Tetramorium kheperra

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Tetramorium kheperra
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Tetramorium
Species group: walshi
Species: T. kheperra
Binomial name
Tetramorium kheperra
(Bolton, 1976)

Tetramorium kheperra casent0901062 p 1 high.jpg

Tetramorium kheperra casent0901062 d 1 high.jpg

Specimen Labels

This is a widespread tramp species also recorded from Sumba and Prinsen [Panaitan] islands in Indonesia, Hong Kong and Assam (Bolton, 1976). Most of the specimens examined were collected in disturbed habitats. Workers were found in Kew Gardens (London) in 1974 among the roots of a plant imported from Assam (Bolton, 1967). This indicates that the species may be an underground nester. (Yamane and Jaitrong 2011)

Identification

Yamane and Jaitrong (2011) - Head with regular puncto-reticulation over dorsal surface. Antennal scrobe strongly developed. Clypeus with a median and a few lateral obliquely running carinae; anterior margin entire. Propodeal declivity extensively smooth and shiny, with two transverse carinae above. Propodeal spine acute, distinctly longer than propodeal lobes. Petiolar node in dorsal view slightly broader than long; with petiole in profile tergal portion of the node higher than long. Gastral tergite I entirely smooth and shining. Dorsum of body densely covered with branched hairs; hairs on gastral tergite 1 universally trifid, forming a dense pelt over surface.

This species is similar to two other species and the three can be separated using the following key:

1

  • Anterior clypeal margin weakly concave. Clypeus with one median and a few lateral carinae running longitudinally. Anterior portion of frons just behind clypeus not reticulate, with longitudinal rugulae only . . . . . Tetramorium polymorphum
  • Anterior clypeal margin straight or feebly convex. Clypeus with one longitudinal median carina and a few shorter and obliquely running carinae, or entirely reticulate. Dorsum of head almost entirely puncto-reticulate . . . . . 2

2

  • Clypeus with carinae, not reticulate. Propodeal declivity extensively smooth and shining, with a strong transverse carina between propodeal spine, and a weaker carina below it . . . . . Tetramorium kheperra
  • Clypeus reticulate. Upper half of propodeal declivity with several fine transverse carinae and mat . . . . . Tetramorium hasinae

Distribution

Distribution based on Regional Taxon Lists

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


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.

  • kheperra. Triglyphothrix kheperra Bolton, 1976: 349, fig. 71 (w.) INDONESIA (Java). Imai, Kubota, et al. 1985: 46 (k.). Combination in Tetramorium: Bolton, 1985: 247. See also: Yamane & Jaitrong, 2011: 63.

Description

Karyotype

  • 2n = 14 (Indonesia) (Imai et al., 1985).

References