Maskell. — On New Zealand Coccidse. 221 



tion, shrivelled up at one end of the test. The insect is flat beneath, convex 

 above, of elongated oval shape, brown in colour. The two abdominal 

 lobes, which are yellowish, are conspicuous over the anal cleft (fig. 11). 

 The underside is smooth, but the upper is divided by several large corruga- 

 tions, and I think each corrugation corresponds to one of the primary 

 segments of the test. 



The mentum is, I think, bi- articulate, but I have not been able to make 

 this out with certainty. 



Antennse (fig. 14) of seven joints, of which the third is the longest, the 

 fourth, fifth and sixth, the shortest; a few hairs, especially on the last joint. 

 In some specimens I have seen the third joint as if divided into two ; but 

 this was probably only due to a folding of the integument. 



Feet (fig. 15) normal; the tibia is somewhat thin, and has one spine or 

 hair at its tip. Digitules, of which two are shown in fig. 16, normal ; 

 upper pair long knobbed hairs, lower pair very broad. 



The female in the second stage is also convex above, flat below, but is 

 less thick than the adult, and has not the corrugations. General form 

 elongated oval, with the anal cleft and lobes of Lecanid^, but the lobes are 

 not, as usual, smooth, but approach by irregularity the anal tubercles of the 

 Coccidse, and like them bear a few hairs. I think the anal ring has eight 

 hairs. Antennae of six joints. Feet normal, digitules as in adult. On 

 the skin are several scattered, circular, very minute, spinnerets ; the stig- 

 matic spines are long and conspicuous, and along the edge runs a row of 

 conical hairs or spines, which may, as in AcantJwcoccus, act also as spin- 

 nerets. These details are shown in fig. 17. 



Like the other Lecanio-diaspidse here, I. leptospermi is much subject to 

 attacks from parasitic Hymenoptera. 



Not uncommon throughout the Islands on the manuka, Leptospermum 

 scoparium. I have found the twigs of this tree covered with the little white 

 tests of this insect near Christchurch, Kaiapoi, Wellington and Auckand. 

 I have not seen it on any other plant. It does not* appear to attack the 

 leaves, but prefers the young twigs. 



I had some doubt, when describing in 1878 Inglisia patella, as to the 

 propriety of erecting a new genus to fit a single species. I. leptospermi has 

 come to remove the doubt : the nearest European genus seems to be Fair- 

 mairia, Signoret : but the 7-jointed antenna of Inglisia and the form of the 

 test remove it from that genus. 



3rd Genus, Lecanochiton, gen. nov. 



Adult female covered by a test formed partly of the pellicle of the second 

 stage, partly by a hard, apparently chitinous, secretion. Other characters 

 of Lecanidffi : apodous in adult stage. 



