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Leptanilloides anae
| Leptanilloides anae | |
|---|---|
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Dorylinae |
| Genus: | Leptanilloides |
| Species: | L. anae |
| Binomial name | |
| Leptanilloides anae (Brandão, Diniz, Agosti & Delabie, 1999)
| |
The type series, of workers, was recorded preying on an unidentified arthropod on the soil surface, showed an army ant foraging pattern (Brandão et al. 1999).
Identification
The rounded head sides in full-face view and the deep emargination of the mesosoma is an unique combination for Leptanilloides anae.
Keys including this Species
Distribution
Latitudinal Distribution Pattern
Latitudinal Range: -4.25° to -13.066667°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: AntMaps
Distribution based on Regional Taxon Lists
Neotropical Region: Brazil (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
Jorge Diniz collected the type series over the ground on a cloudy morning in an Eucalyptus plantation near a stream (Corrego da Lima). Originally this area was covered by broad-leaved tropical forest (Marinis & Camargo, 1964). Several workers were found below a piece of cow dung, preying on an unidentified and partially eaten arthropod; from these remains departed a column of workers, in a fashion that called his attention as being similar to the usual Neivamyrmex army ants column. He came back to the same spot on the next day, and dug the hole where they were seen entering, but found no ants there. (Brandão et al. 1999)
Castes
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- anae. Asphinctanilloides anae Brandão, Diniz, et al. 1999: 32, figs. 11, 12, 19, 26, 40-43, 75-81 (w.) BRAZIL (São Paulo).
- Type-material: holotype worker, 18 paratype workers.
- Type-locality: holotype Brazil: São Paulo, Mirassol, Fazenda da Lima, 30.iv.1979, #1850 (J.L.M. Diniz); paratypes with same data.
- Type-depositories: MZSP (holotype); AMNH, BMNH, CPDC, INPA, JLDC, MCZC, MZSP (paratypes).
- Combination in Leptanilloides: Borowiec, M.L. 2016: 156.
- Distribution: Brazil.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Worker
(all non-dissected specimens, n = 16) (average, minimum and maximum; in mm): HL 0.46, 0.44–0.47; HW 0.37, 0.35–0.38; SL 0.23, 0.21–0.24; WL 0.52, 0.50–0.60; CI 80, 77–82; SI 62, 57–66, SRI 117.
The rounded head sides in full-face view and the deep emargination of the alitrunk is an unique combination for Asphinctanilloides anae Other relevant characters include: lateral blunt teeth on genae very much reduced and not produced, although present and visible in high magnifications (80 X); propodeum in profile clearly separated from mesonotum by a deep metanotal groove; propodeum evenly convex. Venom apparatus: anal plate (Fig. 77) as an equilateral triangle with rounded apex, projected, weakly sclerotized, with 6 bigger sensillae; oblong plate (Fig. 79) postincision almost reaches the margin dorsal, ventral arm developed; fulcral arm absent; gonostylus with about 60 small and 2 large sensillae; furcula with lateral wing-shaped projections elongate (Fig. 80), sclerotized and linked to the median region of the furcula in all his width, lateral arms absent (Fig. 81); sting with bulb base rounded, basal ridge not visible, probably fused to furcula, and anterolateral process as long as articular process, anterior to the articular process.
Type Material
Holotype worker deposited at MZUSP. Type-locality: Brazil, Sao Paulo, Mirassol, Fazenda da Lima, 30.iv.1979, J. L. M. Diniz coll. # 1850. Eighteen paratype workers (same series as holotype), deposited at American Museum of Natural History, The Natural History Museum, Museum of Comparative Zoology, MZUSP (six, one dissected and mounted on slide), JLMD (seven, one dissected and mounted on slide), Instituto Nacional de Pesquisas da Amazonia and CEPLAC.
Etymology
Anae, a noun in apposition, as an homage to Ana Diniz, daughter of Jorge L. M. Diniz.
References
- Borowiec, M.L. 2016. Generic revision of the ant subfamily Dorylinae (Hymenoptera, Formicidae). ZooKeys 608: 1–280 (doi: 10.3897/zookeys.608.9427).
- Brandão, C. R. F.; Diniz, J. L. M.; Agosti, D.; Delabie, J. H. C. 1999. Revision of the Neotropical ant subfamily Leptanilloidinae. Syst. Entomol. 24:17-36. (page 32, figs. 11, 12, 19, 26, 40-43, 75-81 worker described)
References based on Global Ant Biodiversity Informatics
- Brandão C. R. F. 2003. Subfamilia Leptanilloidinae. Pp. 287-290 in: Fernández, F. (ed.) 2003. Introducción a las hormigas de la región Neotropical. Bogotá: Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, xxvi + 424 pp.
- Esteves F. A., C. R. F. Brandao, and L. P. Prado. 2011. The type specimens of Dorylomorph ants (Hymenoptera, Formicidae: Aenictinae, Ecitoninae, Cerapachyinae, Leptanilloidinae) deposited in the Museu de Zoologia da Universidade de Sao Paulo, Brazil. Papeis Avulsos de Zoologia 51(22): 341-397.