214 Transactions.—Zoology. 
have almost all seven-jointed antenna in the adult. The second joint, fig. 
16c, is very short, the third the longest, the fourth, fifth and sixth about 
equal in length; the last three have some hairs. The feet, fig. 16e, have the 
femur thick and strong, tibie rather longer and thick, tarsus still longer 
and thin; the upper digitules very long, the lower pair narrow, about twice 
as long as the claw. The edge of the body is surrounded with a row of 
small spines, of which each alternate spine is pointed (fig. 16d), the remainder 
club-shaped. The abdominal lobes of the Lecanide are present, but the cleft 
is different from that of any other species. The abdomen, as shown in figs. 
16 and 16d, ends in a pair of narrow curved protuberances, nearly meeting 
at their ends, but separated above by a broad open space in which the two 
abdominallobes are seen protruding. The row of alternate spines does not 
extend round this space. The anal ring has eight long hairs. 
The edge of the body shows a double line, like a ribbon, in which are set 
the alternate spines. Inside thisis a row of spinnerets with, on the inner 
side, a line of short curves. . The edge itself is crenated. i 
The female in the stage immediately preceding that which I have 
described, and before covering itself with the test, resembles somewhat the 
female of Ctenochiton, as given in plate VII., fig. 18b. The outline of the body 
is much the same, with the four spiracular spines, and the alternate pointed 
and clubbed spines are absent. But, on close examination, it cannot be 
mistaken for Ctenochiton, as the antennæ are shorter and thicker, and the 
abdominal cleft already shows signs of the peculiar shape assumed in the 
later stage. Moreover, a commencement of the test may usually be detected, 
and this is quite different from that of the Ctenochiton. 
I have not yet found the male of this interesting species which, in out- 
ward appearance, has some similarity to Fairmairia bipartita, Bignoret, but 
is certainly not the same. 
I ovext now to proceed to the description of the third great group of Scale 
Insects, the Coccide proper. But I must first give an account of a genus 
which perhaps should have come into my last paper, but which I had not, 
at the last meeting of the Institute, made out sufficiently for description. 
This genus is somewhat anomalous. It is clearly not belonging to 
Lecanium, nor does it come under the subdivision Lecanio-diaspide, as the 
abdominal lobes are wanting, or rather different. At the same time it has 
so much likeness to the Lecanide that I cannot connect it with any other 
group. I imagine, then, that the genus is new, and typical, in fact, of a 
new subdivision, to which I give the name of 
ÁASTEROCHITON, gen. nov. 
"The genus is characterised by enclosure in a test which is so intimately 
os : masi to the insect that it cannot be removed without injury. The 
