Chrysis illigeri Wesmael, 1839

Paukkunen, Juho, Berg, Alexander, Soon, Villu, Odegaard, Frode & Rosa, Paolo, 2015, An illustrated key to the cuckoo wasps (Hymenoptera, Chrysididae) of the Nordic and Baltic countries, with description of a new species, ZooKeys 548, pp. 1-116 : 55-56

Taxon classification Animalia Hymenoptera Chrysididae

Chrysis illigeri Wesmael, 1839 Figs 78, 111, 139

Chrysis illigeri Wesmael, 1839: 176.

Chrysis succincta var. chrysoprasina Trautmann, 1927: 159, not Förster, 1853.

Chrysis succincta f. helléni Balthasar, 1953: 285, replacement name for chrysoprasina Trautmann, 1927.

Chrysis helleni Linsenmaier, 1959: 113, not Balthasar, 1953.

Diagnosis.

Length 5-8 mm. The species resembles Chrysis bicolor in colouration, but the anterior margin of the pronotum, the mesoscutum and the metasoma are usually mainly red in the male (not greenish), and the posterior margins of the black spots of S2 are not as oblique in the female (Fig. 111). Compared to Chrysis bicolor , the malar space is longer (Fig. 139), the punctation of T2 is sparser and the metascutellum is not as elevated in profile.

Distribution.

Denmark, Estonia, Finland, Latvia, Lithuania, Norway, Sweden. Common. - West Palearctic: Europe ( Linsenmaier 1997).

Biology.

Habitat: sparsely vegetated sandy areas. Adults occasionally visit flowers of Apiaceae , Asteraceae , Euphorbiaceae and Rosaceae ( Linsenmaier 1997, Rosa 2004, our own obs.). Flight period: late May to late August. Host: Tachysphex pompiliformis (Panzer) ( Crabronidae ) ( Westrich 1983, Morgan 1984, Saure 1998).