Ectomomyrmex astutus

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Ectomomyrmex astutus
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Ponerinae
Tribe: Ponerini
Genus: Ectomomyrmex
Species: E. astutus
Binomial name
Ectomomyrmex astutus
(Smith, F., 1858)

Pachycondyla astuta casent0179011 profile 1.jpg

Pachycondyla astuta casent0179011 dorsal 1.jpg

Specimen labels

Subspecies

Identification

Keys including this Species

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: 37.713606° to 14.52629669°.

     
North
Temperate 		North
Subtropical 		Tropical South
Subtropical 		South
Temperate

Distribution based on Regional Taxon Lists

Australasian Region: Australia (type locality).
Indo-Australian Region: Borneo, Indonesia, Malaysia, New Guinea.
Oriental Region: India, Thailand, Vietnam.
Palaearctic Region: China, Democratic Peoples Republic of Korea, Republic of Korea.

Distribution based on AntMaps

AntMapLegend.png

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.
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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.
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Biology

Castes

Nomenclature

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

  • astutus. Pachycondyla astuta Smith, F. 1858b: 107 (w.) AUSTRALIA. Karavaiev, 1925b: 120 (q.); Imai, Kubota, et al. 1985: 46 (k.). Combination in P. (Bothroponera): Emery, 1901a: 45; in P. (Ectomomyrmex): Forel, 1905c: 6; in Ectomomyrmex: Bingham, 1903: 86; Wheeler, W.M. 1927h: 84; in Bothroponera: Taylor & Brown, D.R. 1985: 21; in Pachycondyla: Brown, in Bolton, 1995b: 303; in Bothroponera: Joma & Mackay, 2013: 2; in Ectomomyrmex: Schmidt & Shattuck, 2014: 193. Current subspecies: nominal plus obscura.

Type Material

The following notes on F. Smith type specimens have been provided by Barry Bolton (details):

Three worker syntypes in The Natural History Museum. Labelled “n. Holl.” (New Holland = Australia.)

Description

Worker

Smith (1858): Black; the mandibles, flagellum, tibiæ and tarsi ferruginous; the head oblong and delicately striated longitudinally. Thorax elongate, rounded anteriorly and obliquely truncate posteriorly; the prothorax striated, the stria somewhat obliquely curved; the meso- and metathorax slightly rugose. The node of the abdomen compressed, thick and bent forwards, the upper margin rounded, the anterior and posterior surfaces transversely striated. Abdomen oblong, slightly pilose and shining; the posterior margins of the segments rufo-piceous, the apex ferruginous.


Bingham (1930): Black, the mandibles and the tibiae and tarsi of the legs deep castaneous red; the head, thorax and abdomen covered with short erect reddish-yellow hairs and a line thin sericeous recumbent pubescence, visible only in certain lights. Head very finely and closely striate, the striae diverging posteriorly from a medial line; the emarginate portion of the occiput smooth and shining, with a few oblique striae in the middle; the lateral angles of the head acute. Thorax: the pronotum convex above, narrowed anteriorly into a neck, closely finely striate, the striae concentric; meso- and metanotmn somewhat more coarsely longitudinally striate, the basal portion of the metanotum short, not longer than the apical sloping portion, the latter seen from the back subcordate in shape, widening in the middle, finely longitudinally striate; legs moderately long, robust. Node of the pedicel rugose above, transverse, striate in front; abdomen very finely and closely punctured, opaque, and bearing scattered piligerous points, the apical margins of the 2nd and succeeding segment very narrow and obscurely reddish.

Length: 12.5 - 13 mm


Karyotype

  • n = 9, 2n = 18 (Indonesia) (Imai et al., 1985; Mariano et al., 2015) (as Pachycondyla astuta).
  • n = 11, 2n = 22 (Indonesia) (Imai et al., 1985; Mariano et al., 2015) (as Pachycondyla astuta).

References

References based on Global Ant Biodiversity Informatics

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