Strumigenys jugis

Identification
Bolton (2000) - A member of the signeae complex in the Strumigenys godeffroyi-group. Among the Austral species of the godeffroyi-group jugis and Strumigenys juxta share the characteristic form and distribution of erect hairs outlined in their descriptions. The two are easily separated by the features mentioned in the key. The postpetiole disc, almost entirely smooth and shining in juxta, is usually at least partially sculptured in jugis. The metapleuron and side of propodeum, which has only a small smooth patch in jugis, is almost entirely smooth in juxta.

Distribution based on Regional Taxon Lists
Australasian Region: Australia.

Nomenclature

 *  jugis. Strumigenys jugis Bolton, 2000: 963, fig. 525 (w.q.) AUSTRALIA.

Worker
Holotype. TL 2.4, HL 0.62, HW 0.46, CI 74, ML 0.28, MI 45, SL 0.37, S I 80, PW 0.28, AL 0.62. With characters of signeae-complex. Inner margin of mandible with a narrow cuticular lamella between preapical tooth and base; margin of lamella shallowly convex, broadest at about its midlength where its width is less than half the length of the preapical tooth. Apicoscrobal hair short and stiff, straight. Cephalic dorsum finely and densely reticulate-punctate and with sparse, weakly elevated simple ground pilosity. Occipital margin with a transverse row of 4-6 short stiff erect simple hairs; a similar pair present just in front of highest point of vertex and usually another close to dorsolateral margin of occipital lobe. Maximum diameter of eye slightly greater than maximum width of the narrow subcylindrical scape. Pronotal humeral hair straight, stiff and simple; pronotal dorsum and mesonotum each with a single pair of stiffly erect simple hairs. Entire dorsal alitrunk finely and densely reticulate-punctate, the pronotal dorsum usually with superimposed fine longitudinal rugulae. Propodeal declivity with a very narrow lamella, little more than a carina, it posterior (free) margin closely paralleling the edge of the declivity. Katepisternum smooth; metapleuron and side of propodeum with a small smooth patch that occupies the upper portion of the former and lower portion of the latter. Dorsum of petiole node finely reticulate-punctate; disc of postpetiole at least partially sculptured, not entirely smooth (see under paratypes, below). Hairs on first gastral tergite erect, short stiff and simple. Basigastral costulae sharply defined, distinctly much longer than the disc of the postpetiole.

Paratypes. TL 2.2-2.4, HL 0.56-0.62, HW 0.41-0.46, CI 72-75, ML 0.27-0.28, MI 45-48, SL 0.33-0.37, SI 79-81, PW 0.25-0.28, AL 0.56-0.62 (6 measured). Sculpture of postpetiole disc variable. Usually there is weak shagreenate sculpture on part or most of the disc; this is usually overlaid by sparse longitudinal costulae, at least on anterior half of disc. Sometimes costulae more extensive and traverse the entire disc.

Dimensions of non-paratypic workers. TL 1.9-2.4, HL 0.54-0.62, HW 0.40-0.46, CI 72-76, ML 0.26-0.28, MI 45-48, SL 0.30-0.37, SI 75-83, PW 0.23-0.28, AL 0.50-0.62 (to measured).

Type Material
Holotype worker, Australia: Queensland, 11 km. ENE Mt Tozer, 12.43S, 143.18E, l1-16.vii.l986, Berlese ANIC 1062, rainforest litter (T. Weir). Paratypes. 3 workers with same data as holotype but ANIC 1063; 6 workers and 1 queen with same data but ANIC 1064; I worker with same data but ANIC 1065 (ANIC, ).