64 INSECTS NOXIOUS TO AOEICULTUKE. 



or (as called herein) test, of glassy, waxy, or horny secretion. 

 Test apparently homogeneous, really in most cases formed of 

 aggregated segments over the insect, and prolonged beyond the 

 body in a flat single fringe of separate, more or less triangular 

 or quadrate, segments. Fringe not always present or conspicuous 

 in all stages. Males, after first metamorphosis, constructing a 

 test of similar character but varying form. 



This subdivision, when first established by Targioni-Tozzetti, 

 included only the four genera Pollinia, Aster olecamum, Plan- 

 chonia 3 and Lecanodiaspis, all of which are apodous in the adult 

 stage of the female. In this work the two first of these are 

 included in a new group, HEMI-COCCIDIN^E ; Planchonia belongs 

 to the group COCCIDIN^E ; Lecanodiaspis is left in the present 

 subdivision. For the reasons leading to these changes, and the 

 inclusion in this subdivision of insects retaining the feet in all 

 stages, see N.Z. Transactions, Vol. XI., 1878, p. 207, and 

 Vol. XVI., 1883, pp. 125-128. 



Genus: LECANOCHITON, Maskell. 



N.Z. Trans., Vol. XIV., 1881, p. 222. 



Test of adult female horny in texture, formed partly of 

 secretion, partly of the pellicle of the second stage ; abdominal 

 cleft and lobes normal. 



30. LECANOCHITON METROSIDERI, Maskell. 



N.Z. Trans., Vol. XIV., 1881, p. 222; Vol. XVI., 1883, 



p. 129. 



(Plate VII., Fig. 1.) 



Test of adult female brown, hard, horny-looking, convex, 

 slightly elongated, open beneath, loosely attached to twigs by 

 the edges; at the top is the .pellicle of the second stage, which is 

 flat, and gives the test the appearance of an overturned basket, 

 of which the pellicle is the foot. Length of test about -j^g-in. 

 Remains of the thin white test of the second stage may some- 

 times be seen on the pellicle. 



Test of the male small, white, glassy, elongated, convex. 



The young insect, extremely minute, naked and active, is 

 flat, oval, brown, or rather reddish, usually found at the tips of 

 young shoots or on leaves. The antennae have six joints; on 

 the last joint are several hairs, amongst which is one excessively 



