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Pheidole cordiceps
| Pheidole cordiceps | |
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Attini |
| Genus: | Pheidole |
| Species: | P. cordiceps |
| Binomial name | |
| Pheidole cordiceps Mayr, 1868
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| Synonyms | |
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Nothing is known about the biology of cordiceps.
Identification
See the description in the nomenclature section.
Keys including this Species
Distribution
Argentina: widespread in the country, including Buenos Aires, Chabut, Córdoba, Mendoza, and Salta (Kempf 1972b).
Latitudinal Distribution Pattern
Latitudinal Range: -3.3667° to -37.12°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: AntMaps
Distribution based on Regional Taxon Lists
Neotropical Region: Argentina (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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| Worker. Specimen code casent0281739. Photographer Estella Ortega, uploaded by California Academy of Sciences. | Owned by NHMUK, London, UK. |
   
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| Syntype of Pheidole cordiceps lilianae. Worker. Specimen code casent0904387. Photographer Z. Lieberman, uploaded by California Academy of Sciences. | Owned by MSNG, Genoa, Italy. |
   
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| Syntype of Pheidole cordiceps lilianae. Worker. Specimen code casent0908129. Photographer Z. Lieberman, uploaded by California Academy of Sciences. | Owned by MHNG, Geneva, Switzerland. |
Major
Images from AntWeb
   
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| Syntype of Pheidole cordiceps lilianae. Worker (major/soldier). Specimen code casent0904386. Photographer Z. Lieberman, uploaded by California Academy of Sciences. | Owned by MSNG, Genoa, Italy. |
   
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| Syntype of Pheidole cordiceps lilianae. Worker (major/soldier). Specimen code casent0908128. Photographer Z. Lieberman, uploaded by California Academy of Sciences. | Owned by MHNG, Geneva, Switzerland. |
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- cordiceps. Pheidole cordiceps Mayr, 1868b: 174 (s.w.) ARGENTINA. Emery, 1906c: 149 (q.). Senior synonym of lilianae: Wilson, 2003: 279.
- lilianae. Pheidole cordiceps var. lilianae Forel, 1912f: 232 (s.w.q.m.) ARGENTINA. Subspecies of cordiceps: Kusnezov, 1952b: 66 (in key). Junior synonym of cordiceps: Wilson, 2003: 279.
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 medium-sized, yellow member of the fallax group, distinguished as follows:
Major: head heart-shaped; propodeal spines reduced to denticles; postpetiolar node seen from above roughly trapezoidal; mesonotal convexity prominent, and in dorsal-oblique view seeming to “lean” posteriorly; carinulae on frontal lobes restricted to lateral halves, and rest of cephalic sculpturing confined to the level of the eyes and capsule anterior to them.
Minor: occiput very broad, lacking nuchal collar; humerus angulate; sculpturing on head limited to anterior fourth of dorsal surface.
Most similar to and possibly synonymous with Pheidole dione.
MEASUREMENTS (mm) Lectotype major: HW 1.44, HL 1.46, SL not measured, EL 0.22, PW 0.72. Paralectotype minor: HW 0.70, HL 0.74, SL 0.86, EL 0.16, PW 0.42.
COLOR Major: medium yellow, gaster a slightly contrasting yellowish brown.
Minor: head and mesosoma reddish yellow, waist and gaster medium brown.
Figure. Upper: lectotype, major (antennal scape drawn from an undamaged paralectotype major). Lower: paralectotype, minor. Scale bars = 1 mm.
Type Material
ARGENTINA: Buenos Aires, col. P. de Strobel. Naturhistorisches Museum Wien, Vienna - as reported in Wilson (2003)
Etymology
L cordiceps, heart-shaped head. (Wilson 2003)
References
- Emery, C. 1906c [1905]. Studi sulle formiche della fauna neotropica. XXVI. Bull. Soc. Entomol. Ital. 37: 107-194 (page 149, queen described)
- Kempf, W. W. 1972b. Catálogo abreviado das formigas da região Neotropical. Stud. Entomol. 15: 3–344.
- Mayr, G. 1868b. Formicidae novae Americanae collectae a Prof. P. de Strobel. Annu. Soc. Nat. Mat. Modena 3: 161-178 (page 174, soldier, worker described)
- Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 279, Senior synonym of lilianae, fig. major, minor described)
References based on Global Ant Biodiversity Informatics
- Bruch C. 1914. Catálogo sistemático de los formícidos argentinos. Revista del Museo de La Plata 19: 211-234.
- Cuezzo, F. 1998. Formicidae. Chapter 42 in Morrone J.J., and S. Coscaron (dirs) Biodiversidad de artropodos argentinos: una perspectiva biotaxonomica Ediciones Sur, La Plata. Pages 452-462.
- Emery C. 1906. Studi sulle formiche della fauna neotropica. XXVI. Bullettino della Società Entomologica Italiana 37: 107-194.
- Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).
- Kusnezov N. 1952. El género Pheidole en la Argentina (Hymenoptera, Formicidae). Acta Zoologica Lilloana 12: 5-88.
- Kusnezov N. 1978. Hormigas argentinas: clave para su identificación. Miscelánea. Instituto Miguel Lillo 61:1-147 + 28 pl.
- Pignalberi C. T. 1961. Contribución al conocimiento de los formícidos de la provincia de Santa Fé. Pp. 165-173 in: Comisión Investigación Científica; Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina) 1961. Actas y trabajos del primer Congreso Sudamericano de Zoología (La Plata, 12-24 octubre 1959). Tomo III. Buenos Aires: Librart, 276 pp.
- Vittar, F. 2008. Hormigas (Hymenoptera: Formicidae) de la Mesopotamia Argentina. INSUGEO Miscelania 17(2):447-466
- Vittar, F., and F. Cuezzo. "Hormigas (Hymenoptera: Formicidae) de la provincia de Santa Fe, Argentina." Revista de la Sociedad Entomológica Argentina (versión On-line ISSN 1851-7471) 67, no. 1-2 (2008).
- Zolessi L. C. de, Y. P. Abenante, and M. E. de Philippi. 1988. Lista sistematica de las especies de Formicidos del Uruguay. Comun. Zool. Mus. Hist. Nat. Montev. 11: 1-9.
- Zolessi L. C. de; Y. P. de Abenante, and M. E. Philippi. 1989. Catálogo sistemático de las especies de Formícidos del Uruguay (Hymenoptera: Formicidae). Montevideo: ORCYT Unesco, 40 + ix pp.
- de Zolessi, L.C., Y.P. de Abenante and M.E. Philippi. 1987. Lista sistemática de las especies de formícidos del Uruguay. Comunicaciones Zoologicas del Museo de Historia Natural de Montevideo 11(165):1-9