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Pheidole angusta
| Pheidole angusta | |
|---|---|
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Attini |
| Genus: | Pheidole |
| Species: | P. angusta |
| Binomial name | |
| Pheidole angusta Forel, 1908
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| Synonyms | |
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Nothing is known about the biology of angusta.
Identification
See the description in the nomenclature section.
Keys including this Species
Distribution
Recorded from São Paulo and Rio de Janeiro, Brazil. (Wilson 2003)
Latitudinal Distribution Pattern
Latitudinal Range: -23.7833° to -27.0667°.
| 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
Worker
Minor
Images from AntWeb
   
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| Paralectotype of Pheidole angusta. Worker. Specimen code casent0908215. Photographer Z. Lieberman, uploaded by California Academy of Sciences. | Owned by MHNG, Geneva, Switzerland. |
   
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| Syntype of Pheidole angusta idulis. Worker. Specimen code casent0908217. Photographer Will Ericson, uploaded by California Academy of Sciences. | Owned by MHNG, Geneva, Switzerland. |
Major
Images from AntWeb
   
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| Syntype of Pheidole angusta idulis. Worker (major/soldier). Specimen code casent0908216. 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.
- angusta. Pheidole angusta Forel, 1908c: 373 (s.w.) BRAZIL. Senior synonym of idulis: Wilson, 2003: 167.
- idulis. Pheidole angusta r. idulis Forel, 1912f: 235 (s.w.) BRAZIL. Junior synonym of angusta: Wilson, 2003: 167.
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 yellow, long-scaped member of the diligens group similar to Pheidole longiscapa, differing as follows.
Major: dorsal surface of head with sparse long hairs, some longer than Eye Length; antennal scape approaching occipital corner within less than its own maximum width; carinulae of head not extending posteriorly beyond eyes; apex of petiolar node tapering to a near point in side view.
Minor: pilosity of dorsal surface of head and promesonotum sparse, long, some hairs longer than Eye Length; humerus in dorsaloblique view denticulate; petiolar node in side view tapered almost to a blunt point; occiput with nuchal collar.
MEASUREMENTS (mm) Lectotype major: HW 1.12, HL 1.14, SL 0.84, EL 0.18, PW 0.52. Paralectotype minor: HW 0.60, HL 0.74, SL 0.86, EL 0.14, PW 0.40.
COLOR Major and minor: concolorous medium yellow.
Figure. Upper: lectotype, major. Lower: paralectotype, minor. Scale bars = 1 mm.
Type Material
BRAZIL: Ipiranga, São Paulo. Musee d'Histoire Naturelle Genève - as reported in Wilson (2003)
Etymology
L angusta, narrow, 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 167, fig. major, minor described; Senior synonym of idulis)
- Forel, A. 1908h. Ameisen aus Sao Paulo (Brasilien), Paraguay etc. gesammelt von Prof. Herm. v. Ihering, Dr. Lutz, Dr. Fiebrig, etc. Verh. K-K. Zool.-Bot. Ges. Wien 58: 340-418 (page 373, soldier, worker described)
- Glaser, S.M., Feitosa, R.M., Koch, A., Goß, N., do Nascimento, F.S., Grüter, C. 2021. Tandem communication improves ant foraging success in a highly competitive tropical habitat. Insectes Sociaux. (doi:10.1007/s00040-021-00810-y).
References based on Global Ant Biodiversity Informatics
- Forel A. 1908. Ameisen aus Sao Paulo (Brasilien), Paraguay etc. gesammelt von Prof. Herm. v. Ihering, Dr. Lutz, Dr. Fiebrig, etc. Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien 58: 340-418.
- Kempf W. W. 1978. A preliminary zoogeographical analysis of a regional ant fauna in Latin America. 114. Studia Entomologica 20: 43-62.
- Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).