Strumigenys mnemosyne

Distribution based on Regional Taxon Lists
Indo-Australian Region: Borneo, Indonesia, Malaysia.

Nomenclature

 *  mnemosyne. Pyramica mnemosyne Bolton, 2000: 446, figs. 266, 291 (w.) BORNEO. Combination in Strumigenys: Baroni Urbani & De Andrade, 2007: 124

Worker
Holotype. TL 1.4, HL 0.38, HW 0.30, CI 79, ML 0.07, MI 18, SL 0.16, SI 53, PW 0.18, AL 0.36. Leading edge of scape without elongate straight hairs that project anterodorsally. With head in full-face view the lateral margin from the frontal lobe to the occipital corner with 4 freely projecting stiff hairs. Posterior margins of occipital lobes in full-face view with a minute indentation on each side that is spanned by a small strip of cuticle. Standing hairs on dorsum of head sparse, straight to very slightly curved and appearing blunt apically. Cephalic hairs apparently arranged as follows, though some loss by abrasion may have occurred: an anterior pair (or broken transverse row) at about the level of the eye; a transverse row just in front of the highest point of the vertex; an irregular arched transverse row in front of the occipital margin. Dorsum and sides of head entirely unsculptured. Eye minute and inconspicuous, of a single tiny ommatidium. Upper scrobe margin not sharply defined posteriorly, rounded, especially behind the level of the eye; the scrobe itself shallow and indistinct. Pronotal dorsum evenly shallowly convex in profile. Alitrunk entirely smooth, standing hairs on the dorsum sparse, short and bristly, arranged in distinct pairs. Lamina on propodeal declivity narrowing dorsally, reaching higher than level of top of spiracle. Freely projecting long hairs on middle and hind tibiae and basi tarsi very conspicuous. Node of petiole in profile narrowly rounded, forming an anterior peak behind which the dorsum slopes steeply downward. Straight to weakly curved standing hairs numerous on waist segments and first gastral tergite. Petiole and disc of postpetiole unsculptured, first gastral tergite unsulptured except for the basigastral costulae. Petiole node in dorsal view broader than long, without a posterior collar.

Type Material
Holotype worker, Malaysia: Sarawak, 4th. Division, Gn. Mulu Nat. Pk RGS Expd., Long Pala, 26.ix.1977, lowl. rainforest leaf litter (B. Bolton).