Spinolia unicolor (Dahlbom, 1831)

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 : 42

Taxon classification Animalia Hymenoptera Chrysididae

Spinolia unicolor (Dahlbom, 1831) Figs 76

Chrysis unicolor Dahlbom, 1831: 32.

Spinolia unicolor : du Buysson (in André) 1893: 244.

Diagnosis.

Length 4-6 mm. The species is characterised by the entirely blue, greenish or violet-blue body, and the forewing radial sector vein, which ends remote from the wing margin (Fig. 76). The T3 is posteriorly edentate and has a small tooth anteriorly.

Distribution.

Denmark, Latvia, Sweden. Very rare. - Trans-Palearctic: from western Europe to Mongolia ( Linsenmaier 1959).

Biology.

Habitat: xerothermic sparsely vegetated sandy areas, often close to the seashore. Adults occasionally visit flowers of Asteraceae , Lamiaceae and Rosaceae ( Trautmann 1927, Benno 1950, Linsenmaier 1959). Flight period: late June to mid-August. Host: Pterocheilus phaleratus (Panzer) ( Vespidae : Eumeninae) ( Erlandsson 1968, Sörensson and Cederberg 2010).