Pheidole alpinensis

Nothing is known about the biology of alpinensis.

Identification
See the description in the nomenclature section.

Distribution
Only known from the type locality.

Distribution based on Regional Taxon Lists
Neotropical Region: Argentina, Brazil.

Worker
Minor

Nomenclature

 *  alpinensis. Pheidole emeryi var. alpinensis Forel, 1912f: 231 (s.w.q.) BRAZIL. Subspecies of tristis: Bolton, 1995b: 316. Raised to species: Wilson, 2003: 650.

Description
From Wilson (2003): DIAGNOSIS A large, reddish brown (major) or reddish yellow (minor) member of the tristis group with very prominent subangulate humeri, large subangulate postpetiolar node, small subpetiolar process, and weakly shagreened first gastral tergite, in both major and minor.

Close to Pheidole tristis, and less similar to Pheidole exarata, Pheidole excubitor, Pheidole germaini, Pheidole obrima, Pheidole rogeri, Pheidole stulta and Pheidole zoster, differing in many details of body form, sculpturing, and pilosity, as illustrated, as well as in color. .

MEASUREMENTS (mrn) Lectotype major: HW 1.74, HL 2.00, SL 0.84, EL 0.20, PW 0.86. Paralectotype minor: HW 0.76, HL 0.84, SL 0.80, EL 0.14, PW 0.48.

COLOR Major: concolorous reddish brown. Minor: concolorous reddish yellow.



'''Figure. Upper: lectotype, major. Lower: paralectotype minor. Scale bars = 1 mm.'''

Type Material
BRAZIL: Colonia Alpina, Teresiopolis, Rio de Janeiro. - as reported in Wilson (2003)

Etymology
Named after the type locality. (Wilson 2003)

References based on Global Ant Biodiversity Informatics

 * Fernandes T. T., R. R. Silva, D. Rodrigues de Souza-Campana, O. Guilherme Morais da Silva, and M. Santina de Castro Morini. 2019. Winged ants (Hymenoptera: Formicidae) presence in twigs on the leaf litter of Atlantic Forest. Biota Neotropica 19(3): http://dx.doi.org/10.1590/1676-0611-bn-2018-0694
 * Fernandes T. T., W. Dattilo, R. R. Silva, P. Luna, C. M. Oliveira, and M. Santina de Castro Morini. 2019. Ant occupation of twigs in the leaf litter of the Atlantic Forest: influence of the environment and external twig structure. Tropical Conservation Science 12: 1-9.
 * Forel A. 1912. Formicides néotropiques. Part III. 3me sous-famille Myrmicinae (suite). Genres Cremastogaster et Pheidole. Mémoires de la Société Entomologique de Belgique. 19: 211-237.
 * Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).
 * Luederwaldt H. 1918. Notas myrmecologicas. Rev. Mus. Paul. 10: 29-64.