Metapone emersoni Gregg, 1958

Taylor, Robert W. & Alpert, Gary D., 2016, The myrmicine ant genus Metapone Forel (Hymenoptera: Formicidae): a global taxonomic review with descriptions of twelve new species, Zootaxa 4105 (6), pp. 501-545 : 509-510

2. Metapone emersoni Gregg, 1958

( Figs 5–7 )

Metapone emersoni Gregg, 1958:115 , Fig.2 —Worker; Type locality: 12 miles from Perinet [18°55'S, 48°25'E], Madagascar. Metapone emersoni, Alpert, 2007:10 , Figs 5, 6 , 11 , 12 —Worker.

Worker diagnosis. General and diagnostic features as illustrated and keyed above (note especially the entire anterior clypeal border without median denticles, anteriorly converging lateral clypeal margins, relatively very wide petiolar node, and extended postpetiolar sternite appearing spinous in lateral view). Eyes structured similarly to those of M. madagascarica (see above) but a little larger. Subpetiolar process ( Fig 5 ) more-or-less basic in structure, the posterior face triangular, subpetiolar angle obtuse in side view, without spinose extension. Subpetiolar extension lamellate, approximately semi-circular, its base about two-thirds as long as the subpetiolar edge. See original description ( Gregg, 1958) for further details.

Illustrated specimen. Madagascar, Prov Toamasina, P.N. Mantadia, 895m, 18˚ 47’5”S, 48 ˚ 25’6”E, 25 xi–1 xiii 1998, H.J. Ratsirarson (CASENT 0 0 0 31.16 HJR 20).

Figures

FIGURES 5 – 7. Metapone emersoni, worker, Perinet, Madagascar, HW 0.75, PMW 0.56, MSL 1.20.

FIGURES 1 – 4. Metapone madagascarica, holotype worker, see text for dimensions.

FIGURES 8 – 11. Metapone vincimus, paratype worker, HW 0.75, PMW 0.56, MSL 1.20.

FIGURES 12 – 15. Metapone africana sp. n., holotype worker, see text for dimensions.