No CrossRef data available.
Published online by Cambridge University Press: 31 May 2012
♀ scale nearly circular, somewhat flattened, little convex, roughish, dark gray above bark, reddish-brown below bark, 2 mm. diameter; exuviæ little exposed, often concealed by whitish secretion, orange, placed to one side of centre; ventral scale, delicate and white; old scales dark brown, often almost black. Scales are thickly massed.
♀ oval, white, marked with irregular light yellow spots; first and second lobes, and margin of last segment, yellowish.