Species Eriococcus casuarinae (Maskell, 1893)

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Regional Maps

• Gossyparia casuarinae Maskell, W.M. 1893. Further coccid notes: with descriptions of new species from Australia, India, Sandwich Islands, Demerara, and South Pacific. Transactions and Proceedings of the New Zealand Institute 25: 201-252 [227] [Eriococcus casuarinae (originally described in Gossyparia) is the senior homonym of Rhizococcus casuarinae = Eriococcus chalazgamarum].

Ecological Descriptors

Sap-feeder.

GENERAL

Description and illustration by Maskell, W.M. 1893. Further coccid notes: with descriptions of new species from Australia, India, Sandwich Islands, Demerara, and South Pacific. Transactions and Proceedings of the New Zealand Institute 25: 201–252. Type information by Deitz, L.L. & Tocker, M.F. 1980. W.M. Maskell's Homoptera: Species-group names and type-material. New Zealand Department of Scientific and Industrial Research, Information Series 146: 1–76.

SYSTEMATICS

Lindinger, L. 1933. Beiträge zur Kenntnis der Schildläuse (Hemipt. – Homopt., Coccid.). Entomologischer Anzeiger 13: 77–166 realized when he synonymized the genera Rhizococcus, Eriococcus and Gossyparia with Nidularia that the species Gossyparia casuarinae Maskell, 1893 and Rhizococcus casuarinae Maskell, 1893 would be homonyms. As the first reviser, he apparently proposed the replacement name Nidularia chalazgamarum for Rhizococcus casuarinae and maintained Nidularia casuarinae for what Maskell considered to be Gossyparia. This action is fairly obscure in the Lindinger, L. 1933. Beiträge zur Kenntnis der Schildläuse (Hemipt. – Homopt., Coccid.). Entomologischer Anzeiger 13: 77–166 publication and Hoy, J.M. 1963. A catalogue of the Eriococcidae (Homoptera: Coccoidea) of the world. New Zealand Department of Scientific and Industrial Research Bulletin 150: 1–260 incorrectly interpreted it as an invalid replacement name.

STRUCTURE

Adult females brown, varying from light to dark, elongate, convex, elliptical and resting on a cushion of grey cotton which leaves the insect almost entirely exposed. First-instar nymphs brown, flattish, elliptical (see Maskell, W.M. 1893. Further coccid notes: with descriptions of new species from Australia, India, Sandwich Islands, Demerara, and South Pacific. Transactions and Proceedings of the New Zealand Institute 25: 201–252).

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