Literature
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- Borchsenius, N.S. 1966. A catalogue of the armoured scale insects (Diaspidoidea) of the world. (In Russian.) Nauka, Moscow, Leningrad, Russia. 449 pp.
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- Ferris, G.F. 1938. Atlas of the scale insects of North America. Series 2, Volume 2. Stanford University Press, California, USA. SII-1a, SII-2a, and SII-137 to SII-268.
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