An Account of the Insects Noxious to Agriculture and Plants in New Zealand / The Scale Insects (Coccididae)

by William Miles Maskell

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[INDEX OF PLANTS AND THE COCCIDIDÆ ATTACKING THEM.]

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This list is of course only approximate, as insects may at any time be found on other trees than those given.

Icerya Purchasi is omnivorous, and it has not been thought necessary to repeat it here against every plant in the list; but it has been set against some.

The adult female of Cœlostoma zælandicum may also be found wandering over numbers of native trees in forests.

In hothouses and greenhouses all sorts of plants are liable to attack.

Key to Symbols Following Insect Listings

* Unsightly: spoiling appearance of plant. † Usually accompanied by much black fungus. ‡ Likely to do much injury to plant.

Plants.	Insects.
Alsophila Colensoi (fern)	Lecanium mori. *
Apple	Mytilaspis pomorum. ‡
"	Dactylopius glaucus. * ‡
Apricot	Mytilaspis pomorum. ‡
Ash	" pomorum. ‡
Asplenium bulbiferum (fern)	Chionaspis dubia. * †
" lucidum	" dubia. * †
Astelia Cunninghamii	Mytilaspis cordylinidis. *
" "	" epiphytidis.
" "	Fiorinia asteliæ. * †
" "	" stricta.
" "	Pseudococcus asteliæ.
Atherosperma Novæ-Zælandiæ	Aspidiotus atherospermæ.
" "	Mytilaspis pyriformis. *
" "	Fiorinia asteliæ. *
" "	Ctenochiton viridis. * †
" "	Inglisia patella.
" "	Eriochiton spinosus.
Bavardia	Lecanium maculatum. * † ‡
Box	" hesperidum. * † ‡
Brachyglottis repanda	Fiorinia minima.
" "	Ctenochiton flavus.
" "	" fuscus. * †
Budlæia salicina	Aspidiotus budlæiæ.
Calceolaria	Dactylopius calceolariæ. * † ‡
Camellia	Aspidiotus camelliæ.
"	Lecanium hemisphæricum. * † ‡
"	" hesperidum. * † ‡
"	" oleæ. * † ‡
"	Pulvinaria camellicola. * † ‡
Carpodetus serratus	Aspidiotus carpodeti.
Cassinia leptophylla (tauhine)	Lecanium oleæ. * † ‡
Celmisia	Rhizococcus celmisiæ. *
Coprosma	Aspidiotus nerii.
"	Mytilaspis pyriformis. *
"	Chionaspis dubia.
"	Fiorinia asteliæ. *
"	Ctenochiton perforatus. * †
Coprosma	Ctenochiton viridis. * †
"	Inglisia patella.
"	Dactylopius glaucus. *
Cordyline australis (cabbage-tree)	Mytilaspis cordylinidis. * ‡
" "	Fiorinia stricta. * ‡
" indivisa (large-leaved cabbage-tree)	Mytilaspis cordylinidis. * ‡
" "	Fiorinia stricta. * ‡
Corynocarpus lævigata (karaka)	Aspidiotus nerii.
Cotoneaster microphylla	Mytilaspis pomorum. ‡
Cyathea Smithii (tree-fern)	Ctenochiton depressus. *
Cyathodes acerosa	Poliaspis media. *
" "	Eriococcus multispinus. *
Cypress	Icerya Purchasi. * ‡
Danthonia (grass)	Dactylopius calceolariæ. *
Dendrobium	Fiorinia stricta. *
"	Ctenochiton elongatus. * †
Drimys colorata	Mytilaspis drimydis.
" "	Inglisia patella.
Dysoxylon spectabile	Aspidiotus dysoxyli.
" "	Mytilaspis pyriformis. *
" "	Chionaspis dysoxyli. * ‡
Earina	Ctenochiton elongatus.
"	Fiorinia stricta. *
Elæocarpus dentatus (hinau)	Ctenochiton elæocarpi.
" "	" flavus.
" "	Inglisia ornata. *
" "	Eriococcus pallidus.
Eucalyptus	Mytilaspis cordylinidis. *
Euonymus	Aspidiotus camelliæ. * ‡
Ferns, various	Chionaspis dubia.
" "	Poliaspis media.
" "	Ctenochiton depressus. *
" "	Lecanium mori.
" "	Dactylopius glaucus. * ‡
Gahnia	Mytilaspis cordylinidis. *
Geniostoma ligustrifolia	Ctenochiton elongatus. *
Gooseberry	Fiorinia grossulariæ.
Gorse	Icerya Purchasi. * ‡
Grasses, various	Dactylopius poæ.
" "	Icerya Purchasi. * ‡
Hawthorn	Mytilaspis pomorum. ‡
Hedycarya	Fiorinia stricta.
Hoheria angustifolia	Eriococcus hoheriæ.
Holly	Lecanium hesperidum. * † ‡
Hymenanthera crassifolia	Ctenochiton hymenantheræ. * †
Ivy	Lecanium hesperidum. * † ‡
Knightia excelsa	Eriococcus multispinus. *
Laurel	Lecanium hesperidum. * † ‡
Lemon	Aspidiotus coccineus. * ‡
"	Icerya Purchasi. * ‡
Leptospermum scoparium (manuka)	Mytilaspis leptospermi.
" "	Ctenochiton flavus.
" "	Inglisia leptospermi.
" "	" ornata.
" "	Planchonia epacridis.
" "	Cœlostoma wairoense. *
Leucopogon Fraseri	Poliaspis media. *
" "	Planchonia epacridis.
Lilac	Mytilaspis pomorum. ‡
Melicope ternata	Eriochiton spinosus.
Metrosideros tomentosa (pohutukawa)	Lecanochiton metrosideri. * †
" robusta (rata)	Mytilaspis metrosideri.
" " "	Lecanochiton metrosideri. * †
Muhlenbeckia adspersa	Fiorinia stricta.
" "	Eriochiton spinosus.
" "	Cœlostoma zælandicum.
Myoporum lætum (ngaio)	Eriococcus pallidus.
Myrtle	Lecanium hesperidum. * † ‡
Norfolk Island pine (Araucaria)	Eriococcus araucariæ. * † ‡
Olearia Haastii	Eriochiton hispidus. * †
Orange	Aspidiotus coccineus. * ‡
"	Chionaspis citri.
"	Lecanium hesperidum. * † ‡
"	" oleæ. * † ‡
"	Icerya Purchasi. * ‡
Orchids (hothouse)	Aspidiotus epidendri. * ‡
" "	" nerii. * ‡
" "	Dactylopius glaucus. * ‡
Palms (hothouse)	Aspidiotus epidendri. * ‡
" "	" nerii. * ‡
" "	Dactylopius glaucus. * ‡
Panax arboreum	Fiorinia minima.
" "	Ctenochiton flavus. * †
" "	" fuscus. * †
" "	" perforatus. * †
" "	" viridis. * †
" "	Dactylopius glaucus. *
Parsonsia	Chionaspis minor.
Peach	Mytilaspis pomorum. ‡
Pear	Diaspis santali.
"	Mytilaspis pomorum. ‡
Pellæa rotundifolia (fern)	Chionaspis dubia.
Phormium tenax (New Zealand flax)	Mytilaspis cordylinidis. *
" "	Fiorinia stricta. *
" "	Dactylopius calceolariæ. *
" "	Cœlostoma wairoense. *
Phymatodes Billardieri (fern)	Mytilaspis phymatodidis. *
Pines and firs	Icerya Purchasi. * ‡
Piper excelsum	Ctenochiton piperis.
" "	Dactylopius glaucus. *
Pittosporum (various)	Fiorinia asteliæ.
" "	Ctenochiton perforatus. * †
" "	" viridis. * †
" "	Dactylopius glaucus. * †
Plagianthus	Ctenochiton depressus. *
Plum	Diaspis santali. ‡
"	Mytilaspis pomorum. ‡
Poa anceps (tussock-grass)	Dactylopius poæ.
Rhipogonum scandens (supplejack)	Chionaspis minor. *
" " "	Cœlostoma zælandicum.
Rose	Diaspis rosæ. * ‡
"	Icerya Purchasi. * ‡
Rubus australis (bush-lawyer)	Chionaspis dubia. *
" " "	Ctenochiton perforatus. * †
" " "	" viridis. * †
" " "	Eriococcus multispinus.
Rubus australis (bush-lawyer)	Dactylopius glaucus. *
Santalum Cunninghamii (maire)	Diaspis santali. *
" " "	Rhizococcus fossor.
Sophora tetraptera (kowhai)	Aspidiotus sophoræ.
Sweetbriar	Icerya Purchasi. * ‡
Sycamore	Mytilaspis pomorum.
Thorn	" pomorum. ‡
Various greenhouse or hothouse plants	Aspidiotus epidendri. * ‡
" " " "	" nerii. * ‡
" " " "	Diaspis Boisduvalii. * † ‡
" " " "	Lecanium hemisphæricum. * † ‡
" " " "	" hesperidum. * † ‡
" " " "	" hibernaculorum. * † ‡
" " " "	" mori.
" " " "	" oleæ. * † ‡
" " " "	Dactylopius glaucus. * ‡
" " " "	Icerya Purchasi. * ‡
Veronica (various)	Poliaspis media.
" "	Lecanium hesperidum. * †
" "	Dactylopius alpinus. *
Vitex littoralis (puriri)	Aspidiotus carpodeti.
Wattle (various)	" epidendri. *
" "	Diaspis Boisduvalii. *
" "	Icerya Purchasi. * †
Weeping-willow	Aspidiotus camelliæ.