Pheidole rogeripolita

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Pheidole rogeripolita
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. rogeripolita
Binomial name
Pheidole rogeripolita
Longino, 2019

This species occurs in lower montane, mature wet forest. It nests in clay soil on vertical banks. Several nests have been discovered and excavated.

  • Nest 1: the entrance was a flared auricle-like structure of accreted soil; irregular galleries extended back into bank from the entrance; abundant workers, soldiers, brood were found about 5cm deep.
  • Nest 2: on a concave clay bank, the entrance under a shelf, pointing downward; the nest entrance was a projecting, thin-walled, open-mouthed cylinder, made of accreted soil.
  • Nest 3: in an abandoned wax tube of a Trigona bee nest, in a buttressed trunk, 1.5 m high; the wax tube covered a hemispherical chamber about 8 cm diameter; the entire colony with a single queen appeared to be in this chamber; a uniformly distributed layer of larvae were adhering to the vertical back wall of the chamber.
  • Nest 4: incipient nest in a clay bank; inconspicuous circular entrance tunnel; nest a spherical chamber 3-4 cm deep; most of the colony collected; 16 minor workers, 1 colony queen, brood.
  • Nest 5: stream edge in moist forest; nest in clay bank deep in alcove with overhanging roots.

Identification

Similar in most respects to Pheidole rogeri. The minor worker has a smooth, shiny face, rather than the lustrous, shagreened face of P. rogeri. The major worker is not readily distinguishable.

Measurements, minor worker: HW 0.84, HL 1.14, SL 1.56, EL 0.18, WL 1.63, PSL 0.42, PTW 0.14, PPW 0.23, CI 74, SI 185, PSLI 50, PPI 164 (n=2).

Measurements, major worker: HW 2.35, HL 2.59, SL 1.53, EL 0.28, WL 2.19, PSL 0.44, PTW 0.29, PPW 0.51, CI 91, SI 66, PSLI 19, PPI 173 (n=2).

Measurements, queen: HW 2.23, HL 2.14, SL 1.62, EL 0.48, WL 3.25, PSL 0.41, PTW 0.51, PPW 0.90, CI 104, SI 73, PSLI 19, PPI 175 (n=1).

Pheidole rogeripolita is a montane variant of the widespread lowland species Pheidole rogeri. The two are sister taxa and diverged about 5 mya (Pheidole JTL134 in Economo et al. 2019).

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: 10.3107° to 10.3°.

 
North
Temperate
North
Subtropical
Tropical South
Subtropical
South
Temperate

Distribution based on Regional Taxon Lists

Neotropical Region: Costa Rica (type locality), Panama.

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Nomenclature

The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

  • rogeripolita. Pheidole rogeripolita Longino, 2019: 56, fig. 58 (w.q.) COSTA RICA.

Type Material

  • HOLOTYPE: 1 major worker, Costa Rica, Alajuela: Peñas Blancas River, 10.3 -84.73333 ±2 km, 850 m, 3-Mar-2005, wet forest, nest in clay bank (J. Longino, JTL5465) [MUCR, unique specimen identifier CASENT0636564].
  • PARATYPES: major, minor worker, queen: same data as holotype [JTLC, MUCR]; Costa Rica, Alajuela: 10km E Monteverde, 10.3107 -84.71356 ±50 m, 830 m, 15-May-2014, mature wet forest, nest in cavity in treetrunk (J. Longino, JTL8640) [CAS, DZUP, JTLC, MCZC, USNM].

Description

Etymology

Similar to P. rogeri, but smooth and shiny, without a dull surface.

References

References based on Global Ant Biodiversity Informatics

  • Longino J. T. 2019. Pheidole (Hymenoptera, Formicidae) of Middle American wet forest. Zootaxa 4599: 1-126