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(Figures 5a-d) Holotype worker. TL 11.1, HL 2.48, HW 2.56, CI 103, SL 2.04, SI 80, PW 2.04, WL 3.76, maximum diameter of eye 0.56, OI 22.
Mandible smooth with scattered setal pits, with 5 teeth, the basal tooth no more than a broad angle. Median portion of anterior clypeal margin with a small and extremely shallow median indentation which rounds broadly and evenly into the clypeal margin on each side; without a prominent tooth on each side of the midline. Dorsum of head near midline very finely and very densely rugulose, the narrow rugulae predominantly longitudinal but with some fine anastomoses; spaces between rugulae extremely finely reticulate-punctate to shagreenate. More laterally on cephalic dorsum, and behind the eyes, the reticulae are wider though no more strongly defined. Dorsum of mesosoma coarsely, irregularly reticulate-rugose, spaces between reticulae shagreenate. Metanotal groove in dorsal view visible laterally but obliterated towards central area of dorsum. Median strip of propodeal dorsum with pubescence that is much more dense than anywhere else on dorsum of mesosoma. Propodeal teeth in dorsal view short, broad at base and blunt apically. Petiole broad, width at base of spines ca. 2.00, surmounted by 5 spines that are all short and stout. Outer pair of petiolar spines the longest, broadly triangular and weakly divergent. Median spine only slightly longer than the flanking pair. Gastral tergites 1-3 shagreenate to extremely finely and densely reticulate-punctate, with scattered larger setal pits; tergites also densely clothed with subappressed to appressed pubescence. Setae on first gastral tergite suberect to subdecumbent, short, maximum length ca. 0.22.
Paratype workers. TL 11.5-12.0, HL 2.40-2.48, HW 2.40-2.62, CI 100-106, SL 1.92-2.04, SI 78-80, PW 1.88-1.96, WL 3.44-3.68, maximum diameter of eye 0.56-0.58, OI 22-23 (3 measured). As holotype but mandible with 3-5 teeth. In one specimen the left mandible has 5 teeth, the right mandible 3.
Holotype worker. Kenya: Kora Res., Tana River, 22.vii.1983, 0-100 m., no. 5c, Acacia-Commiphora scrub (N.M. Collins & M. Ritchie) (BMNH).
Paratypes: 9 workers (2 dissected, on same pin), with the same data (BMNH, CASC).
This large species is immediately identified by its unmodified clypeus, characteristic gastral sculpture, short stout petiolar spines and dense propodeal and gastral pubescence. It also retains traces of a stridulitrum, absent from all other known species.
Non-paratypic material examined. Kenya: Malindi Distr., Arabuko-Sokoke For. (Snelling & Martins). Tanzania: Mkomazi Game Res., nr Dindera Dam (A. Russell-Smith).
Found most commonly in these habitats: 2 times found in primary forest, 2 times found in Acacia-Commiphora scrub, 1 times found in Brachystegia forest.
Found most commonly in these microhabitats: 2 times leaf litter, 1 times 2009 workshop, ground.
Collected most commonly using these methods: 2 times winkler, 1 times pitfall trap, Transect 2 20m.
Elevations: collected from 42 - 138 meters, 93 meters average