Carnegie, A.J.M. 1957a Observations on the behaviour of crawlers of Lepidosaphes becki Newm (Hom.: Diaspidinae).. Journal of the Entomological Society of Southern Africa 20: 164-169.

Notes: Five experiments were performed that indicate that mussel scale crawlers are neither negatively nor positively phototropic, so that they show complete indifference to conditions of light when they are moving about before settling down to feed.