Apterostigma bolivianum

Identification
Eyes prominent (more than nine ommatidia along the shortest axis); frontal lobes in full-face view subquadrate; anterior margin of clypeus in full-face view concave, lacking shiny cuticular strip; neck lacking median carina; mandibles elongate; anterior margin of pronotum in dorsal view convex, with median emargination and no lateral thickening; and mesopleural ventral carina in lateral view well-developed, thick (Lattke 1997).

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Distribution
Mera-Rodriguez, et al. (2020) - A. bolivianum was only known from Amazonas, thus the new record from Antioquia Psuggests this species might be broadly distributed throughout the country (Fig. 1C) (Weber 1938; Kempf 1972; Fernández et al. 1996; Lattke 1997). Apterostigma bolivianum is also known from the following countries in northwestern South America: Bolivia, Ecuador, Peru, and Venezuela.

Distribution based on Regional Taxon Lists
Neotropical Region: Bolivia, Colombia, Ecuador, Peru, Venezuela.

Nomenclature

 * . Apterostigma bolivianum Weber, 1938b: 181, fig. 15 (w.q.) BOLIVIA.
 * Status as species: Weber, 1958c: 245; Kempf, 1972a: 23; Bolton, 1995b: 74; Lattke, 1997: 141 (redescription); Bezděčková, et al. 2015: 115.

References based on Global Ant Biodiversity Informatics

 * Dias N. S., R. Zanetti, M. S. Santos, J. Louzada, and J. H. C. Delabie. 2008. Interaction between forest fragments and adjacent coffee and pasture agroecosystems: responses of the ant communities (Hymenoptera, Formicidae). Iheringia, Sér. Zool., Porto Alegre, 98(1): 136-142.
 * Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.
 * Kusnezov N. 1953. La fauna mirmecológica de Bolivia. Folia Universitaria. Cochabamba 6: 211-229.
 * Lattke J. E. 1997. Revisión del género Apterostigma Mayr (Hymenoptera: Formicidae). Arquivos do Instituto Biológico (São Paulo) 34: 121-221
 * Weber N. A. 1938. The biology of the fungus-growing ants. Part IV. Additional new forms. Part V. The Attini of Bolivia. Rev. Entomol. (Rio J.) 9: 154-206.