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Pheidole alienata
| Pheidole alienata | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Attini |
| Genus: | Pheidole |
| Species: | P. alienata |
| Binomial name | |
| Pheidole alienata Borgmeier, 1929 | |
Nothing is known about the biology of alienata.
Identification
See the description in the nomenclature section.
Keys including this Species
Distribution
Only known from the type locality.
Latitudinal Distribution Pattern
Latitudinal Range: 4.091666667° to -22.908°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: AntMaps
Distribution based on Regional Taxon Lists
Neotropical Region: Brazil (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
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- alienata. Pheidole bergi subsp. alienata Borgmeier, 1929: 205 (s.w.) BRAZIL. Raised to species: Wilson, 2003: 264.
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 member of the fallax group, close to Pheidole bergi and possibly only a variant of it; also similar to Pheidole aenescens, Pheidole cordiceps, Pheidole chrysops, Pheidole midas and Pheidole nesiota. P. alienata is distinguished as follows.
Major: carinulae of dorsum of head extend more than halfway from level of eye to occiput; pronotum completely covered by transverse carinulae, and foveolate and opaque in the interspaces; humerus in dorsal-oblique view prominent, rising 2X higher above the level of the propodeum as the mesonotal convexity.
Minor: propodeal spine long, needle-like.
MEASUREMENTS (mm) Lectotype major: HW 1.52, HL 1.60, SL 0.94, EL 0.22, PW 0.78. Paralectotype minor: HW 0.68, HL 0.84, SL 1.00, EL 0.18, PW 0.48.
COLOR Major: concolorous light reddish brown.
Minor: appendages and body brownish yellow except for the gaster, which is plain medium brown.
Figure. Upper: lectotype, major. Lower: paralectotype, minor. Scale bars = 1 mm.
Type Material
BRAZIL: Guanabara, Rio de Janeiro. Museu de Zoologia da Universidade de Sao Paulo - as reported in Wilson (2003)
Etymology
L alienata, estranged, maddening; allusion unknown. (Wilson 2003)
References
- Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 264, Raised to species, fig. major, minor described)
- Borgmeier, T. 1929. Zur Kenntnis der brasilianischen Ameisen. EOS. Rev. Esp. Entomol. 5: 195-214. (page 205, soldier, worker described)
- Franco, W., Ladino, N., Delabie, J.H.C., Dejean, A., Orivel, J., Fichaux, M., Groc, S., Leponce, M., Feitosa, R.M. 2019. First checklist of the ants (Hymenoptera: Formicidae) of French Guiana. Zootaxa 4674, 509–543 (doi:10.11646/zootaxa.4674.5.2).
References based on Global Ant Biodiversity Informatics
- Franco W., N. Ladino, J. H. C. Delabie, A. Dejean, J. Orivel, M. Fichaux, S. Groc, M. Leponce, and R. M. Feitosa. 2019. First checklist of the ants (Hymenoptera: Formicidae) of French Guiana. Zootaxa 4674(5): 509-543.
- Groc S., J. H. C. Delabie, F. Fernandez, M. Leponce, J. Orivel, R. Silvestre, Heraldo L. Vasconcelos, and A. Dejean. 2013. Leaf-litter ant communities (Hymenoptera: Formicidae) in a pristine Guianese rainforest: stable functional structure versus high species turnover. Myrmecological News 19: 43-51.
- Groc S., J. Orivel, A. Dejean, J. Martin, M. Etienne, B. Corbara, and J. H. C. Delabie. 2009. Baseline study of the leaf-litter ant fauna in a French Guianese forest. Insect Conservation and Diversity 2: 183-193.
- Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).