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A NEW PULVINARIA FOUND ON ORCHIDS
Published online by Cambridge University Press: 31 May 2012
Extract
♀ scale rather like Lecanium hesperidum, elongate-oval, flattish, plae olive-brown, 2½ mm. long. Ovisac white, firm, elongate, parallelsided, distinctly longitudinally grooved, 8 mm. long, 2 broad. Derm colourless, not tessellate. Margin with a double row of easily-deciduous, strong, usually large, blunt spines, which are, near the lateral and posterior clefts, more or less branched at their tips. Spines of lateral clefts in threes, one very long and large, two very short and small. Anal plates brown, longer than broad, their outer sides meeting at about a right angle.
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