SCALE-INSECTS. 53 
“‘ variable.” The following table shows the numbers observed 
im specimens from different trees in New Zealand :— 
Uppermost | Upper Side | Lower Side 
Groups. Groups. Groups. 
Apple ugh et mie 17 17 14 
Plum a oe Ps 20 uty 17 
Lilac oe re a Le 19 16 
Ash ee he ioe 10 12 9 
Cotoneaster ne = ik 15 r 20 
A very minute white Acarid (mite) has been observed fre- 
quently under the puparia of this species, among the eggs. The 
eggs, in most cases so observed, were shrivelled and dead. Mr. A. 
Michael, in the paper above mentioned (“ Notes on Tyroglyphide’’) 
refers to an Acarus found in America in 1873, also in puparia of 
M. pomorum, by Mr. Riley, and expresses doubts whether or not 
it fed upon the insect; yet he says, “ A Tyroglyphus not ordi- 
narily predatory might regard a Coccus as suitable for gastro- 
nomic purposes.” 
20. Myritaspis pyrirormis, Maskell. 
IN-Ze Brans.,, Vol. Xf. 1878; p. 1945 Vol. XPVs 1888, 
p-:215; Vol. XVIL., 1884, p. 22. 
(Plate V., Fig. 6.) 
Female puparium light-brown, elongated, pyriform, flat ; 
length, averaging 7 in. (sometimes reaching $i.) ; breadth, 
averaging ;in. (reaching 7y;in.); texture, thm. The second 
pellicle is comparatively large. 
Male puparium smaller and narrower, brown, not carinated. 
Adult female yellowish-brown or greyish; elongated, seg- 
mented; on the segments are a few spiny hairs. Abdomen end- 
ing in several lobes, of which the two median are much the 
largest. Spinnercts in a continuous arch, containing sixty to 
seventy orifices. Many single spinnerets. Several scaly hairs 
between the lobes. 
Adult male orange-coloured, about z/5in. long. Antenne 
10-jointed. Digitules, long fine hairs. Sheath of the penis long. 
Habitat—On Dysoxylon spectabile and Atherosperma Nove 
Zelandie, Wellington ; on Coprosma, Riccarton Bush, Canter- 
bury. 
