298 Transactions.— Zoology. 
known and described species of the Monophlebide, and must be therefore 
new. 
5. Enrococcus, Targioni-Tozzetti. 
I described this genus last year, having then one species of it. Since 
then I have found another, to which I give the name of 
Eriococcus hoherie, sp. nov. 
Plate VII., figs. 14-90. : 
The sac is, as usual, white and cottony, but for a great part of the year 
is covered with the black fungus so commonly accompanying Coccide, so 
that it looks only like a small gall or excrescence on the bark. About mid- 
summer, individuals may be found which are completing or have just com- 
pleted their ovisac, which then shows white in the crevices of the bark. 
Many such sacs are usually clustered together. 
The eggs are very minute, oval, red. 
The young insect (fig. 14) is about zi; inch long, red in colour, corrugated, 
tapering from the cephalic to the abdominal extremity, where it ends in two 
anal tubercles, each bearing a long seta and some hairs. Antenne (fig. 15) 
of six joints, all nearly equal, with a few hairs, mostly on the last joint. 
Foot (fig. 16) with tarsus a little longer than the tibia; digitules all fine 
hairs, the upper pair rather long, the lower pair about equalling the claw. 
The adult female (fig. 17) is red in colour, about sl; inch in length, gene- 
rally resembling in shape the young insect, and ending in anal tubercles 
with sete. Antenna (fig. 18) of six joints, somewhat shorter than in the 
young. Foot (fig. 19) apparently atrophied; the tibia is very short, and the 
femur has a swollen appearance ; the digitules are short fine hairs. The 
anal tubercles (fig. 20) seem at first sight only two; but after maceration in 
potash are found to be four, of which two bear long sete. All have spiny 
hairs, and between them is the anal ring with, I think, eight hairs. Eyes 
very small, black. 
There are some scattered minute hairs on the body, and a number of 
very small round spinnerets. On the last corrugations, just above the anal 
tubercles, these spinnerets increase greatly in number and size, and are 
intermixed with spiny hairs (fig. 20). 
This insect, from the bark of Hoheria, on the hills above Lyttelton, is, I 
think, new. The genus Eriococcus is not much removed from Acanthococcus, 
Signoret; and the species of both are somewhat confused. Last year I 
described, under the names of A. multispinus and E. araucarie, insects 
which seemed to me to differ from European species; and so, now, E, 
hoherie differs, I believe, from E. thymi, Signoret; but it requires some 
close investigation to distinguish between them; still, the European species 
has broad digitules, and a small tubercle at the base of the antenna, which 
I do not find in my specimens from Lyttelton. 
