(Smith, F., 1877)
Ward (1989) - Workers and queens possess a broad head with relatively small eyes; a flattened and laterally marginate pronotum; a more or less apendunculate petiole, much longer than high or wide, whose dorsal face is also flattened and laterally margined; very fine, pale, inconspicuous pilosity; and a bicolored body (orange petiole contrasting with dark brown head and gaster; remainder of body variably infuscated). An additional characteristic feature of the worker is the virtual obliteration of the metanotal groove, the mesonotum and propodeum forming a continuous, elevated, and laterally compressed plate.
Known only from Guatemala and southern Mexico (Ward 1989).
Distribution based on Regional Taxon Lists
Distribution based on AntMaps
Distribution based on AntWeb specimens
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The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.
- rufomedius. Pseudomyrma rufomedia Smith, F. 1877b: 66 (q.) GUATEMALA. Combination in Pseudomyrmex: Wheeler, G.C. & Wheeler, J. 1956: 386. Senior synonym of stolli: Ward, 1989: 443. See also: Kempf, 1960a: 7.
- stolli. Pseudomyrma stolli Forel, 1912g: 20 (w.q.m.) GUATEMALA. Combination in Pseudomyrmex: Kempf, 1972a: 224. Junior synonym of rufomedius: Ward, 1989: 443.
Syntype alate queen (unique). Aceituno, Guatemala (The Natural History Museum) [Examined].
Pseudomyrma stolli Forel, 1912:20. Syntype worker, queens, male, Retalhuleu, Guatemala (Stoll) (Musee d'Histoire Naturelle Genève) [Examined].
The P. rufomedius type, although lacking a head, agrees closely with the worker-associated queens of P. stolli (and other material which I have examined), and there can be no doubt about the identity of the species (cf. Perrault, 1987).
- Kempf, W. W. 1960a. Estudo sôbre Pseudomyrmex I. (Hymenoptera: Formicidae). Rev. Bras. Entomol. 9: 5-32 (page 7, see also)
- Smith, F. 1877b. Descriptions of new species of the genera Pseudomyrma and Tetraponera, belonging to the family Myrmicidae. Trans. Entomol. Soc. Lond. 1877: 57-72 (page 66, queen described)
- Ward, P. S. 1989a. Systematic studies on pseudomyrmecine ants: revision of the Pseudomyrmex oculatus and P. subtilissimus species groups, with taxonomic comments on other species. Quaest. Entomol. 25: 393-468 (page 443, Senior synonym of stolli)
- Wheeler, G. C.; Wheeler, J. 1956. The ant larvae of the subfamily Pseudomyrmecinae (Hymenoptera: Formicidae). Ann. Entomol. Soc. Am. 49: 374-398 (page 386, larva described)