64. TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
the foot of the rocky cliffs, near the Marine Biological Station. 
This apparently rare species has hitherto been recorded only 
from Budleigh, Salterton and Camberley. 
Pseudococcus (Ripersia) radicum (Newst.). 
Three females. One example had produced her full com- 
plement of eggs, the others were young adults. On grass near 
the Marine Biological Station. 
Ripersia (Ripersiella) halophila (Hardy). 
This root-feeding species was extremely abundant both at 
Port Eri and near the Calf Sound. It occurred most freely 
on roots of various grasses in rock fissures; but was common 
also on Statice armeria, Plantago spp. and Silene sp. 
Eriopeltis festuce (Fonsc.). 
Abundant in the immediate neighbourhood of Port Erin. 
Small isolated plants of Festuca sp. were sometimes quite 
thickly studded with the white ovisacs; the male puparia 
were also not uncommon. 
The examples found in exposed situations immediately 
above the cliffs were remarkable for their small size and the 
closely felted ovisacs. On the other hand those which were 
found in the sheltered places, between or beneath loose frag- 
ments of rock, at the foot of the cliffs near the Marine Biological 
Station, were exceptionally large and the ovisacs rough and 
decidedly woolly in appearance. The following measurements 
‘of the females and their ovisacs are noteworthy :— 
Length of females from exposed situations, 1-9 to 2°8 mm. ; 
length of ovisacs, 3°5 to 6 mm. 
Length of females from sheltered situations, 4°3 to 4°6 mm. ; 
length of ovisacs, exclusive of the outstanding filaments, 5°6 
to 9 mm.; inclusive of the outstanding filaments the larger 
specimens ngasrteee as much as 11°5 mm. 
Ovipositing was still in progress, and very few fomale 
had deserted their ovisacs. | 
