Pheidole sensitiva

AntWiki - Where Ant Biologists Share Their Knowledge
Jump to: navigation, search
Pheidole sensitiva
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. sensitiva
Binomial name
Pheidole sensitiva
Borgmeier, 1959

Pheidole sensitiva inbiocri001242794 p 1 high.jpg

Specimen Label

In Costa Rica, Longino (1997) found the species in litter and recruiting to baits on the floor of rainforests. (Wilson 2003)

Identification

See the description in the nomenclature section.

Keys including this Species

Distribution

Known from the type series from Rio de Janeiro, a series from near San Juan de Arama, Meta, Colombia, and, according to Longino (1997), the Atlantic and Pacific slopes of Costa Rica to 700 m. (Wilson 2003)

Distribution based on Regional Taxon Lists

Neotropical Region: Brazil (type locality), Colombia, Costa Rica, Honduras, Nicaragua, Panama, Peru.

Distribution based on AntMaps

AntMapLegend.png

Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Worker

Minor

Nomenclature

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

  • sensitiva. Pheidole sensitiva Borgmeier, 1959a: 316, figs. 3-9 (s.w.) BRAZIL. See also: Wilson, 2003: 231.

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 small, light reddish brown member of the diligens group with moderately abundant to dense, very long, erect to semierect, often strongly curved hairs.

Major: sculpturing of head consists entirely of carinulae, which are limited to the anterior third of the head capsule and absent from the frontal lobes; promesonotal profile 3-lobed; pronotal humerus rounded in dorsal-oblique view; pilosity of gaster shorter and much denser than on the rest of the body.

Minor: humerus rounded and pronotum smooth and shiny.

Similar to Pheidole longiseta, Pheidole pubiventris and ''Pheidole variegata (= Pheidole pubiventris), differing in many details of body form and sculpturing, as shown.

See also Pheidole blumenauensis, Pheidole rochai, Pheidole seeldrayersi and Pheidole vafra.

MEASUREMENTS (mm) Holotype major: HW 0.94, HL 0.94, SL 0.64, EL 0.16, PW 0.48. Paratype minor: HW 0.58, HL 0.64, SL 0.76, EL 0.14, PW 0.38.

COLOR Major: light reddish brown; gaster a shade darker; appendages yellowish brown. Minor: light brown, gaster a shade darker and appendages a shade lighter than head and mesosoma.


Pheidole sensitiva Wilson 2003.jpg

Figure. Upper: holotype, major (tibia shown next to full-face view of head). Lower: paratype, minor. Scale bars = 1 mm.


Type Material

BRAZIL: Jacarepagu√° (Taquera), Rio de Janeiro. Museu de Zoologia da Universidade de Sao Paulo - as reported in Wilson (2003)

Etymology

L sensitiva, possibly referring to the sensory function of the long body hairs. (Wilson 2003)

References