Strumigenys pnyxia

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Strumigenys pnyxia
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Strumigenys
Species: S. pnyxia
Binomial name
Strumigenys pnyxia
Bolton, 2000

Strumigenys pnyxia casent0900917 p 1 high.jpg

Strumigenys pnyxia casent0900917 d 1 high.jpg

Specimen Labels

The types were collected from under a rock in dry sandy sclerophyll habitat.

Identification

Bolton (2000) - A member of the Strumigenys emmae-group. This species is currently unique in its group as it has 6-merous rather than 4-merous antennae.

Identification Keys including this Taxon

Distribution

Distribution based on Regional Taxon Lists

Australasian Region: Australia (type locality).

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Nomenclature

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

  • pnyxia. Strumigenys pnyxia Bolton, 2000: 952 (w.q.) AUSTRALIA.

Type Material

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

Description

Worker

HOLOTYPE. TL 2.0, HL 0.53, HW 0.39, CI 74, ML 0.14, MI 26, SL 0.24, SI 62, PW 0.24, AL 0.56. Exposed length of fully closed mandible less than width of anterior clypeal margin. Preapical dentition of mandible a single spiniform tooth; no tubercle or denticle on margin between preapical tooth and apicodorsal tooth. Three minute intercalary denticles, the median the largest, the dorsal most vestigial; intercalary dentition obscured by the principal teeth when the mandibles are fully closed. Antenna with 6 segments. Cephalic dorsum with spatulate to narrowly spoon-shaped ground-pilosity; upper scrobe margin fringed with similar hairs, without an apicoscrobal hair. Occipital margin of head without erect hairs. Leading edge of scape flattened and expanded into a broad, roughly D-shaped convex lobe in the median third of its length. Pronotal humeral hair absent. Ground-pilosity of pronotal dorsum spatulate. Dorsal alitrunk reticulate-punctate without standing hairs of any form. Katepisternum, most of metapleuron and part of side of propodeum smooth and shining. Ventral curtain of petiole thick and deep, very densely finely spongiform, much more so than ventral lobe of postpetiole. Disc of postpetiole smooth; in dorsal view the disc entirely surrounded by projecting spongiform tissue. First gastral tergite with erect stiff straight simple hairs. Basigastral costulae slightly shorter than to approximately equal to length of postpetiole disc.

PARATYPE. TL 1.9-2.1, HL 0.52-0.54, HW 0.39-0.40, CI 74-77, ML 0.14-0.15, MI 26-29, SL 0.24-0.25, SI 60-64, PW 0.24-0.25, AL 0.54-0.56 (5 measured).

References

  • Bolton, B. 2000. The ant tribe Dacetini. Mem. Am. Entomol. Inst. 65: 1-1028 (page 952, worker described)