Aenictus susanae

AntWiki: The Ants --- Online
Aenictus susanae
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Dorylinae
Genus: Aenictus
Species group: koloi
Species: A. susanae
Binomial name
Aenictus susanae
Gomez, 2022

Aenictus susanae CASENT0406728 F22b.jpg

Identification

Gómez (2022) - A member of the Aenictus koloi species group. Unmistakable species due to its strong, deep sculpture and dense, long, reclined pilosity. This species is in fact the most heavily sculptured in the Afrotropical region, with a deep clearly defined reticule even overhead and legs.

Keys including this Species

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: 3° to 3°.

 
North
Temperate
North
Subtropical
Tropical South
Subtropical
South
Temperate
  • Source: Gomez, 2022

Distribution based on Regional Taxon Lists

Afrotropical Region: Cameroon, Central African Republic (type locality).

Distribution based on AntMaps

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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.
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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.
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Biology

Castes

Known from the worker caste. Table of castes known for all Afrotropical Aenictus species.

Gómez 2022. Figure 22C-D, CASENT0406728.

Nomenclature

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

  • susanae. Aenictus susanae Gómez, 2022: 38, figs. 2D, 22A-D, 23 (w.) CENTRAL AFRICAN REPUBLIC.

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

Description

Worker

HL: 0.83 [0.80-0.87]; HW: 0.73 [0.70-0.79]; SL: 0.60 [0.57-0.62]; WL: 1.30 [1.24-1.39]; PH: 0.24 [0.21-0.26]; PPRO: 0.12 [0.10-0.14]; CI: 88 [83-92]; SIL: 72 [69-75]; SIW: 82 [78-86]; WL/HW: 177 [170-185] (n=15).

With the characters defined for the koloi group and: funicular segments 1-8 subquadrate, the apical twice longer than wide. Head slightly convex laterally widest at the mandibular insertion and narrowing to the concave occipital line; ventrolateral margin reaching ventrally more than two thirds the distance to the mandibular insertions. Mandibles with a long, sharp apical tooth followed by a series of 10–12 denticles.

Petiole with anterolateral, anterodorsal, dorsolateral, posterolateral posterodorsal carinae present and developed, the dorsolateral as a horizontal ridge from anterior to almost posterior ridges, above the petiolar spiracle. In lateral view petiolar node subelliptical, low, with a truncated vertical posterior face; postpetiole in lateral view rounded, elliptical to hemispherical. Subpetiolar process very developed, with a bulk elliptical and low, followed by a rectangular long narrow lamella facing forward at 45 degrees, from digitiform to elliptical; the whole process clearly larger than the prora.

Whole body including legs and antennae deeply reticulated; some (2–6) horizontal rugae present on the mesopleura which continue as horizontal striae on the lower fourth of the metapleura, the uppermost just below the metapleural gland, converging to the spiny metapleural lobe; gaster glassy smooth. Overall colour dark brown, gaster yellowish brown; metatibial gland yellowish, conspicuous.

Whole body covered with long, white, abundant decumbent to semierect reclined setae, those on head, mesosoma and gaster with length about petiole height, those and legs and scapes slightly shorter, but clearly longer than femora or scape width.

Type Material

  • Holotype worker, CENTRAL AFRICAN REPUBLIC: • Sangha-Mbaéré, Parc National Dzanga-Ndoki, Mabéa Bai, 21.4 km 53° NE Bayanga 510 m, 3.03333, 16.41 01-07/05/2001. MW 50 sample transect, 5m (B.L. Fisher) rainforest, sifted litter (leaf mold, rotten wood) (1w) [CASENT0406729] California Academy of Sciences.
  • Paratype workers: • same series (3 pins, 1w each) [CASENT0406728, CASENT0406731, CASENT0406732].

Etymology

The species name susanae is a latinized noun of feminine gender in the genitive case. Dedicated to my wife, Susana.

References