Tetramorium carinatum

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Tetramorium carinatum
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Tetramorium
Species: T. carinatum
Binomial name
Tetramorium carinatum
(Smith, F., 1859)

Tetramorium carinatum casent0217962 p 1 high.jpg

Tetramorium carinatum casent0217962 d 1 high.jpg

Specimen Labels

Synonyms

Collections have been made in rainforest from wood (dead branch, rotting wood).

Identification

Bolton (1977) - The species most closely related to carinatum is Tetramorium aspersum, and their relationship appears to be close indeed. They are separable on details of cephalic sculpture which appear to be consistent and by the fact that they seem to be mutually exclusive as regards their respective ranges. Although this is based on relatively little material it is interesting to note that the known range of carinatum includes Sulawesi, New Guinea and the Aru Is whilst that of aspersum tends to be more easterly, occurring in the Philippines, Morotai I., Bismarck Archipelago and Solomon Is.

Distribution

Distribution based on Regional Taxon Lists

Indo-Australian Region: Indonesia (type locality), New Guinea, Philippines, Solomon Islands.


Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Worker

Nomenclature

The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • carinatum. Myrmica carinata Smith, F. 1859a: 148 (w.) INDONESIA (Aru I.). Combination in Xiphomyrmex: Donisthorpe, 1932c: 455; in Tetramorium: Bolton, 1977: 86. Senior synonym of aruensis, costatus, deficiens, flavescens: Bolton, 1977: 86.
  • costatus. Xiphomyrmex costatus Emery, 1897c: 587, pl. 15, fig. 26 (w.) NEW GUINEA. Junior synonym of carinatum: Bolton, 1977: 86.
  • deficiens. Xiphomyrmex costatus subsp. deficiens Emery, 1897c: 588 (w.) NEW GUINEA. Junior synonym of carinatum: Bolton, 1977: 86.
  • flavescens. Xiphomyrmex costatus subsp. flavescens Emery, 1897c: 588 (w.) NEW GUINEA. Mann, 1919: 348 (m.). Junior synonym of carinatum: Bolton, 1977: 86.
  • aruensis. Xiphomyrmex aruensis Karavaiev, 1935a: 105, fig. 24 (w.) INDONESIA (Aru I.). Junior synonym of carinatum: Bolton, 1977: 86.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

Worker

Bolton (1977) - TL 3.9-4.6, HL 0.92-1.00, HW 0.82-0.90, CI 86-93, SL 0.94-1.04, SI 109-119, PW 0.64-0.74, AL 1.16-1.24 (20 measured).

Mandibles usually very feebly striate, more rarely smooth. Antennal sea pes elongate, projecting beyond the occipital border when laid back in full-face view and with SI> 105. Antennal scrobes reduced to an impression bounded above by the frontal carinae and below by a strong longitudinal ruga but appearing quite distinctive as they lack any sculpture to the level of the posterior margin of the eye. Propodeal spines quite short (Fig. 3), generally feebly upcurved along their length. Metapleural lobes dentiform, usually narrow and acute but more rarely triangular. Peduncle of petiole long, the node in profile high and narrow. Sculpture on dorsum of head sparse, consisting anteriorly of a few longitudinal, widely spaced and strongly defined carina-like rugae. Posteriorly on the dorsum, behind the level of the eyes, these rugae tend to branch and to form cross-meshes so that a very loose and open rugoreticulum is present. The spaces between all these rugulae are smooth and unsculptured. Dorsal alitrunk loosely reticulate-rugose, the pedicel and gaster unsculptured. Colour uniform yellowish brown to light brown, often with the head and gaster darker in shade than the alitrunk.

Type Material

Bolton (1977) - LECTOTYPE worker, Indonesia: Aru Is (A. R. Wallace) (Oxford University Museum of Natural History), here designated [examined].

The following notes on V.A. Karavaiev type specimens have been provided by Martynov & Radchenko (2016) based on material held in the Institute of Zoology, Ukrainian Academy of Science:

Xiphomyrmex aruensis Karawajew, 1935.

Type locality(-ies): “Wammar, Aroe Archipel, 9.III.1913, W. Karawajew, Nr. 2567, Kolonie in eimen morschen Baumstamm, zahlreiche ww”.

Original Karawajew label(-s): “2567”.

Material: SYNTYPES, 11 w (newly mounted, IN 314/6/1), 128 w (in alcohol, IN 314/BAMS1/Karaw55).

References