Hypoponera juxta

AntWiki: The Ants --- Online
Hypoponera juxta
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Ponerinae
Tribe: Ponerini
Genus: Hypoponera
Species: H. juxta
Binomial name
Hypoponera juxta
Bolton & Fisher, 2011

Hypoponera juxta is known from a single worker.


Bolton and Fisher (2011) - Closely related to Hypoponera fatiga (and Hypoponera lassa); the contrast between their fine, superficial, closely packed, short cross-ribs and the long, strong, widely spaced, coarse cross-ribs of juxta, is striking. Also see Hypoponera jocosa.

A member of the abeillei group.

Keys including this Species


Latitudinal Distribution Pattern

Latitudinal Range: 8.704119° to 8.704119°.

Tropical South

Distribution based on Regional Taxon Lists

Afrotropical Region: Ethiopia (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.





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

  • juxta. Hypoponera juxta Bolton & Fisher, 2011: 65 (w.) ETHIOPIA.

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



Measurements: HL 0.56, HW 0.43, HS 0.495, SL 0.36, PrW 0.31, WL 0.71, HFL 0.34, PeNL 0.14, PeH 0.33, PeNW 0.24, PeS 0.237. Indices: CI 77, SI 84, PeNI 77, LPeI 42, DPeI 171.

Matching the description of fatiga and with indices in the same range, but size slightly larger (compare measurements). H. juxta is immediately distinguished from fatiga by the condition of the cross-ribs at the base of the cinctus of the second gastral tergite. In fatiga (and also in lassa) the cross-ribs are short, fine, delicately constructed and densely packed. In contrast, the cross-ribs of juxta are long and thick, coarse and very conspicuous, and are distinctly separated by broad, longitudinal spaces. In addition, in juxta the anterior and posterior faces of the petiole node in profile are almost parallel, only minutely convergent dorsally, and the maximum width of the first gastral tergite in dorsal view is equal to the width of the second tergite at its midlength (ca 0.38).

Type Material

Holotype worker. Ethiopia: Welega Region, Nekemte, between Nekemte & Gimbi (1350 m.) c/o Kolobo, 26.vii.2002, Museo Zoologico “La Specola”, num. MAG. 2484 (A. Sforzi & L. Bartolozzi) (MSNF).


References based on Global Ant Biodiversity Informatics

  • Bolton, B., and B. L. Fisher. "Taxonomy of Afrotropical and West Palaearctic ants of the ponerine genus Hypoponera Santschi (Hymenoptera: Formicidae)." Zootaxa 2843 (2012): 1-118.