Species Eriococcus eucalypti Maskell, 1892

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• Eriococcus eucalypti Maskell, W.M. 1892. Further coccid notes: with descriptions of new species, and remarks on coccids from New Zealand, Australia and elsewhere. Transactions and Proceedings of the New Zealand Institute 24: 1-64 [dated 1891] [27].

Ecological Descriptors

Sap-feeder.

ID Keys

(Gullan, P.J. & Vranjic, J.A., 1991) [26] (adult female; Australian Eriococcus species on Eucalyptus)

GENERAL

Most detailed description and illustration by Maskell, W.M. 1892. Further coccid notes: with descriptions of new species, and remarks on coccids from New Zealand, Australia and elsewhere. Transactions and Proceedings of the New Zealand Institute 24: 1–64 [dated 1891]. Type information from 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

Slide-mounted adult female with: enlarged setae nipple shaped, with rounded apices, all approximately same size and covering dorsum (see Morrison, H. & Morrison, E.R. 1922. A redescription of the type species of the genera of Coccidae based on species originally described by Maskell. Proceedings of the United States National Museum 60: 1–120) except in posteromedial area of abdomen where few or none are present; microtubular ducts elongate, with no sclerotized area, some ducts associated with bases of enlarged setae; marginal line of oral rim tubular ducts in addition to normal macrotubular ducts (Miller, personal observation, 1999).

STRUCTURE

Sac of adult female yellow or reddish-brown. Sac of male is lighter in color, more cylindrical and much smaller. Adult female is dark purple or almost black. First-instar nymph red, flattish, elliptical and active (see Maskell, W.M. 1892. Further coccid notes: with descriptions of new species, and remarks on coccids from New Zealand, Australia and elsewhere. Transactions and Proceedings of the New Zealand Institute 24: 1–64 [dated 1891]).

ECONOMIC AND CONTROL

This species has been observed to be very destructive to young gum trees (see Maskell, W.M. 1892. Further coccid notes: with descriptions of new species, and remarks on coccids from New Zealand, Australia and elsewhere. Transactions and Proceedings of the New Zealand Institute 24: 1–64 [dated 1891]).

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