Maskell. — On Coccididge. 19 



my usual rule in describing it from only three specimens of 

 the adult female, I believe that I have correctly assigned it to 

 the genus Ctenochitoii, from the character of the test and its 

 segments. It appears to be by no means common. Mr. 

 Eaithby found the first specimens under thick moss on the 

 roots just above the ground ; later finds were under the bark 

 of the trunk ; and he thinks that the species may sometimes 

 be subterranean. 



Ctenochiton depressus, Maskell. N.Z. Trans., vol. xvi., 



1883, p. 132 ; Scale-Ins. of N.Z., p. 66. 



An insect occurs in the Eeefton district which I believe, after 

 very careful examination, to be a small form of this species. 

 It is found on a very small-leaved Goprosma, and the slight 

 differences observable are, I think, due to the character of the 

 food-plant. These differences are : a somewhat smaller size, 

 averaging about yj^n. as against -fin. for the type ; a more 

 convex and elongated form of test, and a generally very 

 smooth appearance : none of these things is sufficient to re- 

 quire specific distinction. The antennte might be considered 

 as having six or seven joints according as one attaches im- 

 portance to the division in the third, which I have called a 

 " false joint " : a similar character is noticeable in most species 

 of the genus. The smooth segments of the test remove the 

 insect from C. liymenantlierce, the only other resembling it ; 

 and on the whole I leave it as a small form of C. depressus. 



Genus Inglisia, Maskell. 



Inglisia inconspicua, sp. nov. Plate II., figs. 5-7. 



Test of adult female white, elongated, narrow, convex, not 

 conical, with fringe either absent or very small ; texture 

 glassy, very thin anddehcate and brittle: segments polygonal, 

 marked with very delicate radiating striae of air cells, and still 

 finer concentric lines. Length of test averaging about lin. ; 

 height about J^in. Although the test itself is white,'' the 

 general appearance of the insect on a twig is brown, the 

 colour of the insect showing through the translucent seg- 

 ments. 



Test of male white, elongated, slightly convex, segmented, 

 with a posterior hinged portion for egress of the insect. 

 Length about -^^in. 



Adult female brown or reddish-brown, filling the test but 

 shrivelling at gestation. Margin bearing conical spines. 

 Antennae of six joints. Feet normal. 



Female of second stage light -brown or yellowish, flat, 

 covered with a thin test and with a short fringe. Length 

 about -^V^i- 



