.jpg){kind=logo}
Vombisidris jacobsoni
| Vombisidris jacobsoni | |
|---|---|
| |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Crematogastrini |
| Genus: | Vombisidris |
| Species: | V. jacobsoni |
| Binomial name | |
| Vombisidris jacobsoni (Forel, 1915)
| |
Identification
Keys including this Species
Distribution
Distribution based on Regional Taxon Lists
Indo-Australian Region: Indonesia (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. |
|
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. |
|
Biology
Castes
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- jacobsoni. Atopula jacobsoni Forel, 1915a: 25 (w.) INDONESIA (Sumatra).
- Type-material: lectotype worker (by designation of Sorger, 2011a: 151), 2 paralectotype workers.
- Type-locality: lectotype Indonesia: Sumatra, Simalur I., Sinabang, i.1913 (E. Jacobson); paralectotypes with same data.
- Type-depositories: MHNG (lectotype); MHNG, MSNG (paralectotypes).
- Combination in Leptothorax: Forel, 1916: 458 (in text);
- combination in Leptothorax (Goniothorax): Emery, 1924d: 250;
- combination in Vombisidris (provisional): Bolton, 1995b: 240; Bolton, 2003: 272;
- combination in Vombisidris: Sorger, 2011a: 151.
- Status as species: Emery, 1924d: 250; Bolton, 1995b: 240; Bolton, 2003: 272; Sorger, 2011a: 151 (redescription); Xu & Yu, 2012: 1500 (in key).
- Distribution: Indonesia (Sumatra).
Description
DESCRIPTION OF WORKER: A species of the genus Vombisidris as defined by Bolton (1991), with the following characters. Colour of entire body light brown to yellow (two type specimens almost entirely light brown, one type specimen almost entirely yellow). Femora and tibiae lighter than rest of body (whitish yellow except for infuscated bases) (figs 1, 2, 3). Entire body with short thick, blunt (abruptly truncated apically) setae (some setae on postpetiole even slightly clavate); distinctly shorter setae on head (fig. 3), longer and finer setae on scapes (fig. 4). In addition, some fine, short scattered appressed hairs on gaster. Head, dorsum of mesosoma, petiole and postpetiole with distinct rugoreticulum. Spaces between costulae mostly smooth and shiny. Pronotum angulate, cervical shield with a few longitudinal ridges overlaying granulate microsculpture (figs 1, 2). Sides of mesosoma with some rugae overlaying microsculpture (fig. 3). Dorsum of petiolar peduncle with very finely reticulate sculpture. Gaster slightly depressed in lateral aspect, smooth and shiny, some short striae at base of tergite 1 (figs 1, 2, 3).Head slightly longer than wide, sides behind eyes feebly convergent (fig. 4). Eyes protruding and relatively large (EI 24, 25) containing 8-10 ommatidia in longest row. Clypeus strongly convex in lateral aspect (fig. 3), in full face view its anterior margin covered by its convexity (fig. 4). Subocular groove complete, from mandibular insertion backwards to latero-occipital margin. Mandibles smooth with some fine short hairs, hair pits indistinct (fig. 4). Dorsal and lateral faces of mesosoma forming an angle, mesosoma broadest at outer pronotal angles, continuously becoming narrower towards propodeum in dorsal aspect (maximum pronotum width ca. twice maximum propodeum width), sides feebly concave (figs 1, 2), dorsum evenly convex in lateral aspect, metanotal groove absent (fig. 3). Propodeum in dorsal aspect slender (figs 1, 2); spiracle situated below level of spines (fig. 3). Propodeal spines long, slightly downcurved in lateral aspect (fig. 3), curved inwards in dorsal aspect (figs 1, 2). Petiole (figs 1, 2, 3) with long peduncle bearing a pair of teeth in front of spiracle; anterior and dorsal face of node separated by a transverse ridge forming a blunt angle in lateral aspect, ventrally with anterolateral small teeth. Postpetiole in dorsal aspect (figs 1, 2) subtrapezoidal, widest anteriorly. Legs relatively short (FL < HW), femora and tibiae conspicuously thickened (figs 1, 2, 3).
References
- Bolton, B. 2003. Synopsis and Classification of Formicidae. Mem. Am. Entomol. Inst. 71:370pp (page 272, Combination in Vombisidris)
- Emery, C. 1924f [1922]. Hymenoptera. Fam. Formicidae. Subfam. Myrmicinae. [concl.]. Genera Insectorum. 174C:207-397. (page 250, Combination in L. (Goniothorax))
- Forel, A. 1915a. Fauna Simalurensis. Hymenoptera Aculeata, Fam. Formicidae. Tijdschr. Entomol.58: 22-43. (page 25, worker described)
- Forel, A. 1916. Fourmis du Congo et d'autres provenances récoltées par MM. Hermann Kohl, Luja, Mayné, etc. Rev. Suisse Zool. 24:397-460. (page 458, Combination in Leptothorax (in text))
- Jeenthong, T., Jaitrong, W., Tasen, W. 2023. A new species of the ant genus Vombisidris Bolton, 1991 (Hymenoptera: Formicidae: Myrmicinae) from Thailand. Tropical Natural History 23: 105-113.
- Sorger, D.M. 2011a. Redescription and history of Vombisidris jacobsoni (Forel, 1915). Revue Suisse de Zoologie 118: 149-155.
References based on Global Ant Biodiversity Informatics
- Forel A. 1915. Fauna Simalurensis. Hymenoptera Aculeata, Fam. Formicidae. Tijdschr. Entomol. 58: 22-43.
- Sorger, D. M. 2011. Redescription and history of Vombisidris jacobsoni (Forel, 1915) (Hymenoptera, Formicidae). Revue Suisse de Zoologie 118:149-155.