Tetramorium diligens

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Tetramorium diligens
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Tetramorium
Species: T. diligens
Binomial name
Tetramorium diligens
(Smith, F., 1865)

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Specimen Labels

Synonyms

Nothing is known about the biology of Tetramorium diligens.

Identification

Bolton (1977) - This distinctive species appears closest related to Tetramorium carinatum but in that species the head is broader, the scapes shorter, the integument more densely sculptured and the meta pleural lobes are dentiform.

Two other New Guinea species, Tetramorium bicolor and Tetramorium tricarinatum, have the same distinctive coloration as diligens, but both of these species belong to the bicarinatum-group and hence have 12-segmented antennae and a dentiform sting-appendage.

Distribution

Distribution based on Regional Taxon Lists

Indo-Australian Region: New Guinea (type locality).


Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Nomenclature

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

  • diligens. Myrmica diligens Smith, F. 1865: 73 (w.) NEW GUINEA. Combination in Xiphomyrmex: Donisthorpe, 1932c: 473; in Tetramorium: Bolton, 1977: 87. Senior synonym of diligentissima: Bolton, 1995b: 407.
  • diligentissima. Pheidole diligentissima Dalla Torre, 1892: 90. [Unnecessary replacement name for diligens Smith, above.] Junior synonym of diligens: Bolton, 1995b: 407.

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 3.8-3.9, HL 0.92-0.94, HW 0.74-0.78, CI 80-83, SL 0.96-1.00, SI 128-129, PW 0.62-0.66, AL 1.12 (2 measured).

Mandibles very feebly striate; antennal scapes long, SI> 120. Frontal carinae extended back only tothe level of the posterior margin of the eye and terminating in this vicinity. Scrobes virtually non-existent, merely a very shallow impression below the frontal carinae. Propodeal spines stout and very long, the metapleural lobes very reduced, low and broadly rounded, not dentiform, scarcely or not visible when the alitrunk is viewed in profile. Peduncle of petiole long, the node high and narrow in profile with a concave anterior face (Fig. 4). Dorsum of head mostly unsculptured, with one or two short rugulae between the frontal carinae, the median cephalic carina fading out posteriorly. Vertex unsculptured, smooth and shining. Dorsal alitrunk with a few coarse and widely spaced rugae, pedicel and gaster unsculptured. Bicoloured, the head and gaster blackish brown, the alitrunk, legs and antennae yellow. In the Syntypes the petiole is yellow-brown, the postpetiole darker, almost as dark as the gaster.

Type Material

Bolton (1977) - Syntype workers, New Guinea (A. R. Wallace) (Oxford University Museum of Natural History; The Natural History Museum) [examined].

The following notes on F. Smith type specimens have been provided by Barry Bolton (details):

Myrmica diligens

One worker syntype in Oxford University Museum of Natural History, one worker syntype in The Natural History Museum. Both labelled “N” (= New Guinea).

References