Pheidole steinheili

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Pheidole steinheili
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. steinheili
Binomial name
Pheidole steinheili
Forel, 1901

Pheidole steinheili casent0281741 p 1 high.jpg

Pheidole steinheili casent0281741 d 1 high.jpg

Specimen Labels

The type colony was very populous, in loose soil and covered by multiple craters (Forel).

Identification

See the description in the nomenclature section.

Keys including this Species

Distribution

Only known from the type locality.

Distribution based on Regional Taxon Lists

Neotropical Region: Colombia (type locality).

Distribution based on AntMaps

AntMapLegend.png

Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Worker

Minor

Major

Nomenclature

The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • steinheili. Pheidole steinheili Forel, 1901e: 353 (s.w.q.m.) COLOMBIA. See also: Wilson, 2003: 757.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

From Wilson (2003): DIAGNOSIS A large, distinctive species of the tristis group with no clear affinities.

Major: head capsule in full-face view roughly circular in outline, with smoothly semicircular occipital lobes; carinulae originating along the midline of the dorsal half of the head turn outward; occipital lobes mostly smooth, with a sprinkling of foveae; antennal scape very short, its tip reaching the lateral head margin just posterior to the eye; entire clypeus, most of mesosoma, and dorsum of waist carinulate; anterior half of central strip of first gastral tergite shagreened; postpetiole cone-shaped.

Minor: occiput very narrow but lacks nuchal collar; part of propodeal dorsum and lower fringe of mesopleuron carinulate.

MEASUREMENTS (mm) Lectotype major: HW 2.16, HL 2.20, SL 1.00, EL 0.28, PW 1.04. Paralectotype minor: HW 0.74, HL 0.84, SL 1.00, EL 0.18, PW 0.48.

COLOR Major: body medium to dark reddish brown except for posterior half of head capsule, which is light reddish brown; appendages light reddish brown.

Minor: concolorous plain light brown.


Pheidole steinheili Wilson 2003.jpg

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

Lectotype Specimen Labels

Type Material

COLOMBIA: Dibulla, Guajira, col. Auguste Forel. Musee d'Histoire Naturelle Genève - as reported in Wilson (2003)

Etymology

Eponymous, no further attribution. (Wilson 2003)

References