Nesomyrmex excelsior (lat.) Is a species of small ants of the genus Nesomyrmex (Formicidae) from the subfamily Myrmicinae . The name is given on the basis of distribution ( excelsior = above), since the species is confined to highland biotopes [1] .
| Nesomyrmex excelsior | ||||||||||||||||||||
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| Nesomyrmex excelsior Csösz & Fisher, 2016 |
Content
Spread
Madagascar [1] .
Description
Small ants (about 3 mm long) are yellowish-brown in color, resembling members of the genus Leptothorax , living in tropical forests at altitudes from 520 to 1325 m. They differ from closely related species ( Nesomyrmex rugosus and others) by the less angular shoulder edges of the pronotum, elongated postpetiole, longitudinal wrinkled sculpture of the surface of the body, long scape of the antenna. Antennae 12-segmented with mace of 3 segments. Abutments with 5 prongs. Propodeum angular with two spines. The stalk between the breast and abdomen consists of two segments: the petiole and the post petiolus (the latter is clearly separated from the abdomen), the sting is developed [1] [2] . The species was first described in 2016 by American entomologists Sándor Csősz and Brian Fisher ( Brian L. Fisher ; Entomology, California Academy of Sciences , San Francisco , California, USA ) based on materials from Madagascar. Included in the species group of Nesomyrmex sikorai , which is characterized by the absence of spines on the petioli nodule, the presence of spines on the posterior thorax and the methanotal groove [1] .
Notes
- 2 1 2 3 4 Csösz, S. & Fisher, BL . (English) // PeerJ. - 2016. - Vol. 4 - P. e1796. - DOI : 10.7717 / peerj.1796 .
- ↑ Csosz, S. & Fisher, BL. Diagnostic survey of the Malagasy group of species and morphology based on the delimitation protocol (Eng.) // ZooKeys: Journal. - Sofia: Pensoft Publishers, 2015. - Vol. 526 . - P. 19–59. doi: 10.3897 / zookeys.526.6037. - ISSN 1313-2970 .
Literature
- Bolton B. Afrotropical species of myrmecine ant gene Cardiocondyla , Leptothorax , Melissotarsus , Messor and Cataulacus (Formicidae) (English) // Bulletin of the British Museum (Natural History). Entomology. - 1982. - Vol. 46 . - p. 307-370.
- Csősz, S. & Fisher, BL Taxonomy of Malagasy Nesomyrmex brevicornis species-group using conventional morphology-based approach (Eng.) // ZooKeys: Journal. - Sofia: Pensoft Publishers, 2016. - Vol. 616. - P. 125-159. - ISSN 1313-2970 . - DOI : 10.3897 / zookeys.616.9532 .
- Csosz, S. & Fisher, BL Taxonomic revision of the Malagasy Nesomyrmex madecassus species-group using a quantitative morphometric approach (Eng.) // ZooKeys: Journal. - Sofia: Pensoft Publishers, 2016. - Vol. 603 . - P. 105-130. - ISSN 1313-2970 . - DOI : 10.3897 / zookeys.603.8271 .
- Kempf, WW A synopsis of the genus Leptothorax Mayr (Hymenoptera: Formicidae) (English) // Studia Entomologica (ns). - 1959. - Vol. 2 P. 391-432.