Discothyrea humilis

Identification
Chaul (2020) reporting on differences between characters of Discothyrea bobi and D. humilis, noted the following about this species: well-defined propodeal corners; posterior margin of petiole node in profile high.

Distribution
Central America, northern South America, Lesser Antilles

Distribution based on Regional Taxon Lists
Neotropical Region: Costa Rica, Guatemala, Mexico, Panama, Venezuela.

Nomenclature

 * . Discothyrea humilis Weber, 1939a: 100 (q.) PANAMA (Barro Colorado I.).
 * Type-material: 2 syntype queens.
 * Type-locality: Panama: Canal Zone, Barro Colorado I., 13.vi.1938, and 20.vi.1938 (N.A. Weber).
 * Type-depository: MCZC (perhaps also in AMNH).
 * Status as species: Borgmeier, 1949: 206 (in key); Smith, M.R. & Wing, 1955: 107; Brown, 1958g: 253; Kempf, 1972a: 97; Bolton, 1995b: 171; Sosa-Calvo & Longino, 2008: 226; Branstetter & Sáenz, 2012: 263; Escárraga, Longino & Sosa-Calvo, 2019: 686; Chaul, 2020: 207.
 * Distribution: Colombia, Costa Rica, Guatemala, Panama.

References based on Global Ant Biodiversity Informatics

 * Borgmeier T. 1949. Formigas novas ou pouco conhecidas de Costa Rica e da Argentina (Hymenoptera, Formicidae). Revista Brasileira de Biologia 9: 201-210.
 * Brown W. L., Jr. 1958. Contributions toward a reclassification of the Formicidae. II. Tribe Ectatommini (Hymenoptera). Bull. Mus. Comp. Zool. 118: 173-362.
 * Dattilo W. et al. 2019. MEXICO ANTS: incidence and abundance along the Nearctic-Neotropical interface. Ecology https://doi.org/10.1002/ecy.2944
 * Fernandes I., and J. de Souza. 2018. Dataset of long-term monitoring of ground-dwelling ants (Hymenoptera: Formicidae) in the influence areas of a hydroelectric power plant on the Madeira River in the Amazon Basin. Biodiversity Data Journal 6: e24375.
 * Kaspari M., D. Donoso, J. A. Lucas, T. Zumbusch, and A. D. Kay. 2012. Using nutritional ecology to predict community structure: a field test in Neotropical ants. Ecosphere 3(11): art.93.
 * Longino, J.T. 2010. Personal Communication. Longino Collection Database
 * Rodriguez E. R., and J. E. Lattke. 2012. Diversidad de hormigas en un gradiente altitudinal de la cordillera de la Costa, Venezuela. Boletín de la Sociedad Entomológica Aragonesa (S.E.A.) 50: 295?304.
 * Smith M. R., and M. W. Wing. 1955. Redescription of Discothyrea testacea Roger, a little-known North American ant, with notes on the genus (Hymenoptera: Formicidae). Journal of the New York Entomological Society 62: 105-112.
 * Weber N. A. 1939. New ants of rare genera and a new genus of ponerine ants. Ann. Entomol. Soc. Am. 32: 91-104.