Strumigenys festigona

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

Strumigenys festigona casent0900866 p 1 high.jpg

Strumigenys festigona casent0900866 d 1 high.jpg

Specimen Labels

Identification

Bolton (2000) - A member of the Strumigenys loriae-group. Distinguished from Strumigenys loriae by the characters given below, its broader relationships in the group are as noted under loriae. All known specimens of festigona, including a nest-series from Bulolo, Papua New Guinea, collected by B. B. Lowery (ANIC, in alcohol), fall into a fairly restricted size range. It would appear that the polymorphism seen in loriae is not present in festigona.

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Indo-Australian Region: New Guinea (type locality).

Check distribution from AntMaps.

Distribution based on specimens

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The above specimen data are provided by AntWeb. Please see Strumigenys festigona for further details

Biology

Castes

Nomenclature

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

  • festigona. Strumigenys festigona Bolton, 2000: 861, fig. 460 (w.q.m.) NEW GUINEA.

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 3.9, HL 1.14, HW 1.02, CI 89, ML 0.48, MI 42, SL 0.69, SI 68, PW 0.45, AL 1.06. Closely related to Strumigenys loriae; answering the description of that species except as follows.

1 In full-face view side of head in front of preocular impression is expanded laterally into an anteriorly curved, acutely thorn-like triangular process; anterior margin of process concave and posterior margin convex.

2 Bulla of femoral gland on hind leg conspicuous, about equal in size to bulla of the hind tibial gland.

3 Ventral spongiform strip on petiole extremely shallow, less than one-third depth of peduncle or deepest beneath the node and tapering anteriorly; extending whole length of petiole.

Paratypes. TL 3.8-3.9, HL 1.11-1.16, HW 0.98-1.04, CI 88-90, ML 0.48-0.49, MI 42-43, SL 0.68-0.70, SI 67-69, PW 0.42-0.45, AL 1.00-1.06 (2 measured).

Dimensions of non-paratypic workers tend to be smaller. TL 3.2- 3.6, HL 0.96-1.07, HW 0.81- 0.95, CI 84-91, ML 0.42-0.46, MI 42-44, SL 0.58-0.64, SI 68-72, PW 0.35-0.42, AL 0.86-0.96 (6 measured).

Type Material

Holotype worker, Papua New Guinea: Wua, 1250 m., 7.200S, 146.42°E, 29.vii.1975, acc. no. 1016, under stone, second-growth montane rainforest (P. S. Ward) (The Natural History Museum). Paratypes. 2 workers, 1 queen, 1 male, with same data as holotype (BMNH, University of California, Davis).

References

  • Bolton, B. 2000. The ant tribe Dacetini. Memoirs of the American Entomological Institute. 65:1-1028. (page 861, fig. 460 worker described)