Monomorium ebangaense

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Monomorium ebangaense
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Solenopsidini
Genus: Monomorium
Species: M. ebangaense
Binomial name
Monomorium ebangaense
Santschi, 1937
Synonyms

Nothing is known about the biology of Monomorium ebangaense.

Identification

Bolton (1987) - Monomorium ebangaense is closest to Monomorium notulum and Monomorium setuliferum, and should not be confused with any member of the bicolor-complex except superficially perhaps with Monomorium rufulum, because that species shows a reduced basal tooth on the mandible as does ebangaense. M. rufulum, however, has very long strong ammochaete hairs ventrally on the head, is larger (HW 0·59-0·70), has a much narrower head and longer scapes (CI 75-80, SI 112-120), has eyes situated at the midlength of the sides (Fig. 42), and has the first gastral tergite densely hairy.

M. nyasae, synonymized with ebangaense, shows only a slight variation in colour. The former is dull yellow, varying in shade over the body, whilst the latter is dull brownish yellow on the head and alitrunk, and blackish brown on the gaster.

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Afrotropical Region: Angola (type locality), Malawi.

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.

  • ebangaense. Monomorium (Xeromyrmex) bicolor st. ebangaense Santschi, 1937d: 225, figs. 17-19 (w.) ANGOLA. Raised to species and senior synonym of nyasae: Bolton, 1987: 367.
  • nyasae. Monomorium (Xeromyrmex) nyasae Arnold, 1946: 63, fig. 14 (w.) MALAWI. Junior synonym of ebangaense: Bolton, 1987: 367.

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

Description

Worker

Bolton (1987) - TL 2.5-2.7, HL 0.60-0.64, HW 0.54-0.57, CI 88-90, SL 0.46-0.50, SI 84-88, PW 0.34-0.37, AL 0.70-0.74 (5 measured).

Very close indeed to Monomorium notulum and matching the description given for that species, but the eyes averaging slightly smaller, maximum diameter 0.23-0.26 x HW (as opposed to 0.25-0.28 x HW in notulum). Otherwise ebangaense and notulum differ only by the minor sculptural characters noted in the key. On the whole ebangaense has more sharply defined and intense cephalic and pronotal sculpture than notulum, where it appears amorphous or smeared. This apparent difference in sculpture may well be a gradient character and hence unreliable, but as material is in short supply the two may be kept separate for the present. I suspect that further collecting will see ebangaense and its junior synonym Monomorium nyasae, fall into the synonymy of notulum.

Type Material

Bolton (1987) - Holotype worker, Angola: Ebanga, 1932-33, no. 142 (A. Monard) (CdF) [examined].

References