Larvæ presenting at the extremity of the abdomen two conspicuous protuberances, or "anal tubercles," as in the following group, _Coccidinæ_; abdominal cleft and lobes absent. Adult females exhibiting the abdominal cleft and lobes of _Lecanidinæ_. Insects naked or covered with secretion. The formation of this group has been necessary to include certain insects, _e.g._, _Kermes_, which are evidently intermediate between the _Lecanidinæ_ and the _Coccidinæ_, exhibiting at various stages the characters of each. SUBDIVISIONS AND GENERA. Subdivision I. Adult females naked or covered with horny secretion, without fringe Kermitidæ. Adult females globular Kermes. Subdivision II. Adult females covered with a test of glassy or waxy secretion Cryptokermitidæ. Test hard, waxy, with single fringe Pollinia. Test hard, waxy, with double fringe Asterolecanium. None of the insects belonging to this group have as yet been reported as occurring in New Zealand. As regards the name "Kermes" included in the foregoing list, see N.Z. Trans., Vol. XVII., 1884, p. 17. Group IV.--COCCIDINÆ. Adult females variable in form and colour; body segmented, the segments more or less conspicuous; naked, or covered with secretion which is mealy, cottony, felted, or waxy; active or stationary. No abdominal cleft or dorsal lobes; abdomen ending in two more or less conspicuous protruding processes, or "anal tubercles." Mentum, when present, bi- or triarticulate. Larvæ exhibiting anal tubercles as in adult. Adult males of general form of the family: abdominal spike usually short. Antennæ usually of ten joints. Eyes often facetted. SUBDIVISIONS AND GENERA. Subdivision I. Adult females stationary; naked, or covered with cottony or felted secretion; antennæ of not more than seven joints; anogenital ring with six or eight short hairs; anal tubercles conspicuous. Eyes of male not facetted Acanthococcidæ. Adult female enclosed in closely-felted or waxy sac with double glassy fringe; apodous and without antennæ Planchonia. Adult females enclosed in a felted sac without fringe; retaining feet and antennæ Eriococcus. Adult females naked; retaining feet and antennæ Rhizococcus. _Genera not yet represented in New Zealand._ Adult females lying on cushion of cotton; apodous and without antennæ Nidularia.