Strumigenys lasia
Strumigenys lasia | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Hymenoptera |
Family: | Formicidae |
Subfamily: | Myrmicinae |
Tribe: | Attini |
Genus: | Strumigenys |
Species: | S. lasia |
Binomial name | |
Strumigenys lasia (Brown, 1976) |
A forest species that has been collected from litter samples.
Identification
Bolton (2000) - The only member of the Strumigenys lasia-group. Cephalic dorsum finely loosely reticulate-rugulose. Pronotum flat, dorsum smooth with scattered small punctures. Remainder of dorsal alitrunk reticulate-punctate. Side of alitrunk mostly smooth, with fine puctulation on the propodeal side, at least in front of the spiracle. Dorsum of petiole and disc of postpetiole densely punctulate-rugulose.
Keys including this Species
Distribution
Latitudinal Distribution Pattern
Latitudinal Range: -2.234166667° to -2.234166667°.
North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: AntMaps
Distribution based on Regional Taxon Lists
Afrotropical Region: Gabon (type locality), Uganda.
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. |
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. |
Biology
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Castes
Images from AntWeb
Worker. Specimen code casent0280698. Photographer Estella Ortega, uploaded by California Academy of Sciences. | Owned by NHMUK, London, UK. |
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- lasia. Cladarogenys lasia Brown, 1976b: 34, figs. 1-5, A-D (w.) GABON. Combination in Pyramica: Bolton, 1999: 1672; in Strumigenys: Baroni Urbani & De Andrade, 2007: 122. See also: Bolton, 2000: 308.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Worker
TL 2.8-3.2, HL 0.68-0.70, HW 0.50-0.52, CI 74, ML 0.30-0.32, MI 43-46, SL 0.46-0.52, SI 92-98, PW 0.40-0.42, al 0.80-0.82 (3 measured).
Bolton (1983) - TL 3.2, HL 0.70, HW 0.52, CI 74, ML 0.32, MI 46, SL 0.55, SI 106, AL 0.54.
Mandibles as noted under the generic diagnosis. Anterior clypeal margin prominent medially but not overlapping the bases of the mandibles. Posterodorsal margins of head forming a raised rim which extends to the posterolateral margin, expanded into a small flat truncated tubercle on each side and with a similar but smaller tubercle in front of this, just dorsal to the eye on each side. Dorsum of head densely clothed with simple fine hairs and with a long flagellate hair arising from the tubercle above the eye on each side. Dorsum of head irregularly rugulose, the spaces between the rugulae reticulate-punctate; clypeal dorsum reticulate-punctate. Posterodorsal corners of vertex with a sulcus which parallels the rim and is composed of 3-4 partially confluent foveae with concave shining bottoms. Pronotal humeri bluntly tuberculate and equipped with a pair of long flagellate hairs. Metanotal groove impressed. Pronotal dorsum shining, with quite dense shallow foveolae, the remainder of the dorsal alitrunk reticulate-punctate with superimposed rugulae, some of them enclosing irregular pits. Sides of pronotum finely punctate, mesopleuron finely punctulate and remainder of pleuron smooth; sides of propodeum reticulate-punctate. Petiole and postpetiole punctulate-rugulose. Gaster smooth with conspicuous basal costulae. Entire dorsum of body densely clothed with fine simple pilosity, and with paired long flagellate hairs on mesonotum and petiole. Postpetiole with several and gaster with more than 30 flagellate hairs.
Type Material
Bolton (1983) - Holotype worker, GABON: or Makokou, Laboratoire de Primatologie et d'Ecologie Equatoriale, ix.-xii.1972, berIesate of rain forest litter and humus (I. Lieberburg) (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. 1983. The Afrotropical dacetine ants (Formicidae). Bull. Br. Mus. (Nat. Hist.) Entomology. 46:267-416.
- Bolton, B. 1999. Ant genera of the tribe Dacetonini (Hymenoptera: Formicidae). Journal of Natural History. 33:1639-1689. (page 1672, combination in Pyramica)
- Bolton, B. 2000. The ant tribe Dacetini. Mem. Am. Entomol. Inst. 65:1-1028 (page 308, redescription of worker)
- Brown, W. L., Jr. 1976b. Cladarogenys lasia species nov. Pilot Regist. Zool. Card No. 34. (page 34, figs. 1-5, A-D worker described)
References based on Global Ant Biodiversity Informatics
- Bolton B. 1983. The Afrotropical dacetine ants (Formicidae). Bulletin of the British Museum (Natural History). Entomology 46: 267-416.
- Bolton B. 1999. Ant genera of the tribe Dacetonini (Hymenoptera: Formicidae). Journal of Natural History 33: 1639-1689.
- Bolton, B. 2000. The Ant Tribe Dacetini. Memoirs of the American Entomological Institute 65
- Brown W. L. J. 1976. Cladarogenys lasia species nov. Pilot Register of Zoology. Card No. 34: 1-2.