Maskell. — On New Zealand Coccidfe. 227 



protrudes (fig. 23) ; this springs from the anal extremity of the insect. The 

 tests almost wholly enclose the insect, only a little space being left on the 

 underside. 



The insect itself completely fills its waxy shell. It is deep red in colour, 

 almost spherical, quite smooth and hard, but the skin is somewhat thin, so 

 that in detaching it from the test it is easy to wound it. The outline is 

 smooth and free from corrugations (fig. 24), except that a few fine line-like 

 grooves traverse it ; in general appearance it is like a round, hard, red ball. 

 No hairs are visible, but from the anal extremity, which is darker in colour 

 than the rest, springs a long white seta protruding through the test. This 

 seta is tubular, glassy, and at the point where it leaves the body there is a 

 short tuft of white cotton. 



At first sight there seem to be no organs — feet, antennae, or rostrum ; 

 but closer inspection reveals them all, of very small size. The mentum is 

 tri-articulate, and has a few hairs at its tip. The rostral setfe are short. 



The antennae (fig. 25) are very short, and can be of little use, shut up 

 as the insect is in its shell. They are broad at the base, tapering in a some- 

 what regular cone, with eight joints, of which the first seven are very short, 

 the eighth a little longer and rounded at the tip. On all the joints a few hairs. 



The feet (fig. 26) are completely atrophied, and I can only make out 

 three joints besides the claw : there seems to be no trochanter : digitules, I 

 think, only two, both extremely minute. The whole leg has a fat, bloated 

 appearance. 



On maceration in potash, to get rid of the interior substance, it is seen 

 that the skin is marked with a great number of spinneret orifices, of two 

 sizes. They are all circular ; the larger seem to be simple ; the smaller 

 have an inner tube made up of several circles. The trache® are enormous, 

 with conspicuous spiral markings ; they abut in sixteen large ch'cular 

 spiracles. The spiracles and the tracheae for a short distance form brown 

 tubes having, a little way within the body, a kind of crown of beads, so 

 that they look like brown goblets receiving the ends of the tracheae. 

 Towards the anal extremity is a large patch coloured brown, of which the 

 anal orifice is the centre ; in this the spinnerets are much more numerous, 

 and their tubes seem to converge towards the anus. 



The anal orifice itself forms the extremity of a large tube, exactly 

 resembling that which, in my description of the adult female, I termed the 

 oviduct. From this tube, which is never itself exserted, springs the seta 

 spoken of above. I fail to make out the use of this tube and seta in this stage. 



The insect at this stage emits a strong and fetid odour, peculiarly 

 unpleasant, which clings for some time to the fingers after handling it or its 

 tests. 



