Curtis, J. 1843e Aspidiotus conchiformis (The apple-tree mussel scale, or dry scale.. Gardeners' Chronicle No. 42: 735-736. (Entomology--No. 4

Notes: [This paper is attributed to the author "Ruricola", which is known to be a pseudonym for J. Curtis.] Descriptive and biological notes on this scale species found on apple and pear trees.