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Species: Crematogaster sabatra   Blaimer, 2010 

Classification:
Download Data

Taxonomic History (provided by Barry Bolton, 2018)

Crematogaster sabatra Blaimer, 2010 PDF: 28, figs. 34, 40 (w.) MADAGASCAR. Malagasy. Primary type information: Madagascar, P.N. Befotaka–Midongy, -23.84080, 46.95750, 1250m, beating low vegetation, montane rainforest, 17.–19.xi.2006, coll. B.L.Fisher et al., BLF15075; CASENT0193162; CASC. AntCat AntWiki HOL

Distribution:

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

Distribution Notes:

MADAGASCAR
Crematogaster sabatra
is known only from a few localities in Madagascar: the P.N. Andringitra, P.C. Ankazomivady, P.N. Befotaka-Midongy and R.S. Kalambatritra. All of these localities are mountainous regions in the southern Central Region and harbour mid-elevation to montane rainforest; Crematogaster sabatra has been collected only from elevations of 1250 m and above (up to 1700m).

Biology:

Little information exists on the biology of Crematogaster sabatra. Workers of this species were mostly collected while beating vegetation and through other ground sampling methods. On a few occasions colonies were found in dead branches or twigs and carton nests, but queens or males were not collected and remain unknown. It seems likely that C. sabatra shares a very similar arboreal lifestyle as the rest of the Malagasy Decacrema.

Identification:

  • Antennae 10-segmented
  • Mesonotum postero-laterally distinctly angular to tuberculate
  • Promesonotal suture usually incomplete
  • Large to very large species (HW 1.151.31,WL 1.201.34)
  • Propodeal spines medium to large size, usually with SPI > 0.22
  • Head and promesonotal sculpture aciculate, reticulate to weakly costulate
  • Uncommon

Comments:

Crematogaster sabatra is very closely related to the Crematogaster hova-complex, from which it can be distinguished by size, the angular postero-lateral character of the mesonotum and the reduced sculpture. This species is further morphologically very similar to Crematogaster mahery, from which it can be separated in the overlapping distribution range by the more pronounced sculpture and the incomplete promesonotal suture.

References:

Blaimer, B. B. (2010) Taxonomy and Natural History of the Crematogaster (Decacrema) group in Madagascar. Zootaxa, 2714, 1-39.

Specimen Habitat Summary

Found most commonly in these habitats: 13 times found in montane rainforest, 1 times found in disturbed montane rainforest, 3 times found in rainforest, 1 times found in montane ravine forest.

Found most commonly in these microhabitats: 5 times on low vegetation, 1 times sifted litter (leaf mold, rotten wood), 1 times ex dead branch above ground, Bamboo, 1 times ex carton nest, 1 times ground forager(s).

Collected most commonly using these methods: 3 times beating low vegetation, 1 times MW 50 sample transect, 5m, 1 times pitfall trap, PF 50 tube sample transect, 5m, 1 times Beat 25 sample transect, 10m, beating low vegetation, 1 times Malaise trap.

Elevations: collected from 317 - 1700 meters, 1232 meters average

Type specimens: Holotype of Crematogaster sabatra: casent0193162



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