Cyrtolabulus suboscurus ( Giordani Soika, 1941 )

Selis, Marco, 2024, Revision of the genus Cyrtolabulus van der Vecht in Madagascar (Hymenoptera: Vespidae: Eumeninae), Zootaxa 5406 (1), pp. 66-86 : 82-83

Cyrtolabulus suboscurus ( Giordani Soika, 1941) ( Fig. 11 )

Labus suboscurus Giordani Soika 1941: 183 , ♀ —“ Madagascar: Vallée del Sombirano ” (type lost).

Pseudonortonia madacassa Gusenleitner 2012a: 523 , 527, figs. 8–10, ♀ —“ Madagaskar (NW), Nosy-Be Island ” (HZWA). Syn. nov.

Diagnosis. Recognized by the following combination of characters: sculpture of head and mesosoma dense, clypeus with coarse and dense punctures, pronotal carina visible on lateral thirds of pronotum, tegula broadly rounded posteriorly, wider in posterior half and deeply punctate, transverse carina of metanotum sharp, propodeum with a short but distinct horizontal face, S2 longer than T2, apical margin of T3 broadly rounded, lamellate and preceded by a series of shallow punctures.

Material examined. No specimens were available for direct examination.

Distribution. Madagascar: Antsiranana ( Giordani Soika 1941; Gusenleitner 2012a) ( Fig. 12 ).

Notes. Both in the original description ( Giordani Soika 1941) and in a subsequent paper ( Giordani Soika 1973) the type was stated to be deposited in MSNVE, but it was not found during the recent reorganization of the collection (cf. Dal Pos et al. 2022). It is to be considered lost.

Gusenleitner (2012a) described Pseudonortonia madacassa as the first Pseudonortonia from Madagascar, comparing it to the continental and unrelated genus Omicrabulus Giordani Soika due to the similarly enlarged tegulae. The holotype was not available for direct examination but pictures, both from the original description ( Gusenleitner 2012a: Figs. 8–10 ) and received from Herbert Zettel, show how this taxon cannot be included in Pseudonortonia , being a Cyrtolabulus . Comparison of the pictures with the original description shows how this species shares all diagnostic characters with Cyrtolabulus suboscurus ( Giordani Soika, 1941) , making it a junior synonym of the latter.

Figures

FIGURE 8. Cyrtolabulus scrobalis sp. nov., female holotype. A–B, habitus. C, head. D, tegula.

FIGURE 9. Cyrtolabulus sollicitus (Giordani Soika). A–B, habitus of female. C, head of male. D, head of female.

FIGURE 10. Cyrtolabulus sollicitus (Giordani Soika). A, tegula. B, male genitalia (aedeagus in ventral and lateral view, paramere with detail of digitus).

FIGURE 11. Cyrtolabulus suboscurus (Giordani Soika), female holotype of Pseudonortonia madacassa Gusenleitner.

FIGURE 12. Distribution maps of Malagasy Cyrtolabulus.