Pheidole leoncortesi

This species occurs in wet forest habitat. It is locally abundant and recruits heavily to baits on the forest floor. Major and minor workers frequently occur together at baits. The nest is unknown. (Longino 2009)

Identification
With the general habitus and morphometric profile of Pheidole tschinkeli, with which it is sympatric. Minor and major worker: katepisternum and side of propodeum uniformly foveolate versus with conspicuous rugulae overlaying foveolate sculpture; propodeal spines short, tapering, with sharp tips, versus long, not tapering, tips blunt. (Longino 2009)

Distribution
Chiapas

Distribution based on Regional Taxon Lists
Neotropical Region: Mexico.

Worker
Minor

Nomenclature

 *  leoncortesi. Pheidole leoncortesi Longino, 2009: 49, fig. 13 (s.w.) MEXICO.

Worker
Minor Measurements (paratype): HL 0.72, HW 0.65, HLA 0.28, SL 0.78, EL 0.16, ML 0.94, PSL 0.07, PMG 0.03, SPL 0.03, PTW 0.13, PPW 0.20, CI 90, SI 120, PSLI 10, PMGI 3, SPLI 4, PPI 154.

Measurements (n=10): HL 0.67-0.78, HW 0.59-0.68, SL 0.73-0.86, CI 87-91, SI 120-127.

Mandible, clypeus, and entire face smooth and shiny, highly polished; margin of vertex rounded with median impression; occipital carina narrow, barely visible in full face view; scape with abundant erect setae longer than maximum width of scape; promesonotal groove present, strongly impressed; propodeal spines present, with sharp tips; katepisternum and side of propodeum foveolate, rest of mesosoma smooth and shining; mesosomal dorsum with about six pairs erect black setae; dorsal (outer) margin of hind tibia with appressed pubescence and 4-6 suberect setae that are longer than maximum width of tibia; first gastral tergum smooth and shining; gastral dorsum with moderately abundant, erect stiff black setae; color dark red brown.

Major Measurements (holotype): HL 1.13, HW 1.08, HLA 0.32, SL 0.79, EL 0.19, ML 1.07, PSL 0.10, PMG 0.05, SPL 0.05, PTW 0.21, PPW 0.32, IHT 0.43, OHT 0.49, CI 96, SI 73, PSLI 9, PMGI 4, SPLI 4, PPI 154, HTI 87.

Measurements (n=10): HL 1.09-1.21, HW 1.07-1.18, SL 0.76-0.84, CI 94-98, SI 67-74.

Mandible smooth and shiny; clypeus smooth and flat with distinct anterior notch; face mostly smooth and shiny, with a few carinulae on malar space; head lacking setae projecting from sides of head in face view; scape smooth and shining, terete at base, with appressed pubescence and abundant erect setae longer than maximum width of scape; hypostomal margin flat; median tooth absent or a small gibbosity; inner hypostomal teeth thin and sharp, located much closer to outer hypostomal teeth than to midline; promesonotal groove present; propodeal spines present; katepisternum and side of propodeum foveolate, rest of mesosoma smooth and shining; mesosomal dorsum with about six pairs erect black setae; dorsal (outer) margin of hind tibia with appressed pubescence and 4-8 suberect setae that are longer than maximum width of tibia; first gastral tergum smooth and shining; gastral dorsum with moderately abundant, erect stiff black setae; color dark red brown.

Type Material
Holotype major worker. Mexico, Chiapas: 21km SW Salto de Agua, 17.38542°N 92.42802°W, ±200m, 180m, 15 Jun 2008 (LLAMA#Ba-A-08-3-01-03) UNAM, unique specimen identifier CASENT0609109.

Paratypes: major and minor workers. Same data as holotype, , EAPZ, ECOSCE, , , , , , , , , , UNAM, ICN,.

Etymology
The species is named for Dr. Jorge León Cortés, Director of the San Cristobal campus of the Colegio de la Frontera Sur, Chiapas, Mexico. Jorge was an extremely generous and effective host during LLAMA project sampling in Chiapas. He is an energetic field biologist actively promoting biological studies in Chiapas.

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
 * Vasquez-Bolanos M. 2011. Checklist of the ants (Hymenoptera: Formicidae) from Mexico. Dugesiana 18(1): 95-133.