Hylomyrma dentiloba

Distribution
Panama, Costa Rica (Osa Peninsula).

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

Nomenclature

 *  dentiloba. Lundella dentiloba Santschi, 1931c: 271 (w.) PANAMA.
 * Combination in Hylomyrma: Kempf, 1960f: 430. See also: Kempf, 1964e: 52; Kempf, 1973b: 238.

Pierce et al. (2017) - The delimitation of Hylomyrma dentiloba remains unresolved, and for convenience we use a geographic definition of the species. Among the four clusters defined by sequence data, Hylomyrma plumosa is morphologically distinct, but we have found no morphological differences among the remaining three clusters. We use the name H. dentiloba  to refer to H. dentiloba -like material from the Osa Peninsula of Costa Rica south through Panama, and Hylomyrma versuta for material from the Atlantic slope of Costa Rica northward. Thus one scenario is that with further investigation of the Panamanian fauna, cryptic species within "H. dentiloba" will be resolved. An alternative scenario is that H. dentiloba  and H. versuta  together are a single paraphyletic species, with a low level of gene flow, yet having spawned at least one fully differentiated species (H. plumosa) from within the range.

Worker
Pierce et al. (2017) - (n = 3): EL 0.194 - 0.233, EW 0.121 - 0.126, GSL 0.152 - 0.295, HFL 0.706 - 0.783, HL 0.778 - 0.855, HW 0.71 - 0.835, ML 0.977 - 1.115, OMD 0.092 - 0.104, PpL 0.227 - 0.251, PpW 0.293 - 0.35, PronW 0.512 - 0.625, SL 0.548 - 0.591, SPL 0.196 - 0.241, CI 91 - 98, GSI 15 - 26, OI 27 - 30, PpWI 129 - 139, SI 71 - 82, SPI 28 - 31.

Type Material
Pierce et al. (2017) - Holotype worker: Panama, France Field, 2 June 1930 (A. Bierig), CASENT0913528] (AntWeb image examined).

References based on Global Ant Biodiversity Informatics

 * Branstetter M. G. and L. Sáenz. 2012. Las hormigas (Hymenoptera: Formicidae) de Guatemala. Pp. 221-268 in: Cano E. B. and J. C. Schuster. (eds.) 2012. Biodiversidad de Guatemala. Volumen 2. Guatemala: Universidad del Valle de Guatemala, iv + 328 pp
 * 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.
 * Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.
 * INBio Collection (via Gbif)
 * Kempf W. W. 1973. A revision of the Neotropical myrmicine ant genus Hylomyrma Forel (Hymenoptera: Formicidae). Studia Entomologica 16: 225-260.
 * Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).
 * Levings S. C. 1983. Seasonal, annual, and among-site variation in the ground ant community of a deciduous tropical forest: some causes of patchy species distributions. Ecological Monographs 53(4): 435-455.
 * Longino J. T. 2013. Ants of Nicargua. Consulted on 18 Jan 2013. https://sites.google.com/site/longinollama/reports/ants-of-nicaragua
 * Longino J. T. L., and M. G. Branstetter. 2018. The truncated bell: an enigmatic but pervasive elevational diversity pattern in Middle American ants. Ecography 41: 1-12.
 * 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. et al. ADMAC project. Accessed on March 24th 2017 at https://sites.google.com/site/admacsite/
 * Longino, J.T. 2010. Personal Communication. Longino Collection Database
 * Maes, J.-M. and W.P. MacKay. 1993. Catalogo de las hormigas (Hymenoptera: Formicidae) de Nicaragua. Revista Nicaraguense de Entomologia 23.
 * Pierce M. P., M. G. Branstetter, and J. T. Longino. 2017 . Integrative taxonomy reveals multiple cryptic species within Central American Hylomyrma FOREL, 1912 (Hymenoptera: Formicidae). Myrmecological News 25: 131-143.
 * Santschi F. 1931. Fourmis de Cuba et de Panama. Revista de Entomologia (Rio de Janeiro). 1: 265-282.
 * 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.