Lacon candidus

Lacon candidus is a click beetle species in the family Elateridae, subfamily Agrypninae. The species is poorly documented in the provided source material, which instead focuses primarily on the stonefly Isogenus nubecula (Scarce Yellow Sally). The source mentions "click beetles" only once in passing as part of a general seasonal insect emergence description along the River Dee in Wales. No specific information about Lacon candidus biology, distribution, or ecology is contained in the provided context.