1912] Pseudococcus of South Africa 183 
(a) On Phytolacca dioica Piper, at Rosebank Station. July 
17, 1911. Fruit clusters nearly all fallen. These were heavily 
infested with Mealy Bug, and on falling to the ground many of 
the adult females made their way back to the trunks of the 
trees. At this date many females are to be seen walking about 
the bark, while the trunks are quite noticeable from the number 
of ovisacs spun in the cracks of the bark. In the four trees 
there must be some thousands of ovisacs within five feet of the 
ground, while in one case they are numerous to a height of 
Dor tOva0rreet. 
(b) On Albizzia lophantha. In winter this species is com- 
monly clustered on the crowns of young seedling plants of this 
species immediately below the surface of the ground. Others 
are found in cracks in the bark of larger trees and later in the 
season when the leaves and flowers appear the insects are 
scattered over the whole tree. Large numbers of ovisacs have 
been found matted together in the seed pods. 
(c) On Stored Pumpkins at Stellenbosch. Dec. 15, 1910. 
On this date I collected full-grown females (8-4 mm.) from 
pumpkins of the Turk’s Head variety which had been stored on 
a roof (galvanized iron) for some months. Numerous completed 
visacs were present. All specimens were below the pumpkins 
and had the appearance of having remained there for a long 
time. The pumpkins were exceedingly hard and dry and were 
on a hot, dry, exposed roof, but the insects were quite healthy 
looking and lively. 
(On Vines at Constantia. Jan. 3; 1911, This material 
was collected by Mr. C. P. Lounsbury who states that at this 
date females of all stages were present in the vines but very 
few had entered the bunches themselves, which were small at 
that time. 
Pseudococcus wachendorfiz n. sp. 
Ovisac: No definite ovisac was found, although where the adult 92 
was situated a definite white granular patch of waxy secretion was 
noticed on the plant. 
Adult 2 : Largest specimen found measured while alive 4.1 mm. long 
and 1.9 mm. broad. The body was finely covered with granular secre- 
tion, white, but segmentation was still conspicuous. Lateral appendages 
of wax were absent, but a short caudal tuft was generally noticeable. 
Antenne: Plate XV, Fig. 2. 
Segments: Measurements in uw. 
