Strumigenys convexiceps

One of the few specimens of S. convexiceps was found in the sifted litter of a low elevation pine forest.

Identification
A member of the Strumigenys nitens-group. Similar to Strumigenys nitens, with their differences noted under the identification section of this other species.

Distribution based on Regional Taxon Lists
Neotropical Region: Cuba, Greater Antilles.

Nomenclature

 *  convexiceps. Strumigenys (Codiomyrmex) convexiceps Santschi, 1931c: 277, figs. 9, 10 (w.) CUBA. Combination in Codiomyrmex: Weber, 1934a: 52; in Glamyromyrmex: Brown, 1948e: 116; in Pyramica: Bolton, 1999: 1672; in Strumigenys: Baroni Urbani & De Andrade, 2007: 117. See also: Bolton, 2000: 208.

Worker
Bolton (2000) - Mandibles in full-face view and at full closure triangular, strongly tapering apically; MI 26-30. Distal of the basal lamella with 3 short triangular teeth that are slightly recurved and whose apices fail to meet, or only just meet, at full closure. These are followed by 2 elongate curved spiniform teeth, the first of which (tooth 4 from the base) is at the top of a marked downcurvature of the blade, so that the remaining teeth form a more or less vertical apical series below the fourth. Tooth 6 also elongate but shorter than 5, followed by two very short teeth or denticles and terminating in a slightly larger apical tooth, to give a total dental count of 9. Other differences from Strumigenys nitens are noted below.

Type Material
Bolton (2000) - Syntype workers, CUBA: Havana, Playa Marianao, 27.iv. 1930 (A. Bierig) [examined].

References based on Global Ant Biodiversity Informatics

 * Alayo D. P. 1974. Introduccion al estudio de los Himenopteros de Cuba. Superfamilia Formicoidea. Academia de Ciencias de Cuba. Instituto de Zoologia. Serie Biologica no.53: 58 pp. La Habana.
 * Bolton, B. 2000. The Ant Tribe Dacetini. Memoirs of the American Entomological Institute 65
 * Booher D. B., M. M. Prebus, and D. Lubertazzi. 2019. A taxonomic revision of the Strumigenys nitens and simulans groups (Hymenoptera: Formicidae), two Caribbean radiations of leaf litter ants. Zootaxa 4656: 335-358.
 * Brown W. L., Jr. 1950. Revision of the ant tribe Dacetini: II. Glamyromyrmex Wheeler and closely related small genera. Trans. Am. Entomol. Soc. 76: 27-36.
 * Fontanla Rizo J.L. 1997. Lista preliminar de las hormigas de Cuba. Cocuyo 6: 18-21.
 * Fontenla J. L., and J. Alfonso-Simonetti. 2018. Classification of Cuban ants (Hymenoptera: Formicidae) into functional groups. Poeyana Revista Cubana de Zoologia 506: 21-30.
 * Fontenla Rizo J. L. 1997. Lista preliminar de las hormigas de Cuba (Hymenoptera: Formicidae). Cocuyo 6: 18-21.
 * Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).
 * Kusnezov N. 1963. Zoogeografia de las hormigas en sudamerica. Acta Zoologica Lilloana 19: 25-186
 * Portuondo E. F., and J. L. Reyes. 2002. Mirmecofauna de los macizos montañosos de Sierra Maestra y Nipe-Sagua-Baracoa. Cocuyo 12: 10-13
 * Portuondo Ferrer E., and J. L. Fernández Triana. 2005. Species of hymenopterans (bees, wasps, and ants) recorded in Alejandro de Humboldt National Park, from literature records, revision of the collection at BIOECO, and collections before and during the rapid inventory, 12-22 February 2004. In Fong G., A., D. Maceira F., W. S. Alverson, y/and T. Wachter, eds. 2005. Cuba: Parque Nacional Alejandro de Humboldt. Rapid Biological Inventories Report 14. The Field Museum, Chicago.
 * Portuondo Ferrer, E. and J. Fernandez Triana. Biodiversidad del orden Hymenoptera en Los Macizos Montanosos de Cuba Oriental. Boletin S.E.A. 35:121-136.
 * Santschi F. 1931. Fourmis de Cuba et de Panama. Revista de Entomologia (Rio de Janeiro). 1: 265-282.