Tetramorium infraspinosum

Tetramorium infraspinosum
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Family:	Formicidae
Subfamily:	Myrmicinae
Tribe:	Crematogastrini
Genus:	Tetramorium
Species:	T. infraspinosum
Binomial name
Tetramorium infraspinosum Karavaiev, 1935

Nothing is known about the biology of Tetramorium infraspinosum.

Distribution

Distribution based on Regional Taxon Lists

Oriental Region: Vietnam (type locality).

Distribution based on AntMaps

Distribution based on AntWeb specimens

Check data from AntWeb

Countries Occupied

Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species.

Estimated Abundance

Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species.

Nomenclature

The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

• infraspinosum. Tetramorium infraspinosum Karavaiev, 1935a: 104 (w.) VIETNAM. See also: Bolton, 1977: 132.

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) - Abstracted from the original description: TL about 2.0. Head 1.16 times longer than broad (i.e. CI c. 86). Anterior clypeal margin entire. Occipital margin feebly concave, sides of head parallel, occipital corners moderately rounded. Frontal carinae directed to occipital corners [presumably reaching beyond level of eyes]. Scape failing to reach occiput by 2 x apical width. Eyes moderately large, in front of midlength of head. Propodeal spines triangular, acute, somewhat elevated; in dorsal view about as long as the distance separating them. Metapleural lobes twice as long as spines, triangular and acute. Petiole in profile with node rectangular, in dorsal view the node longer than broad. Postpetiole about 1.5 x broader than petiole in dorsal view. Head and alitrunk sharply and extensively reticulate-rugose. Dorsum of head longitudinally rugose with about 10-11 components, the spaces between them punctate. Alitrunk reticulate-rugose dorsally, punctate laterally. Petiole punctate with some weak rugae, postpetiole coarsely and irregularly longitudinally rugose. Gaster unsculptured. Erect hairs short, moderately developed. Yellow-rust coloured, gaster and appendages paler, yellowish.

Type Material

Holotype worker, Vietnam (= Cochinchine): Cauda, 10.x.1930, no. 5788 (K. Davydov) (location of type not known). I have not been able to find the holotype and only known worker of this species.

References

• Bolton, B. 1977. The ant tribe Tetramoriini (Hymenoptera: Formicidae). The genus Tetramorium Mayr in the Oriental and Indo-Australian regions, and in Australia. Bulletin of the British Museum (Natural History). Entomology. 36:67-151. (page 132, see also)
• Karavaiev, V. 1935a. Neue Ameisen aus dem Indo-Australischen Gebiet, nebst Revision einiger Formen. Treubia 15: 57-118 (page 104, worker described)
• Radchenko, A.G., Fisher, B.L., Esteves, F.A., Martynova, E.V., Bazhenova, T.N., Lasarenko, S.N. 2023. Ant type specimens (Hymenoptera, Formicidae) in the collection of Volodymyr Opanasovych Karawajew. Communication 1. Dorylinae, Poneromorpha and Pseudomyrmecinae. Zootaxa, 5244(1), 1–32 (doi:10.11646/zootaxa.5244.1.1).

References based on Global Ant Biodiversity Informatics

• Karavaiev V. 1935. Neue Ameisen aus dem Indo-Australischen Gebiet, nebst Revision einiger Formen. Treubia 15: 57-118.