Monomorium orangiae

AntWiki: The Ants --- Online
Monomorium orangiae
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Solenopsidini
Genus: Monomorium
Species: M. orangiae
Binomial name
Monomorium orangiae
Arnold, 1956

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Specimen Labels

Nothing is known about the biology of Monomorium orangiae.

Identification

Bolton (1987) - A member of the M. tchelichofi complex in the M. salomonis species group. Very close to Monomorium tchelichofi, orangiae is separated by its feebler alitrunk sculpture, unsculptured postpetiole node and more sharply defined lateral propodeal margins.

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Afrotropical Region: South Africa (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.

  • orangiae. Monomorium (Xeromyrmex) orangiae Arnold, 1956: 67, fig. 16, 16a (w.) SOUTH AFRICA.
    • Type-material: holotype worker, 23 paratype workers.
    • Type-locality: South Africa: Orange River, Kakamas, 3.xii.1953 (R.H.N. Smithers).
    • Type-depositories: SAMC (holotype); BMNH, SAMC (paratypes).
    • Status as species: Ettershank, 1966: 91; Bolton, 1987: 354 (redescription); Bolton, 1995b: 265.
    • Distribution: South Africa.

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 3.7-4.0, HL 0.92-0.98, HW 0.76-0.80, CI 81-83, SL 0.78-0.79, SI 98-102, PW 0.44-0.48, AL 1.02-1.06 (3 measured).

Anterior margin of median portion of clypeus broadly and evenly concave. With the head in full-face view the sides evenly convex, broadest at the midlength and converging anteriorly and posteriorly. Maximum diameter of eye 0.21-0.22 x HW and with 10-12 ommatidia in the longest row, the eyes appearing small on the sides of the relatively massive broad head. Outline of promesonotum in profile shallowly convex, the mesonotum sloping posteriorly to the distinctly impressed metanotal groove. Propodeum fiat to shallowly transversely concave dorsally, the dorsum separated from the sides by conspicuous narrowly rounded margins. Petiole node cuneate in profile, narrowly rounded dorsally. In dorsal view both nodes narrow and strongly transverse, much broader than long. Cephalic dorsum with 2-3 pairs of hairs straddling the midline behind the level of the frontal lobes; without hairs close to the occipital corners. Dorsal alitrunk without standing hairs. Petiole with one pair and postpetiole with 1-2 pairs of backward directed hairs. First gastral tergite with 2-3 pairs of hairs in front of the apical transverse row. Head smooth, unsculptured except for vestigial superficial reticular patterning; promesonotal dorsum similarly sculptured. Propodeal dorsum with very feeble reticulate-shagreenate sculpture or only vestigially shagreenate. Node of postpetiole unsculptured dorsally, the first gastral tergite unsculptured or with fine superficial reticular patterning. Colour uniform glossy dark brown.

Type Material

Bolton (1987) - Paratype workers, South Africa: Orange River, Kakamas, 3.xii. 1953 (R. H. N. Smithers) (The Natural History Museum) [examined].

References

References based on Global Ant Biodiversity Informatics

  • Arnold G. 1956. New species of African Hymenoptera. No. 12. Occasional Papers of the National Museum of Southern Rhodesia. B. Natural Sciences. 3: 52-77.
  • Ettershank G. 1966. A generic revision of the world Myrmicinae related to Solenopsis and Pheidologeton (Hymenoptera: Formicidae). Aust. J. Zool. 14: 73-171.