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Camponotus kelimaso
| Camponotus kelimaso | |
|---|---|
| |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Formicinae |
| Tribe: | Camponotini |
| Genus: | Camponotus |
| Subgenus: | Myrmosaga |
| Species: | C. kelimaso |
| Binomial name | |
| Camponotus kelimaso Rakotonirina & Fisher, 2022
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The distribution of C. kelimaso is limited to the eastern lowland rainforest of Madagascar between the Makirovana forest in the north and the Forêt d’Ambalagoavy Nord in the south. It nests mainly in rotten logs and rarely in root mat layers in the ground. Foraging is carried out on the ground and through leaf litter.
Identification
Rakotonirina and Fisher (2022) - In full-face view, lateral margins of head anterior to eye level diverging posteriorly; anterior clypeal margin truncate; dorsum of second and third abdominal tergites lacking white spot; propodeal dorsum straight; body color dark brown; antennal scape without erect hairs.
Camponotus kelimaso can be separated from Camponotus immaculatus by its straight propodeal dorsum. It can be differentiated from C. lubbocki by the approximately straight posterior margin of the head and its small compound eyes.
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
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- kelimaso. Camponotus kelimaso Rakotonirina & Fisher, 2022: 120, figs. 34B, 35A, 37A, 63 (w.) MADAGASCAR.
- Type-material: holotype worker (caste not indicated), 3 paratype minor workers.
- Type-locality: holotype Madagascar: Antsiranana, PN Marojejy, Manantenina River, 27.6 km. 35° NE Andapa, 9.6 km. 327° NNW Manantenina, -14.435, 49.76, 775 m., 16.xi.2003, BLF09010 (B.L. Fisher, et al.); paratypes with same data.
- Type-depositories: CASC (holotype); BMNH, CASC, PBZT (paratypes).
- Distribution: Madagascar.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Worker
Morphological measurements: see Appendix 1 and Ratios of morphometric data for majors and minors
Minor In full-face view, head sides diverging towards anterior to level of eye, evenly rounding to approximately straight posterior margin; head widest at eye level; eyes almost flattened and small (EL/CS: 0.19±0.01; 0.16–0.21), not breaking lateral cephalic margin, level of posterior margin located approximately at posterior 1/3 of head (PoOc/CL: 0.28±0.01; 0.27–0.29); frontal carinae more or less wide (FR/CS: 0.31±0.02; 0.28–0.34), posteriorly diverging, distance between them smaller than their smallest distance to eye; clypeus with anterolateral angle and approximately straight anteromedian margin; mandible with two apical teeth distantly spaced; antennal scape relatively short (SL/CS: 1.19±0.05; 1.11–1.27). Promesonotum weakly convex; mesonotum with posterior portion flat immediately anterior to weakly visible metanotal groove; propodeal dorsum almost straight, its angle to declivity widely rounded; propodeal dorsum ca. 2 × as long as declivity. Petiolar node flattened anteroposteriorly, without obvious dorsal margin; anterior face almost the same height as posterior face; femur of hind leg rounded axially, not twisted basally.
First and second gastral tergites without a pair of white spots; lateral cephalic margin with erect hairs anterior to level of eyes; no erect hairs on lateral margin of head posterior to eye level; two erect hairs present near posterior margin; antennal scape only covered with appressed hairs; pronotum with few erect hairs; mesonotum with a pair of erect hairs; two erect hairs present on anterior to posterodorsal corner of propodeum. Body color reddish brown to pale brown.
Major Differing from minor worker in the following characters: enlarged head (CS: 2.83±0.25; 2.35–3.15; CWb/CL: 0.99±0.04; 0.92–1.04) with broadly concave posterior margin; apical 1/4 of antennal scape surpassing posterior cephalic margin; robust mesosoma with separate convexity of promesonotum, lower position of metanotum and propodeum, propodeal dorsum approximately the same length as declivity surface and with rounded junction; petiolar node more flattened anteroposteriorly.
Type Material
- Holotype worker. MADAGASCAR: Province Antsiranana: PN Marojejy, Manantenina River, 27.6 km 35° NE Andapa, 9.6 km 327° NNW Manantenina, -14.435, 49.76, 775 m, rainforest, ex rotten log, 16 Nov 2003 (B.L. Fisher et al.) collection code: BLF09010, specimen code: CASENT0487718 (CAS).
- Paratypes. 3 minor workers of same data as holotype but specimens coded as: CASENT0837637, CASENT0837636, CASENT0837635 (NHMUK, PBZT, CAS).
Etymology
The species name kelimaso is a non-latin word derived from the Malagasy word for “small eye”. It refers to the fact that its compound eyes are small compared to those of other species in the subgenus Myrmosaga.