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Strumigenys xenomastax
| Strumigenys xenomastax | |
|---|---|
| |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Attini |
| Genus: | Strumigenys |
| Species: | S. xenomastax |
| Binomial name | |
| Strumigenys xenomastax (Bolton, 2000)
| |
Known from the type material, collections from a litter-sample and a rotten log in a rainforest.
Identification
The only member of the Strumigenys xenomastax-group.
Keys including this Species
Distribution
Distribution based on Regional Taxon Lists
Indo-Australian Region: New Guinea (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.
- xenomastax. Pyramica xenomastax Bolton, 2000: 471 (w.q.m.) NEW GUINEA. Combination in Strumigenys: Baroni Urbani & De Andrade, 2007: 130
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 1.6, HL 0.45, HW 0.31, CI 69, ML 0.10, MI 22, SL 0.20, SI 65, PW 0.21, AL 0.44. Eye relatively large, with 4 ommatidia in the longest row and about 11 ommatidia in total. Petiole node in dorsal view slightly broader than long. Ventral spongiform curtain of petiole well developed but lateral lobes very small, scarcely more than a slight expansion of the narrow posterodorsal collar. Dorsolateral margin of head with an inconspicuous short, freely projecting simple apicoscrobal hair; this hair scarcely differentiated from others on the margin. Standing hairs sparse on dorsal surfaces of head and alitrunk, only slightly longer and more elevated than the ground-pilosity. First gastral tergite with sparse simple short standing hairs and minute appressed pubescence. Dorsal (outer) surfaces of middle and hind tibiae with apically curved small hairs that are subappressed to appressed; without elongate freely projecting hairs. Dorsum of head behind clypeus and dorsal alitrunk finely and densely reticulate-punctate; pronotal dorsum also with some extremely feeble longitudinal rugulae. Disc of postpetiole and first gastral tergite smooth. Basigastral costulae sparse and short but well developed.
Paratypes. TL 1.5-1.6, HL 0.42-0.44, HW 0.29-0.30, CI 68-69, ML 0.09, MI 20-21, SL 0.18-0.19, SI 60-66, PW 0.18-0.20, AL 0.38-0.42 (2 measured).
Type Material
Holotype worker, Papua New Guinea: Ambunti, 4°13'S, 142°49'E, 150 m., 12.ii.1989, sifted litter (leaf mold, rotten wood) rainforest, #10186-28 (P. S. Ward) (The Natural History Museum).
Paratypes, 2 workers, 1 queen, 1 male, same locality but 50 m., 2.vii.1980, ex rotten log, lowland rainforest, #4648 (P. S. Ward) (BMNH, Museum of Comparative Zoology).
References
- Baroni Urbani, C. & De Andrade, M.L. 2007. The ant tribe Dacetini: limits and constituent genera, with descriptions of new species. Annali del Museo Civico di Storia Naturale “G. Doria” 99:1-191.
- Bolton, B. 2000. The ant tribe Dacetini. Memoirs of the American Entomological Institute. 65:1-1028. (page 471, worker described)
References based on Global Ant Biodiversity Informatics
- Bolton, B. 2000. The Ant Tribe Dacetini. Memoirs of the American Entomological Institute 65
- Janda M., G. D. Alpert, M. L. Borowiec, E. P. Economo, P. Klimes, E. Sarnat, and S. O. Shattuck. 2011. Cheklist of ants described and recorded from New Guinea and associated islands. Available on http://www.newguineants.org/. Accessed on 24th Feb. 2011.