[3] Apalus bimaculatus is a widespread species over much of Europe, as far north as southern Scandinavia[4] although it is absent from Great Britain.

[3] The adults of this beetle emerge early in the spring to mate and to lay their eggs near the nesting aggregations of their host bee.

[3] The triungulins do however react to the secretions of the adult host bees, orienting their movements towards them and this may be the first stage of being carried to the nest.

[3] Once in the nest they consume the pollen stores of the bee as well as any unhatched eggs or larvae and overwinter to emerge in the early Spring.

[4] In Norway it was similarly regarded as being rare but has since been shown to be quite common in the south with at least 20 populations known, one reason for its apparent scarcity is that it in the Spring it emerges very early, earlier that most entomologists.