Aenictus orientalis

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Aenictus orientalis
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Dorylinae
Genus: Aenictus
Species: A. orientalis
Binomial name
Aenictus orientalis
(Karavaiev, 1926)

Aenictus orientalis casent0916856 p 1 high.jpg

Aenictus orientalis casent0916856 d 1 high.jpg

Specimen Labels


A member of the ceylonicus group.

Key to Aenictus species groups


Distribution based on Regional Taxon Lists

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

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb



Known only from the worker caste.


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

  • orientalis. Eciton (Aenictus) ceylonicus subsp. orientalis Karavaiev, 1926d: 423, fig. 2 (w.) INDONESIA (Aru I.). Junior synonym of ceylonicus: Wilson, 1964a: 452. Revived from synonymy, raised to species and senior synonym of papuanus, similis: Shattuck, 2008c: 18.

The following taxonomic notes are offered by Shattuck (2008):

In this species the pronotal humeral angles are well developed, causing the anterodorsal surface of the pronotum to be nearly vertical, in dorsal view the area between the humeral angles is weakly convex to weakly concave. This is in contrast to the otherwise similar A. prolixus and A. turneri where the humeral angles are weakly developed and the anterodorsal section of the pronotum is gradually sloping, the area between the humeral angles being moderately convex. In addition, A. orientalis can be separated from A. prolixus by the shorter scapes (SI 65–82 vs. 89–96) and from A. turneri by the yellow head and legs which contrast with the yellow-red mesosoma (the body is essentially uniform in colour in A. turneri).

Type Material



  • Shattuck, S.O. (2008) Review of the ant genus Aenictus (Hymenoptera: Formicidae) in Australia with notes on A. ceylonicus (Mayr). Zootaxa 1926, 1–19.