Pheidole riveti

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Pheidole riveti
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. riveti
Binomial name
Pheidole riveti
Santschi, 1911

Pheidole riveti casent0913422 p 1 high.jpg

Pheidole riveti casent0913422 d 1 high.jpg

Specimen Labels

Nothing is known about the biology of riveti.

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, Ecuador (type locality).


Distribution based on AntMaps

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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.

  • riveti. Pheidole riveti Santschi, 1911i: 278 (s.w.q.) ECUADOR. [Also described as new by Santschi, 1913h: 37.] See also: Wilson, 2003: 224.

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): Similar in various ways to Pheidole alfaroi, Pheidole diana, Pheidole laelaps, Pheidole seligmanni and Pheidole tepuicola, distinguished as follows.

Major: propodeal spine reduced to obtuse angle in side view, right angle in dorsal-oblique view; postpetiolar node in side view suppressed, in dorsal view narrow and bell-shaped; occipital margin smooth; carinulae originating on frontal lobes spread laterally as they approach occipital margin; propodeal dorsum and margins of promesonotal dorsum transversely carinulate.

Minor: head “tiger-striped” with semicircular carinulae, as depicted; propodeal dorsum transversely carinulate; occiput narrow but lacks nuchal collar; postpetiolar node in side view suppressed and entire postpetiole cylindrical.

MEASUREMENTS (mm) Lectotype major: HW 1.12, HL 1.16, SL (scapes missing), EL 0.14, PW 0.54. Paralectotype minor: HW 0.62, HL 0.76, SL 0.76, EL 0.14, PW 0.40.

COLOR Major: concolorous light brown.

Minor: concolorous medium brown.


Pheidole riveti Wilson 2003.jpg

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

Lectotype Specimen Labels

Type Material

ECUADOR: El Angel, near Tulcán,north-central Ecuador, 3000 m, col. P. Rivet. Naturhistorisches Museum, Basel - as reported in Wilson (2003)

Etymology

Named after the collector, P. Rivet. (Wilson 2003)

References