Patagonomyrmex laevigatus (lat.) - a species of ants of the genus Patagonomyrmex from the subfamily of myrmycin ( Myrmicinae ).
| Patagonomyrmex laevigatus | |||||||||||||||||||||||||||||||||||||||||||||||
Ant Patagonomyrmex laevigatus | |||||||||||||||||||||||||||||||||||||||||||||||
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| International scientific name | |||||||||||||||||||||||||||||||||||||||||||||||
Patagonomyrmex laevigatus (Santschi, 1921) | |||||||||||||||||||||||||||||||||||||||||||||||
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Content
Distribution
South America , Patagonia : south of Argentina and south of Chile [1] .
Description
Small ants of black or brown color (working length of about 5 mm), outwardly similar to Pogonomyrmex and myrmik ( Myrmica ). Monomorphic, the length of the head of workers from 1.11 to 1.24 mm, the width HW from 0.97 to 1.13 mm, the length of the scape of the antennae SL 0.84 mm to 0.95 mm They have a convex clypeus , an underdeveloped psammophore , a smooth top of the petiol and postpetiol, and the palp formula is 5.4. The antennae of workers and females are 12-segmented with a 4-segmented mace (13 in males and without mace). Mandibles with 6 teeth. The stalk between the breast and the abdomen consists of two segments: the petiolus and postpetiolus (the latter is clearly separated from the abdomen), the sting is developed, pupae are naked (without cocoon). A close view of Patagonomyrmex angustus is distinguished by a wrinkled back of the chest, and Patagonomyrmex odoratus (Kusnezov, 1949) is characterized by a reddish color [1] .
Systematics
The species was described in 1921 by the Italian worldmecologist F. Sanchi under the original name Pogonomyrmex laevigatus Santschi, 1921 . Previously included in the genera Pogonomyrmex (from its former species group angustus- group) and Ephebomyrmex . In 2016, it was isolated in the genus Patagonomyrmex [1] [2] [3] [4] .
Worker on top
Worker's head
Winged male on top
Male head
Notes
- ↑ 1 2 3 Robert A. Johnson, Corrie S. Moreau. A new ant genus from southern Argentina and southern Chile, Patagonomyrmex (Hymenoptera: Formicidae) (Eng.) // Zootaxa : Journal. - Auckland , New Zealand : Magnolia Press, 2016 .-- Vol. 4139, no. 1 . - P. 1–31. - ISSN 1175-5334 .
- ↑ Kusnezov, N. 1949. Pogonomyrmex del grupo Ephebomyrmex en la fauna de la Patagonia (Hymenoptera, Formicidae). Acta Zool. Lilloana 8: 291-307 (page 293, Ephebomyrmex as a subgenus in the genus Pogonomyrmex )
- ↑ Kusnezov, N. 1951. El género Pogonomyrmex Mayr (Hym., Formicidae). Acta Zool. Lilloana 11: 227-333 (page 245, Ephebomyrmex as a subgenus in the genus Pogonomyrmex )
- ↑ Kusnezov, N. 1960 [1959]. La fauna de hormigas en el oeste de la Patagonia y Tierra del Fuego. Acta Zool. Lilloana 17: 321-401 (page 350, Ephebomyrmex as a separate genus)
Literature
- Cole AC Jr. 1968 . Pogonomyrmex harvester ants. University of Tennessee Press. Knoxville, Tenn. 222 p.
- Johnson, RA and SP Cover. 2015. A taxonomic revision of the seed-harvester ant genus Pogonomyrmex (Hymenoptera: Formicidae) on Hispaniola. 2015. Zootaxa 3972 (2): 231-249. doi: 10.11646 / zootaxa.3972.2.5
- Kusnezov, N. 1949. Pogonomyrmex del grupo Ephebomyrmex en la fauna de la Patagonia (Hymenoptera, Formicidae). Acta Zool. Lilloana 8: 291-307.
- Kusnezov, N. 1951. El género Pogonomyrmex Mayr (Hym., Formicidae). Acta Zool. Lilloana 11: 227-333.