The New Zealand insect fauna 508 Endemism 513 Relationships . . . . . . . . 516 Shore insects . . . . . . . . 519 Ground-dwelling and soil insects 521 Insects of dead wood and fungi. 525 Cave and ground-water insects 526 Alpine insects . . . . . . . . 529 Moss insects ....... . 531 Insects associated with vertebrates 531 Endoparasitic insects 532 Acknowledgements . 533 References . . . . 533 XIV. The freshwater insects by I. D. McLELLAN. 537 Introduction. . 537 Ephemeroptera 537 Plecoptera 540 Odonata .. 545 546 Megaloptera. Mecoptera . 547 Trichoptera . 547 Chironomidae . 551 Blepharoceridae 552 Simuliidae . . 555 Thaumaleidae . 556 Coleoptera . . 557 Population comparisons 557 References . . . . . . 558 XV. The insects in relation to plants by J. S. DUGDALE 561 Abstract .................. . 561 Introduction. . . . 561 Some characteristics of insect-hostplant associations in New Zealand . . . . . . . . . . . . . . . . 568 . . . Associations involving warm-temperate plant genera ..... 568 Associations involving plant genera not restricted to warm-tem perate communities . . . . . . . . . . . . . . . 570 . . . Differences between North and South Island, and between these and outlying islands . . . . . . . . . . . . . . 572 . Differences between New Zealand and elsewhere. . . . . 573 Some characteristic phytophage types in New Zealand 575 Defoliators. . . . . . . . . . . . . . . . . 575 . . XIII Flower, fruit and seed-eating insects 576 Gallmakers 578 Miners 578 Live stem borers and shoot apex destroyers 579 New Zealand phytophages as botanists 584 The adventive flora and fauna. 584 Pollinators 586 References 587 XVI. Adaptation and change in Maori culture by R. C."