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Camponotus hagensii
| Camponotus hagensii | |
|---|---|
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Formicinae |
| Tribe: | Camponotini |
| Genus: | Camponotus |
| Subgenus: | Myrmosaga |
| Species: | C. hagensii |
| Binomial name | |
| Camponotus hagensii Forel, 1886
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Camponotus hagensii is known mostly from montane rainforest, montane ericoid thicket, philipia forest, montane shrubland, and savannah grassland of the high plateau ranging from the PN Marojejy in the north to the Anosyenne Mountains in the south of Madagascar (Fig. 56D). The species has been found nesting in the ground, in root mat layers on the ground, and in rotting tree stumps. Workers have been found foraging frequently on the ground and leaf litter, rarely on low vegetation. (Rakotonirina & Fisher, 2022)
Identification
In full-face view, lateral margin of head anterior to eye level diverging posteriorly and covered with erect hairs; anterior clypeal margin truncate; mesosoma in profile low and long; gastral tergites without abundant pubescence; head and gaster black, mesosoma reddish orange to brown.
Camponotus hagensii is similar to [[Camponotus aurosus] with respect to the bicolored body and the presence of erect hairs on the lateral margin of the head anterior to eye level, but in C. aurosus the anterior clypeal margin is broadly triangular, the mesosoma is short and high in profile, and the gastral tergites are covered with abundant pubescence.
Keys including this Species
Distribution
Distribution based on Regional Taxon Lists
Malagasy Region: Madagascar (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
Images from AntWeb
   
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| Paralectotype of Camponotus hagensii. Worker (major/soldier). Specimen code casent0101494. Photographer April Nobile, uploaded by California Academy of Sciences. | Owned by MNHN, Paris, France. |
   
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| Paralectotype of Camponotus hagensii. Worker (major/soldier). Specimen code casent0104632. Photographer April Nobile, uploaded by California Academy of Sciences. | Owned by ZMHB, Berlin, Germany. |
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- hagensii. Camponotus rubripes r. hagensii Forel, 1886f: 158 (s.w.) MADAGASCAR.
- Forel, 1895c: 244 (q.m.).
- Combination in C. (Myrmoturba): Forel, 1914a: 267;
- combination in C. (Tanaemyrmex): Emery, 1925b: 92.
- Subspecies of maculatus: Forel, 1891b: 27 (redescription); Emery, in Dalla Torre, 1893: 233, 241 (footnote); Emery, 1896d: 370 (in list).
- Subspecies of fumidus: Santschi, 1922c: 101.
- Status as species: Dalla Torre, 1893: 233; Forel, 1895c: 244; Forel, 1914a: 267; Emery, 1920c: 6, 9 (in key); Wheeler, W.M. 1922a: 1039; Emery, 1925b: 92; Bolton, 1995b: 102.
Type Material
- Lectotype minor worker, by present designation, Centre de Madagascar (Hildebrandt) AntWeb CASENT0910112 (MHNG) [Rakotonirina & Fisher, 2022].
- Paralectotypes: 2 minor workers and 3 major workers of same data as lectotype but respectively specimen coded as: FOCOL2423, FOCOL2424 (ZMHB), and CASENT0910111 (MHNG), CASENT0104632 and FOCOL2422 (ZMHB), CASENT0101494 (MNHN) [Rakotonirina & Fisher, 2022].
Description
References
- Dalla Torre, K. W. von. 1893. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. Vol. 7. Formicidae (Heterogyna). Leipzig: W. Engelmann, 289 pp. (page 233, Raised to species)
- Emery, C. 1920d. Studi sui Camponotus. Bull. Soc. Entomol. Ital. 52: 3-48 (page 6, Raised to species)
- Emery, C. 1925d. Hymenoptera. Fam. Formicidae. Subfam. Formicinae. Genera Insectorum 183: 1-302 (page 92, Combination in C. (Tanaemyrmex))
- Emery, C. 1925d. Hymenoptera. Fam. Formicidae. Subfam. Formicinae. Genera Insectorum 183: 1-302 (page 92, Raised to species)
- Forel, A. 1886h. Études myrmécologiques en 1886. Ann. Soc. Entomol. Belg. 30: 131-215 (page 158, soldier, worker described)
- Forel, A. 1891c. Les Formicides. [part]. In: Grandidier, A. Histoire physique, naturelle, et politique de Madagascar. Volume XX. Histoire naturelle des Hyménoptères. Deuxième partie (28e fascicule). Paris: Hachette et Cie, v + 237 pp. (page 27, Race of maculatus)
- Forel, A. 1895d. Nouvelles fourmis de l'Imerina oriental (Moramanga etc.). Ann. Soc. Entomol. Belg. 39: 243-251 (page 244, queen, male described)
- Forel, A. 1914a. Le genre Camponotus Mayr et les genres voisins. Rev. Suisse Zool. 22: 257-276 (page 267, Combination in C. (Myrmoturba))
- Forel, A. 1914a. Le genre Camponotus Mayr et les genres voisins. Rev. Suisse Zool. 22: 257-276 (page 267, Raised to species)
- Rakotonirina, J.C., Fisher, B.L. 2022. Revision of the Malagasy Camponotus subgenus Myrmosaga (Hymenoptera, Formicidae) using qualitative and quantitative morphology. ZooKeys 1098: 1–180 (doi:10.3897/zookeys.1098.73223).
- Santschi, F. 1922d. Camponotus néotropiques. Ann. Soc. Entomol. Belg. 62: 97-124 (page 101, Race of fumidus)
- Wheeler, W. M. 1922k. Ants of the American Museum Congo expedition. A contribution to the myrmecology of Africa. IX. A synonymic list of the ants of the Malagasy region. Bull. Am. Mus. Nat. Hist. 4 45: 1005-1055 (page 1039, Raised to species)
References based on Global Ant Biodiversity Informatics
- Fisher B. L. 1997. Biogeography and ecology of the ant fauna of Madagascar (Hymenoptera: Formicidae). Journal of Natural History 31: 269-302.
- Fisher B. L. 2003. Formicidae, ants. Pp. 811-819 in: Goodman, S. M.; Benstead, J. P. (eds.) 2003. The natural history of Madagascar. Chicago: University of Chicago Press, xxi + 1709 pp.
- Forel A. 1886. Études myrmécologiques en 1886.. Annales de la Société Entomologique de Belgique. 30: 131-215.