Apterostigma dentigerum

Distribution
This taxon was described from Costa Rica.

Nomenclature

 *  dentigerum. Apterostigma dentigerum Wheeler, W.M. 1925a: 51 (w.q.m.) COSTA RICA. Senior synonym of angulatum, dubium: Weber, 1958c: 246. See also: Lattke, 1997: 151.
 * angulatum. Apterostigma collare subsp. angulatum Weber, 1938b: 169, figs. 4, 12 (w.q.) PANAMA. Wheeler, G.C. 1949: 667 (l.). Raised to species: Weber, 1941b: 111. Junior synonym of dentigerum: Weber, 1958c: 246.
 * dubium. Apterostigma collare subsp. dubium Weber, 1938b: 168, figs. 6, 14, 19 (w.q.) PANAMA. Raised to species: Weber, 1941b: 110. Junior synonym of dentigerum: Weber, 1958c: 246.