47. Lecanium maculatum, Signoret, Ann. de la Soc. Ent. de France, 1873, p. 400. Maskell, N.Z. Trans., Vol. XI., 1878, p. 207. Adult female naked; flat, elongated; dorsal skin marked with a median row of rather large oval spots reaching from the abdominal cleft to the region of the rostrum. Length, about 1/15in. Colour yellowish-brown. Antennæ of seven joints. Feet normal. Male unknown. Habitat in New Zealand--On _Bavardia_, in hothouses, Christchurch. In Europe on ivy. This insect belongs to Signoret's first series: the dorsal spots distinguish it from _L. hesperidum_. 48. Lecanium mori, Signoret, Ann. de la Soc. Ent. de France, 1873, p. 407. Maskell, N.Z. Trans., Vol. XVII., 1884, p. 29. (Plate XI., Fig. 4.) Adult female naked; elongated, convex; reddish; length, about 1/9in. Skin smooth, without spots, tessellations, or keels. Antennæ of seven joints. Feet normal. Adult male unknown: pupa covered by a white, elongated, segmented, glassy test. Habitat in New Zealand--On _Alsophila Colensoi_ and other ferns, Botanical Gardens, Wellington. In Europe on mulberry, &c. The insect belongs to Signoret's second series. 49. Lecanium oleæ, Bernard. _Chermes oleæ_, Bernard, Mem. d'Hist. Nat. Acad., 1872, 108. _L. oleæ_, Signoret, loc. cit., 1873, p. 440. Maskell, N.Z. Trans., Vol. XVII., 1884, p. 28. _The "Black Scale."_ (Plate XI., Fig. 5.) Adult female naked; semi-globular; dark-brown, sometimes almost black. Skin marked by one longitudinal and two transverse keels, not very conspicuous. Diameter, about 1/15in. Antennæ of eight joints. Feet normal. Anal ring with six hairs. Young insect flat, elongated, reddish-brown. The keels are more conspicuous than in the adult. Skin marked with numerous oval perforations. Male unknown. Habitat in New Zealand--On camellia, _Cassinia leptophylla_ (tauhine), and other plants, Wellington; Hawke's Bay; on various native trees, Whangarei. In Europe on olive. In America (where it is called the "black scale") on oranges and very many other plants. This insect belongs to Signoret's fifth series. A European species, _L. cycadis_, Boisduval, is said by Dr. Signoret to closely resemble _L. oleæ_, the only difference apparently being the possession of nine-jointed antennæ. This character is so exceptional in the genus that it perhaps may be but doubtful. Genus: PULVINARIA, Targioni-Tozzetti. Female insects naked, arboreal, constructing an ovisac. Male pupæ in cottony or waxy sacs. 50. Pulvinaria camellicola, Signoret, Ann. de la Soc. Ent. de France, 1873, p. 32. Maskell, N.Z. Trans., Vol. XI., 1878, p. 207. (Plate XII., Fig. 1.)