The _Psychina_ and _Micropterygina_ are included amongst the _Micros_ by most modern authors. I have, however, described and figured certain conspicuous and interesting species belonging to both these groups. The insects in question have, until so very recently, been regarded as _Macros_, that I think it would be a mistake to omit them in the present volume. There can, however, be no question that the modern view is the correct one, and that notwithstanding the large size of some of the species, they are really closely allied to those _Micro-Lepidoptera_, with which they are now associated. Of the _Psychina_ we have one family represented in New Zealand--the _Psychidæ_. Family 1.--PSYCHIDÆ. "Head densely rough-haired. Ocelli large. Tongue obsolete. Antennæ half the length of the fore-wings or less, in male strongly bi-pectinated to apex. Labial palpi very short, hairy. Thorax densely hairy above and beneath. Abdomen, femora, and tibiæ densely hairy, posterior tibiæ without middle spurs, end spurs extremely short. Fore-wings with vein 1_a_ anastomosing with 1_b_ before middle; 1_c_ (if present) coincident with 1_b_ beyond middle, 7 absent. Hind-wings, with vein 8, connected by bar with upper margin of cell. Female apterous, without legs or developed antennæ. {123}"A rather small family of universal distribution, but commoner in warm countries. Male imago with thinly scaled wings, without markings; flight strong and swift, sometimes in sunshine. The female is almost wholly helpless; the abdomen is at first greatly distended with eggs, and ultimately shrivels up. "Ovum oval, smooth. Larva inhabiting a strong portable silken case, covered with fragments of stick or refuse. Pupa within the larval case."--(Meyrick.) There are two genera in New Zealand closely allied to each other. 1. OECETICUS. 2. OROPHORA. Genus 1.--OECETICUS, Guild. "Ocelli present. Antennæ 1/3, in male strongly bi-pectinated, much more shortly on apical half. Labial palpi extremely short, rough-haired. Abdomen in male very elongate, roughly hairy. Legs hairy, tibiæ without spurs, posterior tarsi extremely short and stout. Fore-wings with veins 4 and 5 short-stalked, 7 sometimes out of 9, 8 and 9 stalked, forked parting-vein well defined. Hind-wings with veins 4 and 5 stalked, forked parting-vein well defined, 8 connected by bar with cell beyond middle. An additional vein (9) rising from 8 beyond bar, another (10) from 8 before bar, and another (11) from base of costa running into 8 before 10." (See Plate I., figs. 30, 31.) "This generic name was wrongly spelt _Oiketicus_ by its originator and others, for which there is no possible justification. I have corrected it."--(Meyrick.)