Published online by Cambridge University Press: 31 May 2012
Eulecanium fraxini, n. sp.–Adult ♀ scale 6 mm. long, 5 broad,2 high; some individuals are practically circular in outline and variable in size. In July the scales are well covered with a grayish powdery secretion; this being removed they are reddish brown, considerably wrinkled and pitted, surface shiny, texture thick.
Boiled in potash the derm becomes very clear and transparent, showing some large gland-pits 24 μ in diameter. Mouth-parts, legs and anal plates tinged with yellow.
* This was cites as an Aulacaspis, but Mr. Newstead has shown it to belong to Diaspis. (Ckll. in Litt.)