Pheidole ulothrix

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Pheidole ulothrix
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. ulothrix
Binomial name
Pheidole ulothrix
Wilson, 2003

Pheidole ulothrix inbiocri002279936 p 1 high.jpg

Specimen Label

Inhabits wet forest (Longino 1997).

Identification

See the description in the nomenclature section.

Keys including this Species

Distribution

Atlantic slope of Costa Rica (Longino 1997).

Distribution based on Regional Taxon Lists

Neotropical Region: Costa Rica (type locality), Panama.

Distribution based on AntMaps

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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.

  • ulothrix. Pheidole ulothrix Wilson, 2003: 530, figs. (s.w.) COSTA RICA.

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

Description

DIAGNOSIS A medium-sized light brown (major) to yellow (minor) species distinguished in the major by curved, subrecumbent hairs (hence “woolly” hairs) all along the mesosomal dorsum; longitudinal carinulae covering all of the head except the occiput, mid-clypeus, and frontal triangle; lack of rugoreticulum anywhere; and broadly oval postpetiolar node.

Similar to Pheidole delicata, but delicata has longer pilosity, none of which is “woolly,” shorter propodeal spines, narrow petiolar node apex, and other details in body form, sculpturing, and pilosity as shown.

See also the less similar Pheidole alticola, Pheidole chalca and Pheidole hazenae.

MEASUREMENTS (mm) Major: HW 0.98, HL 0.96, SL 0.58, EL 0.12, PW 0.46. Minor: HW 0.50, HL 0.54, SL 0.54, EL 0.10, PW 0.30.

COLOR Major: gaster light brown; rest of body, as well as appendages, medium to dark yellow.

Minor: gaster brownish yellow, rest of body medium yellow, appendages light yellow.


Pheidole ulothrix Wilson 2003.jpg

Figure. Upper: holotype, major. Lower: paratype, minor. Scale bars = 1 mm.

Type Material

COSTA RICA: Braulio Carillo National Park, Heredia, 500 m, col. J. T. Longino. Instituto Nacional de Biodiversidad

Etymology

Gr ulothrix, woolly haired, referring to the hairs on the mesosomal dorsum.

References