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Phrynoponera sveni
| Phrynoponera sveni | |
|---|---|
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Ponerinae |
| Tribe: | Ponerini |
| Genus: | Phrynoponera |
| Species: | P. sveni |
| Binomial name | |
| Phrynoponera sveni (Forel, 1916)
| |
Samples of this species have been collected from rotten logs, in leaf litter samples, in pitfall traps, and from termitaries.
Identification
Keys including this Species
Distribution
Latitudinal Distribution Pattern
Latitudinal Range: 2.4167° to -12.427°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: AntMaps
Distribution based on Regional Taxon Lists
Afrotropical Region: Cameroun, Central African Republic, Democratic Republic of Congo (type locality), Gabon, United Republic of Tanzania.
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
Images from AntWeb
     
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| Worker. Specimen code casent0417555. Photographer April Nobile, uploaded by California Academy of Sciences. | Owned by CAS, San Francisco, CA, USA. |
   
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| Worker. Specimen code sam-hym-c010477. Photographer April Nobile, uploaded by California Academy of Sciences. | Owned by SAMC, Cape Town, South Africa. |
Queen
   
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Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- sveni. Pachycondyla (Bothroponera) sveni Forel, 1916: 398 (w.) DEMOCRATIC REPUBLIC OF CONGO. Combination in Phrynoponera: Wheeler, W.M. 1922a: 80. See also: Bolton & Fisher, 2008b: 49.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Worker
Bolton and Fisher (2008) - TL 10.5-11.4, HL 2.20-2.36, HW 2.15-2.26, CI 95-98, SL 1.88-2.00, SI 86-91, PW 1.76-1.88, WL 3.20-3.48, maximum diameter of eye 0.52-0.58, OI 24-27 (7 measured).
Mandible with 4 teeth, smooth with scattered setal pits; some fine striation also may be present. Median portion of anterior clypeal margin shallowly convex to almost flat, lacking a prominent tooth on each side of the midline. Dorsum of head irregularly rugose to reticulate-rugose medially, the rugae sometimes smeared and confluent, chaotic rather than well defined. More laterally on dorsum the sculpture becomes more strongly reticulate-rugose, never with sharply defined costulae that radiate from the midline. Outer pair of petiolar spines very much longer than the median spine; intermediate spines slender and distinctly shorter than the median. Gastral tergites 1 and 2 finely longitudinally costulate on a reticulate-punctate background sculpture. Gastral tergite 3 reticulate-punctate only, or with a few feeble costulae present. Mesosoma, petiole and gaster with patches of cuticle that show dull metallic blue reflections.
All specimens examined had 4 teeth on the mandible, but because other species show some variation in this, individuals with 5 teeth are probably to be expected. Cephalic sculpture is coarse and disorganised. In some specimens the reticulate rugae are quite sharply defined everywhere, the reticulae becoming more broad towards the lateral margins. In others, the rugae near the midline are close-packed and blunted, the reticulae small, and the overall appearance is of coarse but chaotic sculpture. In some other species, blue metallic reflections are frequent on the propodeal declivity and elsewhere, but in sveni they are more widely distributed and appear always to be present.
Type Material
Bolton and Fisher (2008) - Syntype workers, DEMOCRATIC REPUBLIC OF CONGO: no loc. (Kohl) (Musee d'Histoire Naturelle Genève) [examined].
References
- Bolton, B. and B. L. Fisher. 2008. The Afrotropical ponerine ant genus Phrynoponera Wheeler. Zootaxa. 1892:35-52. PDF
- Forel, A. 1916. Fourmis du Congo et d'autres provenances récoltées par MM. Hermann Kohl, Luja, Mayné, etc. Reue. Suisse de Zoologie. 24:397-460.
- Wheeler, W. M. 1922b. Ants of the American Museum Congo expedition. A contribution to the myrmecology of Africa. II. The ants collected by the American Museum Congo Expedition. Bull. Am. Mus. Nat. Hist. 45: 39-269 (page 80, Combination in Phrynoponera)
References based on Global Ant Biodiversity Informatics
- Bolton B., and B. L. Fisher. 2008. The Afrotropical ponerine ant genus Phrynoponera Wheeler (Hymenoptera: Formicidae). Zootaxa 1892: 35-52.
- Bolton, B. and B.L. Fisher. 2008. Afrotropical ants of the ponerine genera Centromyrmex Mayr, Promyopias Santschi gen. rev. and Feroponera gen. n., with a revised key to genera of African Ponerinae (Hymenoptera: Formicidae). Zootaxa 1929:1-37.
- IZIKO South Africa Museum Collection