Strumigenys decollata

Nothing is known about the biology of .

Identification
Bolton (2000) - A member of the Strumigenys decollata-group. This species and Strumigenys praecollata are obviously closely related, but the differently shaped petiole nodes and contrasting cephalic sculptures quickly separate them.

Distribution based on Regional Taxon Lists
Indo-Australian Region: Solomon Islands.

Nomenclature

 *  decollata. Strumigenys decollata Mann, 1919: 353, figs. 32, 33 (w.m.) SOLOMON IS. See also: Brown, 1958i: 109; Bolton, 2000: 772.

Worker
TL 4.2, HL 1.14, HW 0.69, CI 60, ML 0.66, MI 58, SL 0.60, SI 87, PW 0.42, AL 1.10. Spiniform distal preapical tooth located at about one-third the mandible length from the apicodorsal tooth, the small proximal preapical tooth located at about onethird the mandible length from the base; distal preapical tooth about 5 times longer than proximal tooth. Distance between apicodorsal tooth and distal preapical tooth slightly less than distance between distal and proximal preapical teeth. Anterior clypeal margin deeply concave. Propodeal teeth triangular, broad basally but short; propodeal tooth distinctly larger than proximal preapical tooth on mandible. With petiole in profile the node with a short but distinctly differentiated anterior face; the long, shallowly curved dorsum of the node is about 3.5 X the height of the anterior face. Petiole node in dorsal view about 1.5 X longer than broad (discounting posterior collar). Head without a pair of erect hairs at highest point of vertex, without ground-pilosity. Dorsal surfaces of alitrunk, petiole and first gastral tergite without ground-pilosity. Cephalic dorsum with feeble superficial shagreening; dorsal alitrunk almost smooth, pronotum with faintest vestiges of superficial sculpture.

Male
Brown (1958) - From type series, MCZ: TL 3.2 mm. Color now is deep ferruginous; head deeply, alitrunk dorsum lightly, infuscated; legs and antennae sordid yellowish. Notauli complete and deep; parapsidal furrows present; no propodeal teeth. Nodes shaped as in worker, smooth and shining, but spongiform appendages and basigastric costulae obsolete. Mandibles not "bidentate," but with an expanded, convex inner margin basally and a single straight, acute apical tooth. Fore-wing venation much reduced, with .only R + Sc to pterostigma, stigma itself and 2r defined, and these scarcely pigmented. Few other veins represented by indistinct colorless furrows. Both wings glassy and clear, with very few microtrichia, especially near bases; hindwing with 4 subapical hamuli.

Type Material
Lectotype worker (designated by Brown, 1958g: 110), and paralectotype worker and male, SOLOMON IS: Ysabel, Fulakora (W. M. Mann) [examined].

References based on Global Ant Biodiversity Informatics

 * Bolton, B. 2000. The Ant Tribe Dacetini. Memoirs of the American Entomological Institute 65
 * Brown W. L., Jr. 1958. The Indo-Australian species of the ant genus Strumigenys Fr. Smith: S. decollata Mann and S. ecliptacoca new species. Psyche (Camb.) 64: 109-114.
 * Mann W. M. 1919. The ants of the British Solomon Islands. Bulletin of the Museum of Comparative Zoology 63:273-391.
 * Mann William. 1916. The Ants of the British Solomon Islands. Bulletin of the Museum of Comparative Zoology at Harvard College 63(7): 273-391
 * Mann, W.M. 1919. The ants of the British Solomon Islands. Bulletin of the Museum of Comparative Zoology of Harvard College 63: 273-391
 * Wheeler W.M. 1935. Check list of the ants of Oceania. Occasional Papers of the Bernice Pauahi Bishop Museum 11(11):1-56.
 * Wheeler, William Morton.1935.Checklist of the Ants of Oceania.Occasional Papers 11(11): 3-56