286 
Psyche 
[December 
were also a wood-louse, a cockroach and specimens of the 
curious scale-insect, Mixorthezia sp. 1 
This is one of the few known cases of Ponerines attending 
Homoptera. 
A number of the Mnemosyne nymphs were preserved in 
alcohol for description later, while live ones were provided 
with decayed wood, rootlets and nest-material, but no ants ; 
and an attempt was made to rear them. This was successful 
only with some of the older nymphs; but the exigencies of 
travelling made the test an unfair one. From these nymphs 
the first adult — a female — emerged on the 14th April. A 
second female appeared on the 18th and a third in the early 
morning of the 19th. The only male came out on the 20th. 
One female survived in captivity until the 25th and was 
then preserved for the journey north. 
Professor S. C. Bruner, since my return to England, sent 
me nymphs of apparently the same species, attended by 
the same ant, at the roots of sugar-cane, — a very different 
habitat from that in which we found them. 
Description of the nymphs: 
Neither the eggs nor the younger nymphs were found, 
nor could adults be induced to lay in captivity. 
In the preserved material on which the descriptions are 
based, it was found that in the same instar, some had 
longer abdomens than others, apparently according to the 
time since they had moulted. The total lengths given below 
have been measured all on specimens with long abdomens, 
— thus near the end of stadium concerned. 
Antepenultimate nymph: (Figure 1, outline only). 
Length, 4.3 mm. Colour white, the more strongly “chitin- 
ised” dorsal sclerites of thorax and of abdomen faintly 
iThis Coccid was taken in or near the nests of the following three other 
species of ants (kindly determined by Dr. Wheeler), Brachymyrmex heeri 
obscurior Forel, Euponera ( Trachymesopus ) stigma F. and Camponotus santosi 
Forel ; and in that of Termite, Anoplotermes sp. (kindly determined by Dr. 
T. E. Snyder). 
No ants were seen attending these Coccids nor was there any indication 
that the association was anything but accidental. 
