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Hi Gerard
I think it's safe to call this Dalmannia dorsalis.
I don't know Dalmannia confusa, which appears to be known only from Croatia.
It's certainly not D. punctata (a single row of central spots) or D. marginata (all black scutellum).
There appears to be a bit of confusion* over dorsalis and aculeata, but it seems that aculeata has yellow front coxae and is larger (9 - 12 mm). D. dorsalis has black front coxae and is smaller (5 - 6 mm). On the basis of coxal colour, yours seems to be dorsalis. The size should confirm this.
Apparently D. dorsalis occurs in Finland, so perhaps Kahis is familiar with this species and can tell us whether it looks like it! ;)

* It appears that Seguy thought dorsalis was a synonym of aculeata, but his description of his other species (flavescens) fits dorsalis better, though it differs in a couple of points.