Trichosirocalus troglodytes?

Trichosirocalus troglodytes?

Observation - Trichosirocalus troglodytes? - UK and Ireland. Description: Joy says elytra without recumbent scales, but if those white scales on the elytra are not recumbent, what is the term for them?

Joy says "elytra without recumbent scales", but if those white scales on the elytra are not recumbent, what is the term for them?