Pheidole angusta

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Pheidole angusta
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. angusta
Binomial name
Pheidole angusta
Forel, 1908

Pheidole angusta casent0908214 p 1 high.jpg

Pheidole angusta casent0908214 d 1 high.jpg

Specimen Labels

Synonyms

Nothing is known about the biology of angusta.

Identification

See the description in the nomenclature section.

Keys including this Species

Distribution

Recorded from São Paulo and Rio de Janeiro, Brazil. (Wilson 2003)

Distribution based on Regional Taxon Lists

Neotropical Region: Brazil (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.

  • angusta. Pheidole angusta Forel, 1908c: 373 (s.w.) BRAZIL. Senior synonym of idulis: Wilson, 2003: 167.
  • idulis. Pheidole angusta r. idulis Forel, 1912f: 235 (s.w.) BRAZIL. Junior synonym of angusta: Wilson, 2003: 167.

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): A yellow, long-scaped member of the diligens group similar to Pheidole longiscapa, differing as follows.

Major: dorsal surface of head with sparse long hairs, some longer than Eye Length; antennal scape approaching occipital corner within less than its own maximum width; carinulae of head not extending posteriorly beyond eyes; apex of petiolar node tapering to a near point in side view.

Minor: pilosity of dorsal surface of head and promesonotum sparse, long, some hairs longer than Eye Length; humerus in dorsaloblique view denticulate; petiolar node in side view tapered almost to a blunt point; occiput with nuchal collar.

MEASUREMENTS (mm) Lectotype major: HW 1.12, HL 1.14, SL 0.84, EL 0.18, PW 0.52. Paralectotype minor: HW 0.60, HL 0.74, SL 0.86, EL 0.14, PW 0.40.

COLOR Major and minor: concolorous medium yellow.


Pheidole angusta Wilson 2003.jpg

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

Lectotype Specimen Labels

Type Material

BRAZIL: Ipiranga, São Paulo. Musee d'Histoire Naturelle Genève - as reported in Wilson (2003)

Etymology

L angusta, narrow, allusion unknown. (Wilson 2003)

References

  • Forel, A. 1908h. Ameisen aus Sao Paulo (Brasilien), Paraguay etc. gesammelt von Prof. Herm. v. Ihering, Dr. Lutz, Dr. Fiebrig, etc. Verh. K-K. Zool.-Bot. Ges. Wien 58: 340-418 (page 373, soldier, worker described)
  • Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 167, fig. major, minor described; Senior synonym of idulis)