Pheidole angusta

Nothing is known about the biology of angusta.

Identification
See the description in the nomenclature section.

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

Distribution based on Regional Taxon Lists
Neotropical Region: Brazil.

Worker
Minor

Nomenclature

 *  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.

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.



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

Type Material
BRAZIL: Ipiranga, São Paulo. - as reported in Wilson (2003)

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

References based on Global Ant Biodiversity Informatics

 * Forel A. 1908. Ameisen aus Sao Paulo (Brasilien), Paraguay etc. gesammelt von Prof. Herm. v. Ihering, Dr. Lutz, Dr. Fiebrig, etc. Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien 58: 340-418.
 * Kempf W. W. 1978. A preliminary zoogeographical analysis of a regional ant fauna in Latin America. 114. Studia Entomologica 20: 43-62.
 * Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).