AN ACCOUNT
OF THE
INSECTS NOXIOUS TO AGRICULTURE AND PLANTS
IN
NEW ZEALAND.
THE SCALE-INSECTS
(COCCIDIDÆ).
By W. M. MASKELL, F.R.M.S.,
REGISTRAR OF THE UNIVERSITY OF NEW ZEALAND.
WELLINGTON:
BY AUTHORITY: GEO. DIDSBURY, GOVERNMENT PRINTER.
1887.
Mr. Maskell's Account of the Scale-Insects occurringin New Zealand is published by the State Forests andAgricultural Department, under the instructions of theHon. John Ballance, Commissioner of State Forests.
Wellington, 31st March, 1887.
CONTENTS.
| Chapter. | Page | |
| Glossary of Terms and Phrases | 1 | |
| I. | Introductory | 5 |
| II. | Characters, Life-history, and Metamorphoses of Coccididæ | 8 |
| III. | Products of the Coccididæ (Honeydew; Black Fungus) | 14 |
| IV. | Checks to Increase of Coccididæ, Parasites, etc. | 18 |
| V. | Remedies against Coccididæ | 24 |
| VI. | Catalogue of Insects and Diagnosis of Species | 37 |
| Groups— Diaspidinæ | 39 | |
| Lecanidinæ | 62 | |
| Hemicoccidinæ | 87 | |
| Coccidinæ | 88 | |
| Index of Plants and the Coccididæ attacking each | 111 | |
| Index of Genera and Species | 115 | |
The number and variety of the insect pests which live on theplants of New Zealand, whether n