Pheidole brownampla

AntWiki: The Ants --- Online
Pheidole brownampla
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. brownampla
Binomial name
Pheidole brownampla
Longino, 2019

Pheidole brownampla CASENT0636682 p.jpg

Pheidole brownampla CASENT0636682 d.jpg

Holotype Labels

This species occurs in cloud forest. Minor and major workers recruit to ground baits, and workers occur in Winkler samples of sifted litter and rotten wood.

Identification

Longino (2019) - Minor: face uniformly foveolate; posterior margin of head weakly emarginate in face view; promesonotal groove absent; promesonotal dorsum and dorsal face of propodeum smooth and shiny; lateral pronotum smooth and shiny; katepisternum smooth and shiny anteroventrally, with posterior and dorsal strip of foveolation; propodeal spines about one half length of posterior face of propodeum; gaster smooth and shining; mesosomal and gastral dorsum, tibiae with abundant erect setae; color orange.

Major: head subrectangular; inner hypostomal teeth stout, closely spaced; scape base terete; weak scrobal impressions on face, weakly delimited dorsally by frontal carinae; face mostly foveolate, with longitudinal carinulae on anterior third to half, thin posterior strip on vertex lobes smooth and shiny; propodeal spines triangular, about one third length of posterior face of propodeum; gastral dorsum smooth and shining; side of head with erect setae; mesosomal and gastral dorsum, tibiae with abundant suberect setae.

Measurements, minor worker: HW 0.47, HL 0.49, SL 0.44, EL 0.13, WL 0.59, PSL 0.05, PTW 0.09, PPW 0.12, CI 96, SI 94, PSLI 11, PPI 141 (n=2).

Measurements, major worker: HW 0.92, HL 1.04, SL 0.45, EL 0.15, WL 0.75, PSL 0.05, PTW 0.13, PPW 0.21, CI 89, SI 49, PSLI 6, PPI 162 (n=2).

Measurements, queen: HW 0.69, HL 0.69, SL 0.42, EL 0.21, WL 1.05, PSL 0.07, PTW 0.20, PPW 0.28, CI 100, SI 61, PSLI 10, PPI 140 (n=1).

This species is very similar to Pheidole browni, differing in the larger head of the major worker (HW > 0.89 vs. < 0.76).

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: 9.86688° to 9.86439°.

 
North
Temperate
North
Subtropical
Tropical South
Subtropical
South
Temperate

Distribution based on Regional Taxon Lists

Neotropical Region: Costa Rica (type locality).

Distribution based on AntMaps

AntMapLegend.png

Distribution based on AntWeb specimens

Check data from AntWeb

Countries Occupied

Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species.
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Estimated Abundance

Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species.
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Biology

Castes

Worker

Minor

Images from AntWeb

Pheidole brownampla CASENT0636683 h.jpgPheidole brownampla CASENT0636683 p.jpgPheidole brownampla CASENT0636683 d.jpgPheidole brownampla CASENT0636683 l.jpg
ParatypeWorker (minor). Specimen code CASENT0636683. Photographer Skyler Oswald, uploaded by University of Utah. Owned by UCR.

Nomenclature

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

  • brownampla. Pheidole brownampla Longino, 2019: 28, fig. 16 (w.q.) COSTA RICA.

Type Material

  • HOLOTYPE: 1 major worker, Costa Rica, Limón: Cerro Plátano, 9.86688 -83.24151 ±50 m, 1120 m, 19-Jun-2015, cloud forest, along steep ridge near peak, at bait (ADMAC, Ba-E-03-1-02-02) [MUCR, unique specimen identifier CASENT0636682].
  • PARATYPES: major, minor workers: same data as holotype [MUCR]; same data except 9.86621 -83.24203 ±50 m, 1110 m (Ba-E-03-1-04-11) [MCZC]; 9.86552 -83.24254 ±50 m, 1090 m (Ba-E-03-2-01-11) [CAS]; 9.86439 -83.24371 ±50 m, 1050 m (Ba-E-03-2-04-04) [USNM].

Description

see the identification section above

Etymology

Similar to P. browni but larger.

References

References based on Global Ant Biodiversity Informatics

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