Pheidole glomericeps

This species is only known from type specimens. These were collected at a bait in a subterranean trap, col. W. P. MacKay.

Identification
See the description in the nomenclature section.

Distribution
Known from the type locality and from near Turrialba, Cartago Prov., Costa Rica, 550 m. (Wilson 2003)

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

Worker
Minor

Nomenclature

 *  glomericeps. Pheidole glomericeps Wilson, 2003: 429, figs. (s.w.) MEXICO.

Description
Similar in various traits to Pheidole exigua, Pheidole moffetti, Pheidole nana, Pheidole nuculiceps, Pheidole orbica, Pheidole rudigenis, Pheidole sculptior and Pheidole styrax, differing as follows.

Major: outline of head in full-face view circular; antennal scrobes present, anterior fourth of pronotal dorsum, as well as space between eye and antennal fossa, rugoreticulate; promesonotal profile elevated and strongly convex; mesonotal convexity subangulate in side view; petiolar node tapered at apex to a blunt point; postpetiole from above trapezoidal; almost all of mesosoma foveolate.

Minor: eye small and elliptical; promesonotal profile semicircular; occiput broad and weakly concave; petiolar node tapers to point at apex; all of head and mesosoma foveolate.

MEASUREMENTS (mm) Holotype major: HW 0.80, HL 0.80, SL 0.44, EL 0.10, PW 0.38. Paratype minor: HW 0.40, HL 0.44, SL 0.42, EL 0.04, PW 0.24.

COLOR Major and minor: concolorous yellow.



'''Figure. Upper: holotype, major. Lower: paratype, minor. Scale bars = 1 mm.'''

Type Material
MEXICO: 10 km south of Palenque, Chiapas, col. William P. MacKay.

Etymology
L glomericeps, spherical head.

References based on Global Ant Biodiversity Informatics

 * 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.
 * Dattilo W. et al. 2019. MEXICO ANTS: incidence and abundance along the Nearctic-Neotropical interface. Ecology https://doi.org/10.1002/ecy.2944
 * 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. et al. ADMAC project. Accessed on March 24th 2017 at https://sites.google.com/site/admacsite/
 * Vásquez-Bolaños M. 2011. Lista de especies de hormigas (Hymenoptera: Formicidae) para México. Dugesiana 18: 95-133
 * Wilson, E.O. 2003. Pheidole in the New World: A Dominant, Hyperdiverse Genus. Harvard University Press