Camponotus rectangularis

De Oliveira et al. (2015) found two colonies of C. rectangularis opportunistically nesting in Cecropia pachystachya trees (southwest Bahia, Brazil).

Distribution based on Regional Taxon Lists
Neotropical Region: Belize, Brazil, Costa Rica, French Guiana, Guatemala, Guyana, Honduras, Mexico, Nicaragua, Panama, Peru, Suriname.

Nomenclature

 * . Camponotus rectangularis Emery, 1890b: 57 (w.) COSTA RICA.
 * [Also described as new by Emery, 1894k: 62.]
 * Combination in C. (Myrmorhachis): Forel, 1914a: 274;
 * combination in C. (Myrmocladoecus): Wheeler, W.M. 1922c: 16.
 * Status as species: Dalla Torre, 1893: 249; Emery, 1896d: 377 (in list); Forel, 1899c: 144; Wheeler, W.M. 1907a: 277; Forel, 1908b: 71; Forel, 1912i: 78; Wheeler, W.M. 1916c: 14; Wheeler, W.M. 1918b: 28; Mann, 1922: 53; Wheeler, W.M. 1922c: 16; Emery, 1925b: 167; Wheeler, W.M. 1933a: 63; Wheeler, W.M. 1934g: 220; Wheeler, W.M. 1942: 259; Kempf, 1972a: 56; Brandão, 1991: 333; Bolton, 1995b: 120; Branstetter & Sáenz, 2012: 256; Bezděčková, et al. 2015: 113; Mackay & Mackay, 2019: 766.
 * Current subspecies: nominal plus aulicus, rubroniger, setipes, sordidatus, willowsi.

Worker
Minor. Differing from the typical form of the species and its var. rubroniger Forel in coloration, being deep black, with the exception of the posterior borders of the gastric segments and terminal tarsal joints, which are reddish, and the head, antennal scapes and first funicular joint, which are bright yellowish red. Cheeks, clypeus and mandibles yellow, mandibular teeth reddish. The dorsal surface of the gaster is less opaque and more glossy than in rectangularis and rubroniger, with distinctly longer and denser pubescence and even shorter hairs.

Type Material
A single specimen from Acapulco, Mexico (IV.5.'32). There is in my collection a second specimen taken by Frederick Knab in the same locality.

References based on Global Ant Biodiversity Informatics

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 * Brandao, C.R.F. 1991. Adendos ao catalogo abreviado das formigas da regiao neotropical (Hymenoptera: Formicidae). Rev. Bras. Entomol. 35: 319-412.
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 * Dejean, A., S. Durou, I. Olmsted, R.R. Snelling and J. Orivel. 2003. Nest Site Selection by Ants in a Flooded Mexican Mangrove, with Special Reference to the Epiphytic Orchid Myrmecophila christinae. Journal of Tropical Ecology 19(3):325-331
 * Emery C. 1890. Studii sulle formiche della fauna neotropica. Bull. Soc. Entomol. Ital. 22: 38-8
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 * Franco W., N. Ladino, J. H. C. Delabie, A. Dejean, J. Orivel, M. Fichaux, S. Groc, M. Leponce, and R. M. Feitosa. 2019. First checklist of the ants (Hymenoptera: Formicidae) of French Guiana. Zootaxa 4674(5): 509-543.
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 * INBio Collection (via Gbif)
 * Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).
 * Maes, J.-M. and W.P. MacKay. 1993. Catalogo de las hormigas (Hymenoptera: Formicidae) de Nicaragua. Revista Nicaraguense de Entomologia 23.
 * Mirmecofauna de la reserva ecologica de San Felipe Bacalar
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 * Pires de Prado L., R. M. Feitosa, S. Pinzon Triana, J. A. Munoz Gutierrez, G. X. Rousseau, R. Alves Silva, G. M. Siqueira, C. L. Caldas dos Santos, F. Veras Silva, T. Sanches Ranzani da Silva, A. Casadei-Ferreira, R. Rosa da Silva, and J. Andrade-Silva. 2019. An overview of the ant fauna (Hymenoptera: Formicidae) of the state of Maranhao, Brazil. Pap. Avulsos Zool. 59: e20195938.
 * Rico-Gray, V. 1993. Use of plant-derived food resources by ants in the dry tropical lowlands of coastal Veracruz, Mexico. Biotropica 25(3):301-315.
 * Rico-Gray, V., and L. B. Thien. 1989. Ant-mealybug interaction decreases reproductive fitness of Schomburgkia tibicinis (Orchidaceae) in Mexico. Journal of Tropical Ecology 5: 109-112.
 * Rico-Gray, V., and L. B. Thien. 1989. Effect of different ant species on reproductive fitness of Schomburgkia tibicinis (Orchidaceae). Oecologia 81: 487-489.
 * Rico-Gray,V., J.G. Garcia-Franco, M. Palacios-Rios, C. Diaz-Castelazo, V. Parra-Tabla and J.A. Navarro. 1998. Geographical and Seasonal Variation in the Richness of Ant-Plant Interactions in Mexico. Biotropica 30(2):190-200.
 * Siqueira de Castro F., A. B. Gontijo, P. de Tarso Amorim Castro, and S. Pontes Ribeiro. 2012. Annual and Seasonal Changes in the Structure of Litter-Dwelling Ant Assemblages (Hymenoptera: Formicidae) in Atlantic Semideciduous Forests. Psyche doi:10.1155/2012/959715
 * Siqueira de Castro F., A. B. Gontijo, W. Duarte da Rocha, and S. Pontes Ribeiro. 2011. As comunidades de formigas de serapilheira nas florestas semidecíduas do Parque Estadual do Rio Doce, Minas Gerais. MG.BIOTA, Belo Horizonte 3(5): 5-24.
 * Smith M. A., W. Hallwachs, D. H. Janzen. 2014. Diversity and phylogenetic community structure of ants along a Costa Rican elevational gradient. Ecography 37(8): 720-731.
 * Vasconcelos, H.L., J.M.S. Vilhena, W.E. Magnusson and A.L.K.M. Albernaz. 2006. Long-term effects of forest fragmentation on Amazonian ant communities. Journal of Biogeography 33:1348-1356
 * Vásquez-Bolaños M. 2011. Lista de especies de hormigas (Hymenoptera: Formicidae) para México. Dugesiana 18: 95-133
 * Wheeler W. M. 1907. A collection of ants from British Honduras. Bulletin of the American Museum of Natural History 23: 271-277.
 * Wheeler W. M. 1918. Ants collected in British Guiana by Mr. C. William Beebe. Journal of the New York Entomological Society 26: 23-28.
 * Wheeler W. M. 1934. Neotropical ants collected by Dr. Elisabeth Skwarra and others. Bulletin of the Museum of Comparative Zoology 77: 157-240.
 * Wheeler W. M. 1942. Studies of Neotropical ant-plants and their ants. Bulletin of the Museum of Comparative Zoology 90: 1-262.
 * Wheeler, William Morton. 1934. Ants From The Islands Off The West Coast Of Lower California and Mexico. The Pan-Pacific Entomologist. 10(3):131-144.
 * Wilson, E.O. 1987. The Arboreal Ant Fauna of Peruvian Amazon Forests: A First Assessment. Biotropica 19(3):245-251.