Formica uralensis

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Formica uralensis
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Formicini
Genus: Formica
Species: F. uralensis
Binomial name
Formica uralensis
Ruzsky, 1895

Formica uralensis casent0906303 p 1 high.jpg

Formica uralensis casent0906303 d 1 high.jpg

Specimen Labels

Synonyms

This is a boreal species which constructs small mounds from plant material. In some areas of Russia it is associated with bogs (Zryanin & Zryanina, 2007).

At a Glance • Polygynous  
 

Identification

Head entirely black, dark area on dorsum of promesonotum dense black, gaster black, rest of alitrunk and appendages yellowish to brownish red. Head as broad as long, antennal scape broad and short. Frontal triangle sculptured and dull. Bristlelike hairs on dorsum of head, gula, alitrunk and gaster usually present but variable in number. Length: 4.5-8.0 mm (Collingwood 1979).

Distribution

Northeast Europe including N. Germany, Baltic States and West USSR; one record from Swiss Alps. Widely distributed in Mongolia and Central Siberia (Collingwood 1979).

Distribution based on Regional Taxon Lists

Palaearctic Region: Belarus, China, Democratic Peoples Republic of Korea, Denmark, Estonia, Finland, France, Germany, Kazakhstan, Latvia, Lithuania, Mongolia, Norway, Poland, Russian Federation (type locality), Sweden, Switzerland, Ukraine.

Distribution based on specimens

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The above specimen data are provided by AntWeb. Please see Formica uralensis for further details

Biology

In Europe F. uralensis is typically found on lowland open mosses with scattered trees, more occasionally on drier heath. Nests may be isolated or in groups and are built up of leaf litter and twigs into rounded dome. The nest surface is of fine material which covers a large brood incubation chamber resting on a surface of coarse long twigs. Rosengren (1969) has studied its habits in South Finland; unlike members of the Formica rufa group, this species does not go deep within the nest to hibernate but the ants clump together under peat moss or among tree roots away from the summer nest. Food is mainly honey dew from surrounding betula scrub or pines. Although this species has superficial similarities to F. rufa group species it is morphologically well differentiated with its broad black head, short thick antennae and wide coarsely sculptured frontal triangle.

Nests are usually polygynous and may reproduce by colony fission but fresh colonies may also originate from adoption of fertile queens by Formica transkaucasica. Alatae occur in July. Its marshy habitat in Europe contrasts with the dry steppe habitat in Asia and may be related to the inability of this species to survive aggressive competition from other wood ant species since according to Rosengren (1969), although F. uralensis defends its territory it is easily overwhelmed by other ants such as Formica sanguinea and Myrmica rubra.

Castes

Nomenclature

The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • uralensis. Formica uralensis Ruzsky, 1895: 13 (w.q.m.) RUSSIA. [Also described as new by Ruzsky, 1896: 69.] Senior synonym of superba: Wu, 1990: 4. See also: Emery, 1909b: 189; Wheeler, W.M. 1913f: 448; Karavaiev, 1936: 249; Stitz, 1939: 325; Dlussky, 1967a: 79; Kutter, 1977c: 274; Collingwood, 1979: 135; Kupyanskaya, 1990: 189.
  • superba. Formica pratensis var. superba Wheeler, W.M. 1933c: 65 (w.) CHINA. Raised to species: Santschi, 1941: 278. Junior synonym of uralensis: Wu, 1990: 4.

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

Description

Worker

Wheeler (1933) as Formica pratensis superba - Length 5-6.5 mm.

Head, including the frontal area, thorax and abdomen opaque; mandibles and legs, including the coxae, distinctly shining. Eyes not hairy. Erect hairs golden yellow, very few on the head, gula and promesonotum; border of petiole ciliate; gaster with sparse, blunt, apparently deciduous hairs; pubescence grey, very fine, dense on the coxae and legs; more dilute and not concealing the opaque surface on the gaster. Thorax and petiole rather rich red; mandibles dark brown; entire head, center of pronotum and anteromedian portion of mesonotum and the gaster deep black, decidedly darker than the similar regions in the typical pratensis of Europe, which are really dark brown or brownish black. First gastric segment with a large, transverse red spot just above the petiolar articulation; antennae nearly black; legs dark brown, coxae and trochanters somewhat paler and more reddish; border of petiole not infuscated.

Type Material

Formica pratensis superba - Six specimens from Eastern Tomb, near Peking, China (Chi Ho).

References

  • Collingwood, C. A. 1979. The Formicidae (Hymenoptera) of Fennoscandia and Denmark. Fauna Entomol. Scand. 8: 1-174 (page 135, see also)
  • Dlussky, G. M. 1967a. Ants of the genus Formica (Hymenoptera, Formicidae, g. Formica). Moskva: Nauka Publishing House, 236 pp. (page 79, see also)
  • Emery, C. 1909b. Beiträge zur Monographie der Formiciden des paläarktischen Faunengebietes. (Hym.) Teil VII. Dtsch. Entomol. Z. 1909: 179-204 (page 189, see also)
  • Fjellberg, A. 1975. Occurrence of Formica uralensis Ruzsky (Hymenoptera, Formicidae) in Pasvik, North Norway. Norwegian Journal of Entomology 22:83. PDF
  • Karavaiev, V. 1936. The fauna of the family Formicidae (ants) of the Ukraine. Part II (conclusion). Tr. Inst. Zool. Biol. Ukr. Akad. Nauk Ser. 1 Pr. Syst. Faun. 1936: 161-316 (page 249, see also)
  • Kupyanskaya, A. N. 1990a. Ants of the Far Eastern USSR. Vladivostok: Akademiya Nauk SSSR, 258 pp. (page 189, see also)
  • Kutter, H. 1977c. Hymenoptera, Formicidae. Insecta Helv. Fauna 6: 1-298 (page 274, see also)
  • Ruzsky, M. 1895. Faunistic investigations in east Russia 1. Contribution to the ant fauna of east Russia. 2. Zoological excursion in the Orenburg region in 1894. Tr. Obshch. Estestvoispyt. Imp. Kazan. Univ. 28(5 5: 1-32 (page 13, worker, queen, male described)
  • Ruzsky, M. 1896. Verzeichniss der Ameisen des östlichen Russlands und des Uralgebirges. Berl. Entomol. Z. 41: 67-74 (page 69, also described as new)
  • Stitz, H. 1939. Die Tierwelt Deutschlands und der angrenzenden Meersteile nach ihren Merkmalen und nach ihrer Lebensweise. 37. Theil. Hautflüger oder Hymenoptera. I: Ameisen oder Formicidae. Jena: G. Fischer, 428 pp. (page 325, see also)
  • Wheeler, W. M. 1913i. A revision of the ants of the genus Formica (Linné) Mayr. Bull. Mus. Comp. Zool. 53: 379-565 (page 448, see also)
  • Wheeler, W. M. 1933c. New ants from China and Japan. Psyche (Camb.) 40: 65-67 PDF
  • Wu, J. 1990. Taxonomic studies on the genus Formica L. of China (Hymenoptera: Formicidae). For. Res. 3: 1-8 (page 4, senior synonym of superba)
  • Zryanin, V.A. and Zryanina, T.A. 2007. Novye dannye o faune murav’ev Srednego Povolzh’ya. Uspekhi Sovremennoj Biologii. 127:226-240. [in Russian]