18 Transactions. — Zoology. 



agglomerated. There is a good deal of difficulty in distinguish- 

 ing between the two. 



The adult male has the thorax and abdomen brownish- 

 yellow, the feet and antennae lighter in colour : the wings 

 iridescent with a red nervure, which in some specimens is 

 rather conspicuous. The abdominal spike seems to vary in 

 length, but is usually about half as long as the abdomen : 

 from the two small tubercles at its base spring two setae, which 

 bear rather long cottony "tails." Antennae of ten joints, 

 nearly all long and subequal, the three last and the second 

 rather shorter than the rest, the first verj'- short : on the last 

 joint three slender knobbed hairs, and numerous fine hairs on 

 each joint. Feet normal. Dorsal eyes, four ; ventral eyes, 

 four: ocelli, two. Length of insect about T^rin. 



The colours of the body of this male and the red nervures 

 of the wings render it rather a pretty little object. 



Ctenochiton dacrydii, sp. nov. Plate II., figs. 1-4. 



Test of adult female white, or with a slight yellowish 

 tinge, moderately thick, formed of a number of subcircular 

 segments, which seem to be very brittle, and apt to break o&: 

 the edge of each segment is irregular, and the surface marked 

 with irregular subconcentrical lines, and also radiating lines, 

 so that it has somewhat the appearance of a fish-scale : the 

 circular lines are rather deeply indented. Fringe in the speci- 

 mens seen fragmentary. The segments of the test are some- 

 times convex, sometimes flatfish. 



Test of male unknown. 



Adult female dark-brown or reddish-brown, very convex 

 or semi-globular, hollow beneath ; diameter about fin. An- 

 tennae of (probably) seven joints. Feet norinal. Abdominal 

 cleft inconspicuous and short ; anogenital ring with numerous 

 hairs. Mentum dimerous. The female tills the test, and does 

 not shrivel at gestation, and the dark body showing through 

 the test gives the whole a brownish appearance. 



Female of second stage brown, elongated, flatfish, but be- 

 coming more convex latterly. Average length about jjin. An- 

 tenme of six rather confused joints, the last bearing some 

 hairs. Feet slender ; digitules fine hairs. Abdominal cleft 

 and lobes normal. The margin of the body, all round, is 

 minutely crenulated. 



Larva yellow, elongated, flatfish. Length about -f^Qin. 

 Antennae of six joints. Feet normal. Mentum dimerous. 

 Abdominal cleft and lobes distinctly Lecanid. The margin of 

 the body, all round, is minutely crenulated. 



Hab. In New Zealand, under the bark of Dacrydmm 

 mijyressinum (rimu) in the Eeefton district. 



This is a fine species, and, although I am departing from 



