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Species: Tetramorium andrei   Forel, 1892 

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Taxonomic History (provided by Barry Bolton, 2022)

Tetramorium (Xiphomyrmex) andrei Forel, 1892o PDF: 263 (w.) MADAGASCAR. Malagasy. Primary type information: Primary type material: lectotype worker (by designation of Hita Garcia & Fisher, 2012b PDF: 26). Primary type locality: Madagascar: ville d’ Anosibé (prov. Bezanozano), ESE Antananarivo (Sikora). Primary type depository: MHNG. Primary type specimen: CASENT0101821. Secondary type information: Secondary type material: 2 paralectotype workers. Secondary type locality: same as for holotype. Secondary type depository: MHNG. Type notes: Published locality as above, but data labels on type-material have “Nosibé, Village de l’Imerina”; discrepancy discussed in Hita Garcia & Fisher, 2012b PDF: 26. AntCat AntWiki

Taxonomic history

Lectotype designation: Hita Garcia & Fisher, 2012b PDF: 26.
Combination in Xiphomyrmex: Wheeler, 1922: 1031.
Combination in Tetramorium: Bolton, 1979 PDF: 143.
Status as species: Dalla Torre, 1893 PDF: 130; Wheeler, 1922: 1031; Emery, 1924f PDF: 287; Bolton, 1979 PDF: 143 (redescription); Bolton, 1995b: 404; Hita Garcia & Fisher, 2012b PDF: 26 (redescription).
// Distribution


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

Taxonomic Treatment (provided by Plazi)

Treatment Citation: Bolton, B., 1979, The ant tribe Tetramoriini (Hymenoptera: Formicidae). The genus Tetramorium Mayr in the Malagasy region and in the New World., Bulletin of the British Museum (Natural History) Entomology 38, pp. 129-181

Tetramorium andrei ForelHNS

(Fig. 14)

Tetramorium {Xiphomyrmex) andrei ForelHNS, 1891 b: 263. Syntype workers, Madagascar: Bezanozano nr Nosibe, ESE. of Antananarivo (Sikora) (MHN, Geneva) [examined].

Worker. TL 4.3 - 4.8, HL 1.04 - 1.08, HW 0.92 - 0.96, CI 87 - 90, SL 0.80 - 0.84, SI 86 - 89, PW 0.70 - 0.72, AL 1.30 - 1.34 (6 measured).

Mandibles striate; median clypeal carina acute. Frontal carinae long and strong, diverging towards the occipital corners behind the level of the eyes but merging into the sculpture before reaching the occipital margin. Antennal scrobes a groove capable of containing the scape. Metanotal groove absent, not impressed in profile. Propodeal spines long and acute, the metapleural lobes short and triangular. Petiole node in profile longer than high, flat-topped or feebly convex dorsally, in dorsal view as long as or longer than broad. Dorsum of head regularly longitudinally rugose; dorsal alitrunk similarly sculptured but with some reticulation towards the sides on the pronotum. Petiole and postpetiole with rugose sculpture which is predominantly longitudinal. Gaster unsculptured except for pits from which hairs arise; these are more conspicuous in some specimens than in others. Dorsal surfaces of head and body all with numerous long, fine, erect to suberect hairs. Leading edges of antennal scape with suberect short, curved hairs. Colour light red-brown.

Of the tortuosum-group species on Madagascar andreiHNS is most closely related to robustiorHNS, originally described as an infraspecific variant of andreiHNS, and rather more distantly to latreilleiHNS and kelleriHNS. Differences from robustiorHNS are listed under that species. T. andreiHNS is distinguished easily from latreilleiHNS as the latter lacks hairs on the first gastral tergite and does not have standing hairs on the antennal scapes. T. kelleriHNS, on the other hand, has abundant long hairs, the longest on the scapes being much greater than the maximum scapai width. Also, the node shape of the petiole is radically different, compare Figs 13 and 14.

Material examined

Madagascar: no loc. (Staudinger); no loc. (ex coll. Mayr); Ampasimbe, prov. Tamatave (J. M. Betsch).

Specimen Habitat Summary

Found most commonly in these habitats: 77 times found in rainforest, 50 times found in montane rainforest, 10 times found in rainforest, transition to montane forest, 4 times found in littoral rainforest, 1 times found in littoral forest, 3 times found in transition humid forest, 5 times found in montane forest, 1 times found in montane ravine forest, 1 times found in montane rainforest, marsh edge.

Found most commonly in these microhabitats: 43 times sifted litter (leaf mold, rotten wood), 49 times ex rotten log, 9 times sifted litter, 4 times ground forager(s), 4 times ex rotten stick on ground, 1 times ex root mat, ground layer, 3 times ex soil, 1 times ex rotting tree stump, 1 times under rootmat, litter on rock, 1 times under moss on live tree, 1 times ground nest, ...

Collected most commonly using these methods: 15 times MW 50 sample transect, 5m, 7 times MW 25 sample transect, 5m, 5 times 10 MaxiWinks, mixed samples, 3 times 10 maxi winks, 6 times 9 MaxiWinks, mixed samples, 5 times 03 MaxiWinks, mixed samples, 1 times 7 MaxiWinks, 6 times pitfall trap, PF 50 tube sample transect, 5m, 2 times 9 Maxi winklers, 3 times MW 75 sample transect, 5,10m, 1 times 8 maxi winks, ...

Elevations: collected from 10 - 1625 meters, 736 meters average

Collect Date Range: collected between 1990-11-17 00:00:00.0 and 2017-01-11 00:00:00.0

Type specimens: Lectotype of Tetramorium andrei: casent0101821; paralectotype of Tetramorium andrei: casent0101281, casent0101282; syntype of Tetramorium robustior: casent0101279, casent0101280

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