Chrysis grohmanni nadigorum Bischoff in Nadig & Nadig, 1935

(Figs 2 A–D, 3A–D)

Chrysis grohmanni var. nadigorum Bischoff in Nadig & Nadig, 1935: 18 . Holotype female [not syntype males]; Morocco: Goundafa (ETHZ).

Chrysis (Chrysis) nadigorum: Linsenmaier 1959: 108 (key, succincta group), 110 (descr.), 190 (cat.); Linsenmaier 1999: 150 (key), 154 (descr.).

Chrysis grohmanni var. nadigorum: Kimsey & Bohart 1991: 416 (synonymous of Chrysis grohmanni Dahlbom, 1854).

Type locality. Morocco: “ Goundafa, 1♀ ”.

Holotype, ♀: Goundafa, Maroc 14.-15.VII.32 Ad. Nadig // Chr. grohmanni nadigorum Typ. Bis. Det. Bischoff.

Remarks. The description of Chrysis grohmanni nadigorum was based on a female, to be considered the holotype. Kimsey & Bohart (1991: 416) erroneously reported syntype males deposited in Berlin. Further specimens were eventually searched in Berlin by the first author (PR) without success. Linsenmaier (1968) designated in his collection a male specimen as the allotype. The latter has no type status because it is not part of the type series and it was collected in Morocco at Asni on 25 May 1964 by Linsenmaier himself, after the original description.

Chrysis nadigorum was upgraded to species rank by Linsenmaier (1959), who later described the genital capsule (Linsenmaier 1968), which is similar to that of Chrysis gribodoi Abeille de Perrin, 1878 (Fig. 2C). It was synonymised with Chrysis grohmanni Dahlbom, 1854 by Kimsey & Bohart (1991), and finally revalidated by Linsenmaier (1999). It is a valid species with a distinct chromatic sexual dimorphism: the male is entirely blue-green (Fig. 2D), whereas the female has red metasomal terga II and III (Figs 2 A–B). Linsenmaier (1968) recorded a chromatic variant of the female, in which the metasoma is entirely red. An assessment of the variability of this species is currently unfeasible because the species is very rarely collected (Linsenmaier 1968) and, as far as we know, only a few Moroccan specimens are deposited in ETHZ, NMLU, and in the private collections of the first author, Gian Luca Agnoli (Bologna, Italy) and Marek Halada (České Budějovice, Czech Republic).