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Strumigenys ulteria
| Strumigenys ulteria | |
|---|---|
| |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Attini |
| Genus: | Strumigenys |
| Species: | S. ulteria |
| Binomial name | |
| Strumigenys ulteria Bolton, 2000
| |
The two type workers, the only specimens of this species, were found in a montane forest soil-core sample.
Identification
Bolton (2000) - A member of the ebbae complex in the Strumigenys koningsbergeri-group. One of four relatively large species (with HL 0.75-0.80, HW 0.60-0.67) in the ebbae-complex, together with Strumigenys babelina, Strumigenys baladria and Strumigenys incomposita. S. ulteria is differentiated from these, and from all others in the complex, by the unique form of the mandible, described above. Other species with a strongly developed mandibular lamella (Strumigenys kapryx, Strumigenys menueta, Strumigenys synchysis) have both the lamella and the mandible differently shaped, and should not be confused with ulteria.
Keys including this Species
Distribution
Distribution based on Regional Taxon Lists
Indo-Australian Region: Borneo (type locality), Indonesia, Malaysia.
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.
- ulteria. Strumigenys ulteria Bolton, 2000: 855, fig. 456 (w.) BORNEO.
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 3.0, HL 0.78, HW 0.64, CI 82, ML 0.36, MI 46, SL 0.44, SI 69, PW 0.35, AL 0.80. With characters of ebbae-complex. Preapical tooth stoutly conical and widely separated from apicodorsal tooth; length of preapical tooth almost equal to width of mandible at point where it arises. Inner margin of mandible sinuate, with a prominent translucent lamella. Lamella narrow near base of mandible where its margin is shallowly concave; thereafter margin shallowly convex, increasing in width distally to about level of midlength of mandible then narrowing and terminating just proximal of the preapical tooth. Outer margin of mandible shallowly concave through about the middle one-third of its length. Preocular concavity in ventrolateral margin of head conspicuous, broad and shallow. Upper scrobe margins evenly divergent and almost straight from frontal lobes posteriorly; only extreme tip of eye visible in full-face view or eye not visible. Dorsum of head in profile with short erect hairs along occipital margin, 1-2 on dorsum of occipital lobe and a single pair at highest point of vertex; without erect hairs anterior to this. Pronotum with a single pair of short standing hairs, close to anterodorsal margin. Mesonotum with a single pair of short erect hairs. Katepisternum smooth, metapleuron and side of propodeum mostly to entirely smooth. Bullae of femoral glands small but easily visible on middle and hind legs. Lamella on propodeal declivity narrow, with posterior (free) margin shallowly concave to straight. Dorsum of petiole node not densely reticulate-punctate, superficially sculptured to almost as smooth as disc of postpetiole. Standing hairs on first gastral tergite simple.
Paratypes. TL 2.9-3.0, HL 0.76-0.80, HW 0.63-0.67, CI 82-84, ML 0.36, MI 45-47, SL 0.42-0.44, SI 65-69, PW 0.35-0.36, AL 0.80-0.84 (3 measured).
Type Material
Holotype worker, Malaysia: Sarawak, 4th Division, Gn. Mulu N. P., 1930 m., v.-viii.1978, B. M. 1978-49 (P. M. Hammond & J.E. Marshall) (The Natural History Museum). Paratypes. 1 worker with same data as holotype; 2 workers with same data but 2070 m.; 2 workers with same locality data but 17.iii.1978, 2070 m., montane forest, soil core (N. M. Collins) (BMNH, Museum of Comparative Zoology, Musee d'Histoire Naturelle Genève).
References
- Bolton, B. 2000. The ant tribe Dacetini. Memoirs of the American Entomological Institute. 65:1-1028. (page 855, fig. 456 worker described)
References based on Global Ant Biodiversity Informatics
- Pfeiffer M.; Mezger, D.; Hosoishi, S.; Bakhtiar, E. Y.; Kohout, R. J. 2011. The Formicidae of Borneo (Insecta: Hymenoptera): a preliminary species list. Asian Myrmecology 4:9-58