Pareumenes (Brachyparmenes) Giordani Soika 1987

Subgenus Brachyparmenes Giordani Soika, 1987 Brachyparmenes Giordani Soika, 1987: 201, subgenus of Pareumenes de Saussure. Type species: Pareumenes (Brachyparmenes) punctatissimus Giordani Soika, 1987, by original designation and monotypy. Interzumia Gusenleitner, 2002: 307, 317, genus. Type species: Interzumia rufonigra Gusenleitner, 2002, by original designation and monotypy. Syn. nov. Notes. Gusenleitner (2002) described the monotypic genus Interzumia to accommodate the new species Interzumia rufonigra. He compared Interzumia with the American genus Montezumia de Saussure, stating that the two genera are closely related and differentiated only by the absence of epicnemial carina in Interzumia. The similarity to Montezumia seems to be only superficial since most morphological characters differ among the two genera (e.g. morphology of propodeum). The holotype of Interzumia rufonigra was not available for direct examination, but its description and the study of the holotypes of Pareumenes mediator Gusenleitner (a junior synonym of I. rufonigra) and of the related P. mirificus show that Interzumia can be considered a junior synonym of Pareumenes (Brachyparmenes). It is to be noted that Pareumenes rufoniger and P. mirificus differ from P. punctatissimus Giordani Soika, the type species of Brachyparmenes, in the shape of T1: elongated and weakly convex in P. punctatissimus, shorter and strongly convex in P. rufoniger and P. mirificus. These differences are here considered of specific value only and not indicative of different (sub)genera, but a complete phylogenetic analysis of Pareumenes and related genera is needed to better understand the limits of this heterogeneous group. The shiny apicolateral lamelliform appendices of T1, mentioned as distinctive of Interzumia both in the original description (Gusenleitner 2002) and in the key to genera published by Carpenter et al. (2009), are just the reflection of the basalmost margin of T2, serving as articulation with T1 and observed in most Eumeninae with various degree of development.