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Strumigenys epyna
| Strumigenys epyna | |
|---|---|
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Attini |
| Genus: | Strumigenys |
| Species: | S. epyna |
| Binomial name | |
| Strumigenys epyna Bolton, 2000
| |
Known from a fogging sample type specimen taken within a forest reserve.
Identification
Bolton (2000) - A member of the mjoebergi complex in the Strumigenys godeffroyi-group. S. epyna is closely related to Strumigenys phytibia, Strumigenys phoenix and Strumigenys zagan, all of which have a fine flagellate hair at the pronotal humerus. S. epyna has different pilosity and shorter basigastral costulae than phytibia, and lacks that species characteristic longitudinal costulate sculpture on the postpetiole disc. The other two, phoenix and zagan, have a low expanded cuticular crest on the inner margin of the mandible in about the median third of its length. This feature is absent from epyna, and incidentally also absent from phytibia and all other members of the complex.
Keys including this Species
Distribution
Distribution based on Regional Taxon Lists
Indo-Australian Region: Malaysia (type locality), Singapore.
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.
- epyna. Strumigenys epyna Bolton, 2000: 801 (w.) WEST MALAYSIA.
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 0.56, HW 0.39, CI 70, ML 0.26, MI 46, SL 0.34, SI 87, PW 0.24, AL 0.55. Characters of mjoebergi-complex. Apicoscrobal hair stiff, simple to remiform. With head in full-face view the ventrolateral margin visible behind the level of the eye. Cephalic dorsum with 4 erect simple hairs close to the occipital margin, head without other standing hairs. Pronotal humeral hair flagellate; mesonotum with a pair of erect stout hairs; dorsal alitrunk otherwise without standing hairs. Side of alitrunk reticulate-punctate except for a smooth patch on katepisternum. Lateral spongiform lobe of petiole small, in profile confined to posterior margin of node. Disc of postpetiole finely densely reticulate to finely reticulate-punctate. Basigastral costulae strongly defined, as long as or slightly longer than disc of postpetiole but not extending half the length of the tergite. First gastral tergite with stiff blunt standing hairs that may be weakly remiform or slightly flattened and expanded apically; second tergite with a pair of flagellate hairs.
Type Material
Holotype worker, Malaysia: Negri Semhilan, Pasoh For. Res., iii.-iv.1994, fog sample, 2-33 (Brendell, Jackson & Ficken) (The Natural History Museum).
Determination Clarifications
This species was referred to as Strumigenys sp. B in Bolton, 1998b: 95.
References
- Bolton, B. 2000. The ant tribe Dacetini. Memoirs of the American Entomological Institute. 65:1-1028. (page 801, worker described)
- Wang, W.Y., Soh, E.J.Y., Yong, G.W.J., Wong, M.K.L., Benoit Guénard, Economo, E.P., Yamane, S. 2022. Remarkable diversity in a little red dot: a comprehensive checklist of known ant species in Singapore (Hymenoptera: Formicidae) with notes on ecology and taxonomy. Asian Myrmecology 15: e015006 (doi:10.20362/am.015006).