SCALE-INSBCTS. 79 



SUBDIVISION II. LECANIDJE. 



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 pupae 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. hesperi- 



dum. 

 (2.) Species more or less convex, elongated; example, L. 



persicce. 



(3.) Species more or less globular, the skin tessellated; ex- 

 ample, L. aceris. 

 (4.) Species more or less globular, the skin perforated with 



oval markings ; example, L. hemisph&ricum. 

 (5.) Species rugose, with dorsal keels ; example, L. olece. 

 (6.) Species globular, with cleft beneath for attachment to 



twigs ; example, L. emeriti. 



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 punc- 

 tate. Antennae of eight joints ; on the first two and the last 

 three joints some hairs. Feet normal, rather long; one of the 



