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Carebara crigensis
| Carebara crigensis | |
|---|---|
| |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Crematogastrini |
| Genus: | Carebara |
| Species: | C. crigensis |
| Binomial name | |
| Carebara crigensis (Belshaw & Bolton, 1994)
| |
The type material was collected from leaf litter in cocoa farms in the moist forest zone.
Identification
Distribution
Latitudinal Distribution Pattern
Latitudinal Range: 6.908703° to 6.908703°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: AntMaps
Distribution based on Regional Taxon Lists
Afrotropical Region: Ghana (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.
- crigensis. Afroxyidris crigensis Belshaw & Bolton, 1994: 632, figs. 1-3 (w.) GHANA.
- Type-material: holotype worker, 1 paratype worker.
- Type-locality: holotype Ghana: Ashanti Region, Poano, 9. ix.1992, leaf litter (R. Belshaw); paratype Ghana: Ashanti region, Ofinso, 2.xi.1992, leaf litter (R. Belshaw).
- Type-depositories: BMNH (holotype); MCZC (paratype).
- Combination in Carebara: Fernández, 2004a: 235.
- Status as species: Bolton, 1995b: 61.
- Distribution: Ghana.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Worker
Minute (total length c. 1-5 mm) subterranean myrmicine ants with the following combination of characters.
Mandible with two apical teeth followed by a long oblique edentate margin and a smaller basal tooth.
Median portion of clypeus with a transverse step and without distinct longitudinal carinae.
Anterior margin of clypeus lacking an isolated median seta.
Antenna of 10 segments including a 2 segmented club.
Eye absent (its position marked by a small pigmented spot).
Frontal carinae and antennal scrobes absent.
Alitrunk compact; metanotal groove shallow in profile.
Propodeum unarmed and rounded; propodeal ( = metapleural) lobes rounded and small (not extended dorsally as lamellae).
Petiolar spiracle on the node, which is evenly rounded in profile and with a keel-like ventral process.
First gastral tergite extensively overlapping the first sternite.
Tibial spurs of middle and hind legs reduced to hairs.
Sting well developed and sabre-like.
With characters of the generic diagnosis. Colour yellow throughout. Head and body without sculpturing and with fairly dense short hairs, most of which are at an angle of approximately 45 ° to the vertical (those on the dorsum of the head are more adpressed). In full face view a triangular gap present between the mandibles at full closure and the anterior clypeal margin. Median portion of clypeus rather broadly inserted between the frontal lobes: its width similar to that of one of the frontal lobes where it passes between them. Propodeal spiracle situated near the centre of the propodeum in lateral view. Petiole with a short peduncle and a very small subpetiolar process.
TL 1.41-1.50, HL 0.39-0.41, HW 0.31, CI 79-76, SL 0.20, SI 65, PW 0.24, AL 0.41-0.42. First figure refers to holotype, the second to paratype.
Type Material
Two workers extracted by one of us (R.B.) from leaf litter in cocoa farms in the moist forest zone of Ghana, West Africa. HOLOTYPE worker from farm at Poano (Ashanti Region), collected 9.ix.1992 (now in The Natural History Museum, London, UK). PARATYPE worker from farm near Ofinso (Ashanti Region), collected 2.xi. 1992 (now in Museum of Comparative Zoology, Cambridge, MS, USA).
Etymology
From CRIG (Cocoa Research Institute of Ghana).
References
- Belshaw, R. and Bolton, B. 1994. A new myrmicine ant genus from cocoa leaf litter in Ghana (Hymenoptera: Formicidae). Journal of Natural History. 28:631-634. (page 632, figs. 1-3 worker described)
- Fernández, F. 2004a. The American species of the myrmicine ant genus Carebara Westwood (Hymentoptera: Formicidae). Caldasia 26(1): 191-238 (page 235, new combination in Carebara)
References based on Global Ant Biodiversity Informatics
- Belshaw R., and B. Bolton. 1994. A survey of the leaf litter ant fauna in Ghana, West Africa (Hymenoptera: Formicidae). Journal of Hymenoptera Research 3: 5-16.
- Belshaw R., and B. Bolton. 1994. A survey of the leaf litter ant fauna in Ghana, West Africa (Hymenoptera: Formicidae). Journal of Hymenoptera Research. 3: 5-16.