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Strumigenys wardi
| Strumigenys wardi | |
|---|---|
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Attini |
| Genus: | Strumigenys |
| Species: | S. wardi |
| Binomial name | |
| Strumigenys wardi Fisher, 2000
| |
Known from a range of wet forest types, with most specimens taken from litter samples. One collection was made from a rotten log.
Identification
Bolton (2000) - A member of the sylvaini complex in the Strumigenys dexis-group. Distinguished from other members of the sylvaini-complex by having: 1 Erect short simple hairs present on dorsal surfaces of head, alitrunk, waist segments and first gastral tergite. 2 The postpetiole disc finely longitudinally costulate. 3 The first gastral tergite without standing hairs between the apical and basal rows.
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
Worker
Images from AntWeb
   
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| Worker. Specimen code casent0005899. Photographer April Nobile, uploaded by California Academy of Sciences. | Owned by MCZ, Cambridge, MA, USA. |
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- wardi. Strumigenys wardi Fisher, in Bolton, 2000: 645 (w.) MADAGASCAR.
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 2.2, HL 0.58, HW 0.48, CI 83, ML 0.15, MI 26, SL 0.26, SI 54, PW 0.29, AL 0.60. Characters of sylvaini-complex. Entirety of head blanketed with fine, dense reticulate-punctate sculpture, opaque everywhere. Dorsum of head without scale-like hairs that are similar in size to those on the fringing rows. Instead the head dorsally with sparse, minute and inconspicuous decumbent to appressed spatulate hairs, and with a row of 4 short erect hairs close to the occipital margin. Eye with 4-5 ommatidia in the longest row. Dorsal alitrunk and petiole node finely reticulate-punctate, the postpetiole disc finely longitudinally costulate. Pleurae smooth and shining. Mesonotum with a single pair of short standing hairs, standing hairs also present as follows: 1 pair posterodorsally on the petiole node, 2 pairs posterodorsally on the postpetiole, a basal and an apical transverse row on the first gastral tergite. Lamella of propodeum narrow below the triangular propodeal spines, leaving most of the spine length free. Petiole node in dorsal view distinctly broader than long. Disc of postpetiole in dorsal view not completely surrounded by spongiform tissue, the anterolateral angles and anterior halves of the sides free. Basigastral costulae short but well developed and conspicuous.
Measurements of this material extends the range shown by the holotype: HL 0.59-0.63, HW 0.49-0.52, CI 81-83, ML 0.15-0.16, MI 26.
Type Material
Holotype worker, Madagascar: 5 km. SW Antalaha, 50 m., 6.xii.1993, 14°56'17"S, 50°15'42"E, secondary forest, Winkler app. 280.13485w (G. D. Alpert) (Museum of Comparative Zoology).
References
- Fisher, B.L. 2000. The Malagasy fauna of Strumigenys. Pp. 612-696 in: Bolton, B. 2000. The ant tribe Dacetini. Memoirs of the American Entomological Institute. 65:1-1028. (page 645, worker described)
References based on Global Ant Biodiversity Informatics
- Bolton, B. 2000. The Ant Tribe Dacetini. Memoirs of the American Entomological Institute 65
- 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.