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Strumigenys tethepa
| Strumigenys tethepa | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Attini |
| Genus: | Strumigenys |
| Species: | S. tethepa |
| Binomial name | |
| Strumigenys tethepa (Bolton, 2000) | |
Known from the holotype worker and a non-type worker collection, the latter was found in a rainforest litter-sample.
Identification
Bolton (2000) - A member of the Strumigenys terroni-group. This relatively large and distinctive species is closely related to Strumigenys terroni, from which it is separated as follows.
S. tethepa: Head extremely dorsoventrally flattened, maximum depth of head in profile only 0.36 X HW. Height of antennal scrobe above eye about half the vertical diameter of the eye. Pronotum marginate laterally and approximately transversely flat in dorsal view. Petiole dorsum as long as broad, its sides divergent posteriorly. Petiole and postpetiole with standing hairs conspicuous on their dorsal surfaces. First gastral tergite with standing hairs distributed all over its surface. Larger species, TL 3.4-3.6, HW 0.66-0.68; scapes shorter, SI 55-56.
S. terroni: Head not remarkably flattened, maximum depth of head in profile 0.63 X HW. Height of antennal scrobe above eye about equal to the vertical diameter of the eye. Pronotum not marginate laterally, transversely evenly convex in dorsal view. Petiole dorsum broader than long, its sides weakly convex. Petiole and postpetiole with an inconspicuous row of spatulate hairs on each posterior margin that projects backwards over the spongiform collars. First gastral tergite without standing hairs. Smaller species, TL 2.5-2.6, HW 0.49-0.51; scapes longer, SI 62-63.
Keys including this Species
Distribution
Latitudinal Distribution Pattern
Latitudinal Range: 1.38333° to -2.226388889°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: AntMaps
Distribution based on Regional Taxon Lists
Afrotropical Region: Cameroun (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.
- tethepa. Pyramica tethepa Bolton, 2000: 328, figs. 214, 236 (w.) CAMEROUN. Combination in Strumigenys: Baroni Urbani & De Andrade, 2007: 129
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Worker
Holotype. TL 3.4, HL 0.98, HW 0.66, CI 67, ML 0.20, MI 20, SL 0.36, SI 55, PW 0.39, AL 0.94. With head in full-face view the slender, almost parallel-sided, mandibular blades only engage close to their apices. Basal lamella of mandible (from a paratype) very tall, higher than the maximum width of mandible from which it arises. Curved spatulate to spoon-shaped hairs that fringe the clypeus and leading edges of the scapes numerous and very conspicuous. Dorsolateral margins of head behind level of frontal lobes only with minute appressed spatulate hairs that are difficult to see and that are tiny by comparison with those fringing the clypeus. Head remarkably dorsoventrally flattened, see comparative table, below. Eye with 5-6 ommatidia across its greatest diameter. Dorsal surfaces of head behind level of clypeus and promesonotum with appressed minute ground-pilosity that is almost invisible, without standing hairs or conspicuous pilosity of any description. Short erect to suberect straight hairs numerous on dorsa of waist segments and first gastral tergite. Sculpture of cephalic dorsum and promesonotum finely punctulate-granular everywhere, the latter less strongly sculptured than the former and dully shining.
Paratype. TL 3.6, HL 1.00, HW 0.68, CI 68, ML 0.22, MI 22, SL 0.38, SI 56, PW 0.40, AL 0.98 (1 measured).
Type Material
Holotype worker, Cameroun: S of Yaounde, Ototomo For. , no. 1085 (sp. 26) (J.-L. Amiet) (The Natural History Museum).
Paratypes. 2 workers with same data as holotype (one badly damaged) (Ecole Nationale Superieure Agronomique, BMNH).
References
- Baroni Urbani, C. and de Andrade, M.L. 2007. The ant tribe Dacetini: limits and constituent genera, with descriptions of new species. Annali del Museo Civico di Storia Naturale “G. Doria”. 99:1-191.
- Bolton, B. 2000. The ant tribe Dacetini. Memoirs of the American Entomological Institute. 65:1-1028. (page 328, figs. 214, 236 worker described)
References based on Global Ant Biodiversity Informatics
- IZIKO South Africa Museum Collection