Tetramorium obtusidens

Every Ant Tells a Story - And Scientists Explain Their Stories Here
Jump to navigation Jump to search
Tetramorium obtusidens
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Tetramorium
Species: T. obtusidens
Binomial name
Tetramorium obtusidens
Viehmeyer, 1916

Tetramorium obtusidens casent0280886 p 1 high.jpg

Tetramorium obtusidens casent0280886 d 1 high.jpg

Specimen Labels

A specimen was collected from a deciduous forest.



Distribution based on Regional Taxon Lists

Indo-Australian Region: Borneo, Indonesia, Malaysia, Philippines, Singapore (type locality).
Palaearctic Region: China.

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb




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

  • obtusidens. Tetramorium obtusidens Viehmeyer, 1916a: 138, fig. 6 (w.) SINGAPORE. See also: Bolton, 1977: 101; Bolton, 1979: 178.

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



Bolton (1979) - TL 2.4-2.7, HL 0.58-0.64, HW 0.49-0.54, CI 81-85, SL 0.38-0.42, SI 77-80, PW 0.34-0.38, AL 0.68-0.74 (8 measured).

With the general characters of the complex and of the bicarinatum-group to which it belongs, but with additional characters as follows. Frontal carinae less strongly developed than in Tetramorium adelphon or Tetramorium kydelphon, extending back beyond level of eye but weak, scarcely stronger than other cephalic rugulae. Maximum diameter of eye 0'12-0'14, about 0·25-0'27 x HW. Petiole node in dorsal view as broad or slightly broader than long. Dorsum of head irregularly longitudinally rugulose, with a reticulum occipitally. Dorsal alitrunk reticulate-rugulose but without a raised transverse carina at the promesonotal junction. Petiole dorsum with sparse rugulae, postpetiole dorsally with fine superficial punctulation, at most with only one or two very feeble longitudinal marks. Pilosity on dorsal surfaces of head and body much denser than in adelphon or kydelphon, the individual hairs finer and more flexuous than in those species. Colour pale yellow.

Type Material

Bolton (1977) - Syntype females, Singapore: Jurong Road (H. Overbeck) (Berlin Museum für Naturkunde der Humboldt-Universität) [examined].