou Drive), 25°15'S 27°04'E, Pediment grassland, pitfall, 20-26 October 1998, C.L. Parr, SAM-HYM-C 016651; Pilanesberg Nature Reserve (Mankwe Way), 25°16'S 27°08'E, Pediment grassland, pitfall, 20-26 October 1998, C.L. Parr, SAM-HYM-C016653 & SAM-HYM-C 016652.

Specimen Habitat Summary

Found most commonly in these habitats: 4 times found in Lydenburgia - Euclea Open Woodland (in Sekhukhune Mountain Bushveld), 2 times found in Protea - Tristachya Open Woodland (in Sekhukhune Mountain Bushveld), 2 times found in Sclerocarya - Bolusanthus Open Woodland (in Sekhukhune Mountain Bushveld), 2 times found in Euclea-Seersia Open Shrubland (in Sekhukhune Plains Bushveld).

Collected most commonly using these methods: 8 times Hand collected, 2 times Pitfall trap.

Elevations: collected from 100 - 1255 meters, 915 meters average

Type specimens: Lectotype of Nesomyrmex simoni: casent0904790

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