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Pheidole horribilis
| Pheidole horribilis | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Attini |
| Genus: | Pheidole |
| Species: | P. horribilis |
| Binomial name | |
| Pheidole horribilis Wilson, 2003 | |
From Wilson (2003): At Cuzco Amazónico, Peru, minor workers were found foraging on the ground and on top of a log in rainforest; one was carrying a termite worker, col. Stefan Cover and John E. Tobin. Winged queens were present in a nest at Yasuni National Park, Ecuador, in April, col. S. O’Donnell.
Identification
See the description in the nomenclature section.
Keys including this Species
Distribution
Known from the type colony as well as series collected at Yasuni National Park, Puerto Tiputini, Ecuador; and Cuzco Amazónico, near Puerto Maldonado, Madre de Dios, Peru. (Wilson 2003)
Latitudinal Distribution Pattern
Latitudinal Range: -0.6258° to -4.1°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: AntMaps
Distribution based on Regional Taxon Lists
Neotropical Region: Ecuador (type locality), Peru.
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.
- horribilis. Pheidole horribilis Wilson, 2003: 708, figs. (s.w.) ECUADOR.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
DIAGNOSIS Similar to Pheidole minax, Pheidole terribilis, Pheidole ursus, and species around Pheidole macromischoides, differing as follows.
Major: propodeal spines stout, over half as long as basal propodeal face anterior to them; posterior half of dorsal head surface carinulate and anterior half, including frontal lobes, mostly rugoreticulate; entire promesonotum rugoreticulate; anterior half of central strip of first gastral tergite shagreened; pilosity dense, erect to suberect, and long, most hairs as long as Eye Length or longer.
Minor: propodeal spine as long as propodeal basal face; promesonotum and mesopleuron almost entirely rugoreticulate; occiput narrow, with nuchal crest, rugulose and not rugoreticulate; anterior half of central strip shagreened.
MEASUREMENTS (mm) Holotype major: HW 1.88, HL 1.90, SL 0.84, EL 0.20, PW 0.94. Paratype minor: HW 0.80, HL 0.80, SL 0.86, EL 0.14, PW 0.56.
COLOR Major: head and mesosoma rich medium reddish brown; waist, gaster, and appendages yellowish brown.
Minor: body reddish yellow except for gaster, which is plain medium brown.
Figure. Upper: holotype, major. Lower: paratype, minor. Scale bars = 1 mm.
Type Material
ECUADOR: Jatun Sacha Biological Station, Misahuali, col. Peter Frumhoff. Museum of Comparative Zoology
Etymology
L horribilis, dreadful, bristly, rough.
References
- Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 708, fig. major, minor described)
- Albuquerque, E., Prado, L., Andrade-Silva, J., Siqueira, E., Sampaio, K., Alves, D., Brandão, C., Andrade, P., Feitosa, R., Koch, E., Delabie, J., Fernandes, I., Baccaro, F., Souza, J., Almeida, R., Silva, R. 2021. Ants of the State of Pará, Brazil: a historical and comprehensive dataset of a key biodiversity hotspot in the Amazon Basin. Zootaxa 5001, 1–83 (doi:10.11646/zootaxa.5001.1.1).
References based on Global Ant Biodiversity Informatics
- Bezdeckova K., P. Bedecka, and I. Machar. 2015. A checklist of the ants (Hymenoptera: Formicidae) of Peru. Zootaxa 4020 (1): 101–133.
- Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.
- Ryder Wilkie K. T., A L. Mertl, J. F. A. Traniello. 2010. Diversity of ground-dwelling ants (Hymenoptera: Formicidae) in primary and secondary forests in Amazonian Ecuador. Myrmecological News(12): 139-147