Monomorium angustinode

AntWiki: The Ants --- Online
Monomorium angustinode
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Solenopsidini
Genus: Monomorium
Species: M. angustinode
Binomial name
Monomorium angustinode
Forel, 1913

Monomorium angustinode casent0902246 p 1 high.jpg

Monomorium angustinode casent0902246 d 1 high.jpg

Specimen Labels

Nothing is known about the biology of Monomorium angustinode.

Identification

Bolton (1987) - A member of the M. altinode complex in the M. monomorium species group. Distinguished from all its close relatives by the shape of the propodeum and structure of the propodeal spiracles.

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Afrotropical Region: Democratic Republic of Congo (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

Nomenclature

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

  • angustinode. Monomorium angustinode Forel, 1913b: 334 (w.) DEMOCRATIC REPUBLIC OF CONGO.
    • Type-material: syntype workers (number not stated).
    • Type-locality: Democratic Republic of Congo (“Congo belge”): Katanga, Welgelegen, 14.vi.1912, no. 123 (Bequaert).
    • Type-depositories: BMNH, MHNG, MRAC.
    • Status as species: Emery, 1922e: 171; Wheeler, W.M. 1922a: 863; Ettershank, 1966: 87; Bolton, 1987: 376 (redescription); Bolton, 1995b: 259.
    • Distribution: Democratic Republic of Congo.

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 1.9-2.0, HL 0.52-0.54, HW 0.39-0.40, CI 74-77, SL 0.36, SI 90-92, PW 0.26-0.28, AL 0.54-0.58 (6 measured).

Clypeal carinae well defined, widely separated and divergent anteriorly, terminating at the anterior clypeal margin in a pair of short projecting denticles. Anterior margin of prominent median portion of clypeus shallowly concave between the pair of short denticles, the latter separating the anterior and lateral margins of the median clypeus. Margin usually with a small indentation at socket of median seta. Maximum diameter of eye 0.24-0.26 x HW and with 7-8 ommatidia in the longest row. In ful1-face view the eyes distinctly in front of the midlength of the side and the antennal scapes, when laid straight back from their insertions, failing to reach the occipital margin. Occipital margin broad in full-face view, the sides straight to feebly convex behind the level of the eyes. Promesonotal dorsum shallowly convex in profile, the mesonotum sloping evenly to the narrow but distinctly impressed metanotal groove. Cross-ribs of metanotal groove short. Propodeal dorsum with a short convex portion immediately behind the metanotal groove, the surface then sloping evenly backwards; the dorsum and declivity forming a single curve, the two not obviously separated. Propodeal spiracle small and placed high on the side of the sclerite. In dorsal view the spiracular orifices prominent, born at the apices of a pair of low tubercles, the dorsum between them broad and almost fiat. Petiole high and narrow, scale-like and narrowly rounded above. Subpetiolar process a narrow inconspicuous strip. Post petiole anteroposteriorly compressed, lower than the petiole and slightly more broadly rounded above, but with a high vertical anterior face. All dorsal surfaces of head and body with standing hairs present, the promesonotum apparently with 4-5 pairs though all specimens available show signs of abrasion. Apart from small hair-pits and the feeble cross-ribs at the metanotum the entirety of the head and body is devoid of sculpture. Colour light brownish yellow, the head and gaster tending to be somewhat darker than the alitrunk.

Type Material

Bolton (1987) - Syntype workers, Zaire: Katanga (= Shaba), Welgelegen, 14.vi.1912, no. 123 (Bequaert) (Musee d'Histoire Naturelle Genève; The Natural History Museum; Musee Royal de I' Afrique Centrale) [examined].

References

References based on Global Ant Biodiversity Informatics

  • Bolton B. 1987. A review of the Solenopsis genus-group and revision of Afrotropical Monomorium Mayr (Hymenoptera: Formicidae). Bulletin of the British Museum (Natural History). Entomology 54: 263-452.
  • Braet Y., and B. Taylor. 2008. Mission entomologique au Parc National de Pongara (Gabon). Bilan des Formicidae (Hymenoptera) recoltes. Bulletin S. R. B. E./K.B.V.E. 144: 157-169.
  • Forel A. 1913. Formicides du Congo Belge récoltés par MM. Bequaert, Luja, etc. Revue Zoologique Africaine (Brussels). 2: 306-351.