384 Mr. E. Ernest Green’s 
scattered singly over the exposed surface of the moss- 
covered bark which had been provided as a shelter for the 
insect, adhering shghtly to their support. Towards the 
end of the egg-laying period a few were deposited in 
irregular clusters and unattached to the moss. The 
parent remained constantly near her eggs, visiting each 
one in turn, and mouthing them in a peculiar manner as 
if to keep them clean. 
The egg is regularly elliptical; pale pinkish yellow ; 
shining ; long, 0°30 mm.; broad, 0°50 mm. 
In spite of the attentions of the parent the eggs 
gradually shrivelled and dried up, and were eventually 
devoured. The female parent lived on till January 18, 
1898, feeding upon smal] insects and drinking water 
greedily. This specimen was captured early in October 
and was then in the penultimate stage. It lived in 
captivity for 34 months. 
The following notes upon the development of Dyscritina 
apply to both species of the insect. : 
In ecdysis the skin splits along the median dorsal line 
of the thorax, and is shed in one complete piece, including 
the covering of the delicate caudal appendages. I 
have been unable to satisfy myself as to the total 
number of ecdyses undergone, the examples under 
observation being from a quarter to half grown at the 
time of capture. I have, however, observed four successive 
moults, the last revealing the adult insect. Each stage 
occupies about ten days. 
With each moult, instead of a diminution in the 
number of joints of the caudal appendages there is a 
distinct progressive increase in the length of the cerci 
until shortly before the final ecdysis, when the appendages 
are abruptly curtailed, leaving nothing but the long basal 
joint on each side (Fig. 1). The number of joints is 
variable and seldom exactly the same in both cerci of any 
individual. The following series of measurements will 
demonstrate this development of the caudal appendages. 
DYSCRITINA LONGISETOSA. 
No. 1. Body 2°5 mm. long. Ceret of same length with 14 
joints. Antenne with seven joints. 
No. 2. Body 3 mm. long. Cerci 6 mm., with 27 joints, 
many with incomplete divisions where fresh 
joints are forming. Antenne with 10 joints. 
