Myrmica multiplex

Myrmica multiplex
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Family:	Formicidae
Subfamily:	Myrmicinae
Tribe:	Myrmicini
Genus:	Myrmica
Species group:	pachei
Species:	M. multiplex
Binomial name
	Myrmica multiplex; Radchenko & Elmes, 2009

The type material, workers and gynes, were found on a mountain at an altitude of about 1700 m.

Identification

Radchenko and Elmes (2010) - A member of the pachei group. It is characterized by the long, suboval head (CI > 1.20) with the convex sides and occipital margin, and the very widely rounded, barely marked occipital corners; margins of the head with not very abundant long suberect hairs. Its pronotum has coarse, short sinuous rugae and reticulation, while the mesonotal and propodeal dorsum has quite coarse transversal rugosity (numbering ≤ 20), similar rugae are also on the upper parts of mesopleura and propodeum. It differs from the related Myrmica weii by its distinctly higher petiole with a relatively short dorsal plate.

Zhong et al. (2024), Fig. 5. Diagnostic characters of Myrmica inermis and clustering based on Ward’s method from the M. pachei-group. Values indicate the presence (1) or absence (0) of a character. Abbreviations: A, head extensively punctated; B, dense rugae between frontal carinae; C, posterior cephalic margin distinctly rounded; D, lateral margins of head without long suberect hairs; E, head slightly longer than broad, not elongated; F, pronotal dorsum reticulate sculpture; G, metanotal groove weak depression; H, mesopleuron with monotonous regular horizontal rugae; I, propodeal spines strongly shortened; J, petiole distinctly longer than high; K, first gastral tergite smooth.

Keys including this Species

Distribution

Only known from the type locality in Shaanxi Province of China.

Latitudinal Distribution Pattern

Latitudinal Range: 33.75° to 33.75°.


North Temperate	North Subtropical	Tropical	South Subtropical	South Temperate

Source: AntMaps

Distribution based on Regional Taxon Lists

Palaearctic Region: China (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.

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

Castes

Males have not been collected.

Phylogeny

Zhong et al. (2024), Fig. 5. Diagnostic characters of Myrmica inermis and clustering based on Ward’s method from the M. pachei-group. Values indicate the presence (1) or absence (0) of a character. Abbreviations: A, head extensively punctated; B, dense rugae between frontal carinae; C, posterior cephalic margin distinctly rounded; D, lateral margins of head without long suberect hairs; E, head slightly longer than broad, not elongated; F, pronotal dorsum reticulate sculpture; G, metanotal groove weak depression; H, mesopleuron with monotonous regular horizontal rugae; I, propodeal spines strongly shortened; J, petiole distinctly longer than high; K, first gastral tergite smooth.

Nomenclature

The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

multiplex. Myrmica multiplex Radchenko & Elmes, 2009a: 81, figs. 46-55 (w.q.) CHINA. See also: Radchenko & Elmes, 2010: 203.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

Worker

Head suboval, distinctly longer than broad, with convex sides and occipital margin, and very widely rounded, barely marked occipital corners; anterior clypeal margin narrowly rounded, but not prominent and not-notched medially. Upper latero-ventral corners of head rounded, not pointed (seen in profile). Mandibles with 6-7 teeth. Frontal carinae very feebly curved, mergmg with rugae that extend over the posterior third of the head dorsum. Frons wide, frontal lobes not extended. Scape relatively long, longer than head width, gradually though distinctly curved at the base, without any trace of lobe or carina.

Alitrunk long and low, promesonotum convex (seen in profile), promesonotal suture indistinct (seen from above). Metanotal groove distinct, though not deep. Propodeal lobes rounded apically. Propodeal spines quite short, straight, thin, slrnder and sharp, directed backward and somewhatl upward at an angle of about 45°. Petiole with relativcly short but distinct peduncle, its anterior surface almost straight, meeting the dorsal face at a blunt, narrowly rounded angle, dorsal surface short, slightly convex, gradually sloping posteriorly. Postpetiole higher than long, with quite narrowly rounded dorsum. Spurs on middle and hind tibiae well developed and pectinate.

Frons and occiput with relatively few straight, divergent rugae, numbering 15-17 between frontal carinae level with the eyes; temples and occiput with a few rugae and reticulation. Surface between rugae densely and quite coarsely punctated, appearing dull. Clypeus shiny, with reduced sculpture, comprising a few irregular longitudinal rugulae: frontal triangle smooth and shiny. Mandibles quite coarsely longitudinally rugose.

Pronotum with coarse short sinuous rugae and reticulation; mesonotal and propodeal dorsum with ≤ 20 quite coarse transverse rugae, thelJatters occur also on upper parts of mesopleura and propodeum; lower parts of mesopleura and sides of propodeum with coarse longitudinal rugosity. Surface between rugae on alitrunk smooth and shiny. Petiole and postpetiole with longitudinal sinuous rugosity and partly reticulate; surface between rugae finely but densely punctated (less coarsely than on the head dorsum), appearing more or less dull. Gaster smooth and shiny.

Head margins with relatively sparse, slightly curved, long suberect hairs: alitrunk dorsum with longer hairs; petiole with 6-8 long and several shorter hairs. Scape with subdecumbent hairs, tilted at an angle of about 30° above the surface: tibiae with subdecumbcent hairs. Head and alitrunk reddish, dorsum of petiolar node and postpetiole, and gaster reddish-brown, appendages somewhat lighter.

Queen

Generally similar to workers by the shape and sculpture of head, frontal lobes. Propodeal spines (which are more blunt at the apex) and waist. Mandibles with 7-9 teeth. Alitrunk long and low, coarsely sculptured; anterior half of scutum with sinuous longitudinal rugae and reticulation: posterior half of scutum, scutellum and propodeal dorsum with coarse transverse rugae; pronotum with coarse irregular rugosity and reticulation; mesopleura and lower part of propodeum longitudinally rugose. Petiolar node and postpetiole much more coarsely rugose than in workers, but ground sculpture less developed, the surface appearing shiny.

Type Material

Holotype worker, China Shaanxi Prov., Qin Ling Shan, 108 km SW Sian, Aulorote km 93 S Zhouzhi, 107°56'E, 33°45'N, H 1650 m. No. 962, 1-2.ix.1995, leg. Wrase (Institute of Zoology of the Ukranian National Academy of Sciences); paratypes: 3 workers, 3 queens, with the same label as the holotype (IZK, Graham W. Elmes, SCHULZ)

Etymology

From the Latin word multiplex = various or diverse, that reflects the mixed and various kinds of sculpture on the alitrunk.

References

Radchenko, A.G. & Elmes, G.W. 2009. Taxonomic revision of the pachei species-group of the genus Myrmica Latreille. Annales Zoologici (Warszawa) 59: 67-92.
Radchenko, A.G. & Elmes, G.W. 2010. Myrmica ants of the Old World. Fauna Mundi 3: 1-789.

References based on Global Ant Biodiversity Informatics

Chen Z. L., S. Y. Zhou, and J. H. Huang. 2016. Seven species new to science and one newly recorded species of the ant genus Myrmica Latreille, 1804 from China, with proposal of a new synonym (Hymenoptera: Formicidae). ZooKeys 551: 85–128.