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Strumigenys sutrix
| Strumigenys sutrix | |
|---|---|
| |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Attini |
| Genus: | Strumigenys |
| Species: | S. sutrix |
| Binomial name | |
| Strumigenys sutrix Bolton, 2000
| |
Known from just a few collections, with records stating one was from a rainforest and another noting it was taken in a pitfall-trap.
Identification
Bolton (2000) - A member of the Strumigenys emmae-group. Very close to Strumigenys emmae but larger, with a narrower head and longer scapes (compare measurements). The leading edge of the scape in Strumigenys sutrix is quite evenly convex, not forming an obtusely angular lobe as in emmae. Also, the disc of the postpetiole in sutrix, in dorsal view, is narrower and more convex so that the lateral margins of the disc do not have conspicuously protruding spongiform tissue visible.
Identification Keys including this Taxon
Distribution
Latitudinal Distribution Pattern
Latitudinal Range: -11.175972° to -12.91666667°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: AntMaps
Distribution based on Regional Taxon Lists
Australasian Region: Australia (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.
- sutrix. Strumigenys sutrix Bolton, 2000: 953 (w.) AUSTRALIA.
Type Material
- Holotype, worker, Sawcut Gorge, Northern Territory, Australia, Taylor,R.W., ANIC32-017814, Australian National Insect Collection.
- Paratype, 5 workers, Sawcut Gorge, Northern Territory, Australia, Taylor,R.W., ANIC32-002163, Australian National Insect Collection.
- Paratype, 2 workers, Sawcut Gorge, Northern Territory, Australia, The Natural History Museum.
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 2.0, HL 0.55, HW 0.40, CI 73, ML 0.17, MI 31, SL 0.28, SI 70, PW 0.25, AL 0.54. Exposed length of fully closed mandible less than width of anterior clypeal margin. Preapical dentition of mandible a spiniform preapical tooth and a low blunt welt between this and the apicodorsal tooth. Antenna with 4 segments; second funicular segment distinctly longer than broad. Cephalic dorsum with very broadly spoon-shaped or orbicular hairs; upper scrobe margin fringed with similar hairs and with a more slender apicoscrobal hair that is short clavate or narrowly spoon-shaped. Occipital margin of head without short erect hairs. Leading edge of scape shallowly convex but not expanded into an obtuse angle in the median third of its length. Pronotal humeral hair stoutly clavate. Ground-pilosity of pronotal dorsum as head but the hairs tending to be smaller. Mesonotum without erect hairs. Promesonotal dorsum reticulate-punctate, without longitudinal rugulae. Disc of postpetiole usually with weak sculpture at least in part. Sides of postpetiole disc in dorsal view bare, without projecting spongiform tissue but with a few posteriorly curved spoon-shaped hairs. First gastral tergite with short suberect to erect stubbly hairs that are spatulate or broadened and flattened apically. Basigastral costulae longer than postpetiole disc.
PARATYPE. TL 2.0, HL 0.54-0.55, HW 0.39-0.40, CI 71-74, ML 0.17, MI 30-31, SL 0.28-0.29, SI 70-73, PW 0.25, AL 0.54-0.55 (4 measured).
References
- Bolton, B. 2000. The ant tribe Dacetini. Mem. Am. Entomol. Inst. 65: 1-1028 (page 953, worker described)
References based on Global Ant Biodiversity Informatics
- Andersen A. N., M. Houadria, M. Berman, and M. van der Geest. Rainforest ants of the Tiwi Islands: a remarkable centr of endemism in Australia's monsoonal tropics. Insectes Sociaux 59: 433-441.