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Pheidole riveti
| Pheidole riveti | |
|---|---|
| |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Attini |
| Genus: | Pheidole |
| Species: | P. riveti |
| Binomial name | |
| Pheidole riveti Santschi, 1911
| |
Nothing is known about the biology of riveti.
Identification
See the description in the nomenclature section.
Keys including this Species
Distribution
Only known from the type locality.
Latitudinal Distribution Pattern
Latitudinal Range: 0.6217° to -3.085°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: AntMaps
Distribution based on Regional Taxon Lists
Neotropical Region: Colombia, Ecuador (type locality).
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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| Paralectotype of Pheidole riveti. Worker. Specimen code casent0913421. Photographer Z. Lieberman, uploaded by California Academy of Sciences. | Owned by NHMB, Basel, Switzerland. |
Major
Images from AntWeb
     
| |
| Lectotype of Pheidole riveti. Worker (major/soldier). Specimen code casent0913420. Photographer Z. Lieberman, uploaded by California Academy of Sciences. | Owned by NHMB, Basel, Switzerland. |
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- riveti. Pheidole riveti Santschi, 1911i: 278 (s.w.q.) ECUADOR. [Also described as new by Santschi, 1913h: 37.] See also: Wilson, 2003: 224.
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): Similar in various ways to Pheidole alfaroi, Pheidole diana, Pheidole laelaps, Pheidole seligmanni and Pheidole tepuicola, distinguished as follows.
Major: propodeal spine reduced to obtuse angle in side view, right angle in dorsal-oblique view; postpetiolar node in side view suppressed, in dorsal view narrow and bell-shaped; occipital margin smooth; carinulae originating on frontal lobes spread laterally as they approach occipital margin; propodeal dorsum and margins of promesonotal dorsum transversely carinulate.
Minor: head “tiger-striped” with semicircular carinulae, as depicted; propodeal dorsum transversely carinulate; occiput narrow but lacks nuchal collar; postpetiolar node in side view suppressed and entire postpetiole cylindrical.
MEASUREMENTS (mm) Lectotype major: HW 1.12, HL 1.16, SL (scapes missing), EL 0.14, PW 0.54. Paralectotype minor: HW 0.62, HL 0.76, SL 0.76, EL 0.14, PW 0.40.
COLOR Major: concolorous light brown.
Minor: concolorous medium brown.
Figure. Upper: lectotype, major. Lower: paralectotype, minor. Scale bars = 1 mm.
Type Material
ECUADOR: El Angel, near Tulcán,north-central Ecuador, 3000 m, col. P. Rivet. Naturhistorisches Museum, Basel - as reported in Wilson (2003)
Etymology
Named after the collector, P. Rivet. (Wilson 2003)
References
- Guerrero, R.J., Fernandez, F., Escarraga, M.E., Perez-Pedraza, L.F., Serna, F., Mackay, M.P., Sandoval, V., Vergara, V., Suarez, D., Garcia, E.I., Sanchez, A., Meneses, A.D., Tocora, M.C., Sosa-Calvo, J. 2018. New records of myrmicine ants (Hymenoptera: Formicidae) for Colombia. Revista Colombiana de Entomología 44: 238-259 (DOI 10.25100/socolen.v44i2.7115).
- Santschi, F. 1911i. Formicides de diverses provenances. Ann. Soc. Entomol. Belg. 55: 278-287 (page 278, soldier, worker, queen described)
- Santschi, F. 1913h. Hyménoptères. Formicides. Pp. 33-43 in: André, E. et al. Mission du service géographique de l'armée pour la mesure d'un arc de méridien équatorial en Amérique du Sud. Tome 10. Fasc. 1. Insectes. Paris: Gauthier-Villars, 119 pp. (page 37, also described as new)
- Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA.
References based on Global Ant Biodiversity Informatics
- Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.
- Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).