Douglas, J.W. 1887b Note on some British Coccidae (No. 8).. Entomologist's Monthly Magazine 24: 95-101, 165-171.

Notes: Lecanium beaumontiae, L. longulum, Orthezia insignis, n. spp.; description and discussion of 5 other lecanine coccids. (The last 3 pages (169-171), which include a description of Orthezia insignis n. sp. are dated January 1888.)