This volume, code named DH 53b, was published in 2009. It's the second of two volumes covering all species of hoverflies (Syrphidae) found in the Nordic countries. Hoverflies are the “nice flies”, who feed off flowers, don't infect you with any disease and even look somewhat aesthetically pleasing. They are sometimes known as flower flies. Indeed, that is the Swedish name (blomflugor).
This hoverfly volume includes 243 species of the subfamilies Ersalinae and Microdontinae. Rare guests are also covered. The illustrations are in color, and so are the photos. The species presentations are in Swedish, with very short English summaries. The identification keys are bilingual. Even if you don't understand the Swedish language, the hoverfly volumes are excellent collector's items. This could work even on your coffee table! Five stars.