Female of second stage flattish, elongated, wavy-edged; not exhibiting alternate conical and clavate spines. Young larva naked, flat, active; round the edge a row of clavate spines, but no conical spines. Length, about 1/50in. Adult male greenish-yellow; length, 1/24in. Antennæ of ten joints, all except the first bearing hairs. Foot normal; digitules fine hairs. Abdominal spike about half the length of the abdomen, with two long white setæ springing from the basal tubercle. Habitat--On _Coprosma lucida_, Riccarton Bush, Christchurch; _Drimys colorata_, (plentifully) on hill above Lyttelton; _Atherosperma_, Wellington. A very pretty little species, clearly distinguished by the form of the test and the alternate spines of the adult female. Subdivision II.--LECANIDÆ. Female insects naked in all stages; form variable; apodous in adult stage, or retaining the feet; viviparous or oviparous, with or without attached ovisac; abdominal cleft and lobes always present. Male pupæ in some cases covered with waxy secretion. Genus: LECANIUM, Illiger. Females naked, flat or convex; viviparous or oviparous; propagating without ovisac; arboreal. Dr. Signoret (loc. cit., 1873, p. 396) divides the genus into six series, as follows:-- (1.) Species flat, usually viviparous; example, _L. hesperidum_. (2.) Species more or less convex, elongated; example, _L. persicæ_. (3.) Species more or less globular, the skin tessellated; example, _L. aceris_. (4.) Species more or less globular, the skin perforated with oval markings; example, _L. hemisphæricum_. (5.) Species rugose, with dorsal keels; example, _L. oleæ_. (6.) Species globular, with cleft beneath for attachment to twigs; example, _L. emerici_. The following are the only species reported as yet in New Zealand; but the genus is so widely spread and the species are so numerous that doubtless many others will hereafter occur in this country. 43. Lecanium depressum, Targioni-Tozzetti, Catal. (1868), 37, 8; Stud. sul Coccin., 29. Maskell, N.Z. Trans., Vol. XI., 1878, p. 206. (Plate XI., Fig. 1.) Adult female elongated, somewhat acuminate at the cephalic end, slightly convex; reddish-brown; skin marked with two dorsal keels and numerous irregular tessellations, finely punctate. Antennæ of eight joints; on the first two and the last three joints some hairs. Feet normal, rather long; one of the lower digitules is larger than the other. Length of insect, about 1/10in. Male unknown. Habitat in New Zealand--On plants in greenhouses; Christchurch, Wellington. In Europe, on _Ficus_, in hothouses. This insect belongs to Signoret's fifth series. 44. Lecanium hemisphæricum, Targioni-Tozzetti, Stud. sul Coccin., 27. _Chermes filicum_, Boisduval (1867), 336; Targioni, Catal., 1868, 38, 17. Maskell, N.Z. Trans., Vol. XVII., 1884, p. 29. (Plate XI., Fig. 2.)