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Pheidole angustinigra
| Pheidole angustinigra | |
|---|---|
| |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Attini |
| Genus: | Pheidole |
| Species: | P. angustinigra |
| Binomial name | |
| Pheidole angustinigra Longino, 2019
| |
This species is known from one site in Guatemala. It was an area of dry scrub habitat. Minor and major workers recruited to multiple ground baits placed on a grassy slope and in a stream gully.
Identification
Longino (2019) - Minor: face foveolate; promesonotal groove distinct, impressed; entire mesosoma foveolate; propodeal spines about one half length of posterior face of propodeum; gaster shagreened on anterior half, rest smooth and shining; mesosomal dorsum and gaster with abundant, short, stiff setae; tibiae without erect setae; color dark brown to black.
Major: inner hypostomal teeth absent; scape base terete; space between eye and antennal fossa foveolate, overlain with rugulae; medial frons between frontal carinae foveolate, overlain with fine, longitudinal carinulae; rest of face smooth and shining; propodeal spines about one half length of posterior face of propodeum; gastral dorsum shagreened on anterior half, fading to smooth and shining posteriorly; sides of head lacking erect setae; other pilosity similar to minor worker; color dark brown.
Measurements, minor worker: HW 0.46, HL 0.55, SL 0.58, EL 0.13, WL 0.69, PSL 0.04, PTW 0.09, PPW 0.14, CI 85, SI 126, PSLI 10, PPI 154 (n=2).
Measurements, major worker: HW 0.91, HL 0.98, SL 0.62, EL 0.15, WL 0.84, PSL 0.07, PTW 0.15, PPW 0.23, CI 92, SI 68, PSLI 9, PPI 152 (n=3).
In Economo et al. (2019) this species (as JTL200) is very close to Pheidole angusticeps. The measurements and general habitus are similar, but the species differ strongly in color of the minors and majors (black vs. orange) and the sculpture of the major face (mostly smooth and shiny vs. entirely foveolate).
Distribution
Latitudinal Distribution Pattern
Latitudinal Range: 15.04367° to 15.04367°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: AntMaps
Distribution based on Regional Taxon Lists
Neotropical Region: Guatemala (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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| Paratype. Worker (minor). Specimen code CASENT0646604. Photographer Michele Esposito, uploaded by California Academy of Sciences. | Owned by CAS, San Francisco, CA, USA. |
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- angustinigra. Pheidole angustinigra Longino, 2019: 23, fig. 15 (w.) GUATEMALA.
Type Material
- HOLOTYPE: 1 major worker, Guatemala, Zacapa: 7.5km NE Teculután, 15.04367 -89.67501 ±200 m, 475 m, 28-Jun-2009, grassy slope, at bait (J. Longino, JTL6776-s) [MCZC, unique specimen identifier CASENT0612769].
- PARATYPES: major, minor workers: same data as holotype [CAS, MCZC, USNM, UVGC]; same data except JTL6787-s [DZUP]; same data except JTL6788-s [JTLC].
Description
see the identification section above
Etymology
Related to P. angusticeps, with black color.
References
- Economo, E.P., Huang, J.-P., Fischer, G., Sarnat, E. M., Narula, N., Janda, M., Guénard, B., Longino, J.T. & Knowles, L.L. 2019. Evolution of the latitudinal diversity gradient in the hyperdiverse ant genus Pheidole. Global Ecology and Biogeography, 28:456–470. doi:10.1111/geb.12867
- Longino, J.T. 2019. Pheidole (Hymenoptera, Formicidae) of Middle American Wet Forest. Zootaxa 4599: 1–126 (DOI 10.11646/zootaxa.4599.1.1).
References based on Global Ant Biodiversity Informatics
- Longino J. T. 2019. Pheidole (Hymenoptera, Formicidae) of Middle American wet forest. Zootaxa 4599: 1-126