26 Transactions.— Zoology. 



The adult male has nine-jointed antennas, all the joints except the first 

 long and hairy. Foot not so slender or long as in the last species, the 

 tarsus being a good deal thicker. Digitules fine hairs. The penis, hi some 

 of my specimens, which as usual protrudes from the abdominal spike as a 

 long white soft tube with minute hairs, seems to end in a somewhat large 

 round knob, which I have not noticed in any other species. 

 5. Ctenochiton elceocarpi, sp. nov. 

 Figs. 12-14. 



Test of adult female oval, nearly circular, black in colour, divided 

 into hexagonal and pentagonal segments which are not conspicuous, and of 

 which the median series forms a very slightly elevated ridge somewhat 

 lighter in colour. The test is only slightly convex. The fringe is very long 

 and conspicuous, the segments toothlike. Diameter of test, exclusive of 

 the fringe, reaches -J- inch. 



The adult female fills the test, as usual. Colour black : antennas 

 somewhat long (fig. 14), of seven joints (I think, otherwise the third joint is 

 abnormally long), a few hairs on the last joint. Foot normal ; upper 

 digitules strong and thick, lower pair very broad. On the skin are a 

 number of large oval spots which appear to be the orifices of spinneret 

 tubes. 



In the second stage this insect has a somewhat remarkable test of white 

 wax, which is not, as usual, almost homogeneous, but is made up (fig. 13) 

 of a number of detached plates somewhat resembling those of the genus 

 Orthezia. The fringe is here even longer than in the adult, and its long 

 white teeth curl in different ways, so that the whole test presents a rather 

 elegant appearance. The insect beneath has the normal Lecanid shape, but 

 wants the usual wavy outline of Ctenochiton. All round the edge is a row 

 of sharp conical spines set pretty closely together. Feet normal ; antennae 

 of six somewhat confused joints. Extreme length of test, including fringe, 

 sometimes ^ inch. 



I do not know the male. 



From Elceocarpus dentatus (hinau) in the neighbourhood of Wellington. 



This species is, in some respects, similar to C. fnscus, mihi (Trans., 

 vol. xvi., p. 131), but differs in the much more flattened adult test, the 

 longer antennae, the presence of the oval spots, and also in the peculiar test 

 of the second stage. 



Ctenochiton flavus, mihi. 

 (Trans., vol. xvi., p. 130.) 



The tests of the second stage of this species, which resemble somewhat 

 Ceroplastes rusci, Linn., occur not uncommonly on Elaocarjnis and Lepto- 

 spermum, near Wellington. 



