Similar groove-headed ant

lives on ground
 

day active

Scientific name: Tetramorium simillimum

Size: 2-2.7 mm

Colour: yellowish to reddish pale brown

General description: this small ant is pale in colour

Habitat and nesting: the similar groove-headed ant is typically a ground dwelling species in open disturbed areas, around buildings and along the edges of forest tracks and roads. In its native range the ant may also make its nests in crevices of trees and in rotting wood. However, this nesting behaviour has not been reported in its invaded range.

Rate of spread: unknown.

Distribution: see our invasive ant distributions page for the worldwide distribution of the similar groove-headed ant.

Reproduction: no information found.

For detailed descriptions and identification of the simiar groove-headed ant:

PIAkey: Tetramorium simillimum (see diagnostic characters tab)

AntWeb: Tetramorium simillimum

 

Close-up of a similar groove-headed ant worker (© Eli Sarnat, Creative Commons Attribution, Share Alike CC BY-SA License)

Social, agricultural and environmental impacts of the similar-groove headed ant

Impacts of the similar groove-headed ant have not been well studied. As they can reach high densities in disturbed areas, they likely negatively affect native biodiversity.

Similar groove-headed ants foraging on peanut butter (© Eli Sarnat, Creative Commons Attribution, Share Alike CC BY-SA License)
 
Video of similar groove-headed ants foraging on peanut butter in Fiji, Vimeo video (© Eli Sarnat, Creative Commons Attribution, Share Alike CC BY-SA License)

Information sources

AntWiki, Similar groove-headed ant

Biosecurity New Zealand Invasive Ant Threat Information Sheet number 37, Similar groove-headed ant

Global Register of Introduced and Invasive Species (GRIIS)

PIAkey, Similar groove-headed ant

Content reviewed by Eli Sarnat June 2017

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