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Pheidole ulothrix
| 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
| |
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).
Latitudinal Distribution Pattern
Latitudinal Range: 10.35° to 9.15°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: AntMaps
Distribution based on Regional Taxon Lists
Neotropical Region: Costa Rica (type locality), Panama.
Distribution based on AntMaps
Distribution based on AntWeb specimens
Check data from AntWeb
Countries Occupied
| Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species. |
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Estimated Abundance
| Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species. |
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Biology
Castes
Worker
Minor
Images from AntWeb
  
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| Worker. Specimen code casent0635538. Photographer J. Longino, uploaded by University of Utah. | Owned by JTLC. |
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- 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.
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
- Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 530, fig. major, minor described)
References based on Global Ant Biodiversity Informatics
- Donoso D. A. 2014. Assembly mechanisms shaping tropical litter ant communities. Ecography 37 doi: 10.1111/j.1600-0587.2013.00253.x
- Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.
- Longino J. T. L., and M. G. Branstetter. 2018. The truncated bell: an enigmatic but pervasive elevational diversity pattern in Middle American ants. Ecography 41: 1-12.