Discothyrea horni

Identification
Chaul (2020) reporting on differences between characters of Discothyrea bobi and D. horni, noted the following about this species: nine or eight antennal segments; integument entirely opaque; well-defined propodeal corners.

Distribution
Central America and northern South America.

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

Nomenclature

 * . Discothyrea horni Menozzi, 1927c: 270, fig. 1 (q.) COSTA RICA.
 * Type-material: holotype queen.
 * Type-locality: Costa Rica: San José (H. Schmidt).
 * Type-depository: DEIB.
 * Menozzi, 1931b: 261 (w.).
 * Status as species: Menozzi, 1931b: 261; Weber, 1939a: 99 (in key); 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.

References based on Global Ant Biodiversity Informatics

 * Achury R., and A.V. Suarez. 2017. Richness and composition of ground-dwelling ants in tropical rainforest and surrounding landscapes in the Colombian Inter-Andean valley. Neotropical Entomology https://doi.org/10.1007/s13744-017-0565-4
 * Ahuatzin D. A., E. J. Corro, A. Aguirre Jaimes, J. E. Valenzuela Gonzalez, R. Machado Feitosa, M. Cezar Ribeiro, J. Carlos Lopez Acosta, R. Coates, W. Dattilo. 2019. Forest cover drives leaf litter ant diversity in primary rainforest remnants within human-modified tropical landscapes. Biodiversity and Conservation 28(5): 1091-1107.
 * Brown W. L., Jr. 1958. Contributions toward a reclassification of the Formicidae. II. Tribe Ectatommini (Hymenoptera). Bulletin of the Museum of Comparative Zoology 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
 * Fernández F., and T. M. Arias-Penna. 2008. Las hormigas cazadoras en la región Neotropical. Pp. 3-39 in: Jiménez, E.; Fernández, F.; Arias, T.M.; Lozano-Zambrano, F. H. (eds.) 2008. Sistemática, biogeografía y conservación de las hormigas cazadoras de Colombia. Bogotá: Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, xiv + 609 pp.
 * Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.
 * Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).
 * Longino J. T., and R. K. Colwell. 2011. Density compensation, species composition, and richness of ants on a neotropical elevational gradient. Ecosphere 2(3): 16pp.
 * Longino, J.T. 2010. Personal Communication. Longino Collection Database
 * Longino, J.T. and N. M. Nadkarni. 1990. A comparison of ground and canopy leaf litter ants (Hymenoptera: Formicidae) in a Neotopical Montane Forest. Psyche 97:81-93.
 * Menozzi C. 1927. Formiche raccolte dal Sig. H. Schmidt nei dintorni di San José di Costa Rica. Entomologische Mitteilungen. Berlin-Dahlem. 16: 266-277.
 * Menozzi C. 1931. Contribuzione alla conoscenza del microgenton di Costa Rica. III. Hymenoptera - Formicidae. Bollettino del Laboratorio di Zoologia Generale e Agraria della Reale Scuola Superiore d'Agricoltura. Portici. 25: 259-274.
 * Mertl A. L., J. F. A. Traniello, K. Ryder Wilkie, and R. Constantino. 2012. Associations of two ecologically significant social insect taxa in the litter of an amazonian rainforest: is there a relationship between ant and termite species richness? Psyche doi:10.1155/2012/312054
 * Mirmecofauna de la reserva ecologica de San Felipe Bacalar
 * Nascimento Santos M., J. H. C. Delabie, and J. M. Queiroz. 2019. Biodiversity conservation in urban parks: a study of ground-dwelling ants (Hymenoptera: Formicidae) in Rio de Janeiro City. Urban Ecosystems https://doi.org/10.1007/s11252-019-00872-8
 * Patrick M., D. Fowler, R. R. Dunn, and N. J. Sanders. 2012. Effects of Treefall Gap Disturbances on Ant Assemblages in a Tropical Montane Cloud Forest. Biotropica 44(4): 472478.
 * Philpott, S.M., P. Bichier, R. Rice, and R. Greenberg. 2007. Field testing ecological and economic benefits of coffee certification programs. Conservation Biology 21: 975-985.
 * Rojas Fernandez P. 2010. Capítulo 24. Hormigas (Insecta: Hymenoptera: Formicidae). In: Diversidad Biológica de Veracruz. Volumen Invertebrados. CONABIO-Gobierno del Estado de Veracruz.
 * 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.