Formica orangea

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Formica orangea
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Formicini
Genus: Formica
Species: F. orangea
Binomial name
Formica orangea
Seifert & Schultz, 2009

Formica orangea antweb1008418 p 1 high.jpg

Formica orangea antweb1008418 d 1 high.jpg

Specimen Labels

Prefers dry steppe and semidesert habitats, in the vicinity of rivers or lakes. Invades rural areas and gardens. Nests found in moderately dry sand, often with characteristic slant gateways leading to the underground. Foraging on available trees, probably tending trophobionts. (Seifert and Schultz 2009)

Identification

Seifert and Schultz (2009) - A member of the Formica rufibarbis group. Formica orangea shows an unmistakable combination of orange colour, short head, short scape, high interocellar distance, low pronotal setae numbers and large microripple distance on gaster tergites.

Keys including this Species

Distribution

Seifert and Schultz (2009) - Occurring in the Oriental-Turanian and Central Asian floristic region of the south submeridional and meridional zones. Ranging from 58° (Iran) to 104° E (Mongolia) and 34° (Afghanistan) to 48° N (Kazakhstan) at elevations between 400 and 2200 m.

Distribution based on Regional Taxon Lists

Palaearctic Region: Afghanistan, Kyrgyzstan (type locality), Uzbekistan.

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Worker

Nomenclature

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

  • orangea. Formica orangea Seifert & Schultz, 2009: 266, fig. 6 (w.) KYRGIZSTAN.

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

Description

Worker

Medium-sized Serviformica species (CS 1.349 mm), head short (CL / CW1.4 1.111), scape shortest and distance of lateral ocelli largest within the Formica rufibarbis group (SL / CS1.4 1.021, OceD / CS1.4 0.172), eye relatively small (EYE / CS1.4 0.288), petiole relatively narrow (PEW / CS1.4 0.421). Clypeus with sharp median keel and fine longitudinal microcarinulae. Frontal triangle finely transversely rippled and with 35 - 60 short pubescence hairs. Eyes with microsetae of 10 - 13 μm maximum length. Total mean of unilateral setae numbers on different body parts predicted for a specimen with CS = 1.4 mm: pronotum 1.5, mesonotum 0.8, petiole scale dorsal of spiracle 0.2, flexor profile of hind tibia 0.3. Posterior margin of head and propodeum plus dorsolateral metapleuron normally without setae. Ventral coxae and gaster tergites with long setae. Dorsal mesonotal profile broadly rounded. Metanotal depression moderately deep. Propodeal dome in profile flatly rounded to angled, the basal profile sometimes slightly concave. Dorsal crest of petiole in frontal view broadly convex. Petiole scale in lateral aspect relatively low and thicker than in other species of the F. rufibarbis group, except Formica tarimica sp.n., with convex anterior and straight to slightly convex posterior profile. Gaster with transverse microripples of rather large distance (RipD 6.7 μm, second largest within the F. rufibarbis group) and covered by dense silvery pubescence (sqPDG 3.15). Pubescence on head, mesosoma and petiole less dense. Whole head, mesosoma, coxae, all appendages, and petiole in typical cases reddish yellow; sometimes in smaller specimens brown spots may occur on posterior vertex and dorsal promesonotum, but always with low contrast between the pigmented and the light parts, gaster always brown.

Type Material

Holotype worker plus 4 worker paratypes labelled “KIR:41.8327°N,71.1948°E Tshatkal valley, 1830 m R.Schultz 1998.07.28-115” and “Holotype Formica orangea Seifert & Schultz” / “Paratype Formica orangea Seifert & Schultz”, 5 paratype workers in ethanol, SMN Görlitz; from the same nest series: 3 mounted paratype workers and 19 paratype workers in ethanol, coll. RS.

Etymology

From the mainly orange body color.

References