The South Jvsfralian Naturalist. 
39 
White Stringybark {E. obliqua) 
In the previous nun'iber of this Journal, p. 12, under the 
heading of ‘^Distribution’’ it says “Its range extends beyond 
Bridgewater in an easterly direction and beyond Mt. Barker to 
the south-east but dies out before the eastern slopes of the high- 
lands are reached, not occurring beyond Nairned’ We now have 
more complete knowledge of its range in this district. Between 
Bridgewater and Ambleside the higher quartzite hills give place 
to lower rounded slaty hills as the River Onkaparinga is ap- 
proached. Looking back from near the river a distinct change 
in the country is observed. The higher quartzite hills are rough 
and steep and densely tree and bush clad while the lower hills 
falling away to the valley of the river are smooth rounded hills 
with trees in open formation with few shrubs and undergrowth. 
The stringybark does not leave the higher quartzite lulls and 
therefore does not extend to Ambleside or even the River Onka- 
paringa. 
L.H.L 
THE BLACK CICADA OR RED-EYE. 
(Fsaltoda moerens Germ.) 
By Arthur M. Lea, E.E.S. 
(Communication from the South Australian Museum) 
One of the most familiar insects In South Australia is a large 
black cicada, commonly known as the black locust or red eye; 
In the mature state it is only seen in the summer, and, in fact, 
practically all members of the family are only to be taken in the 
summer in the southern half of Australia. In Queensland, how- 
ever, although more common In the rainy season than during 
other periods, specimens of the family may be taken throughout tlie 
year. Altogether we have about one hundred and fift\’ species, 
of which the majority occur in Queensland; from South Australia 
less than twenty species arc known. 
d'o most people in Australia, America, and otlicr Puiglish 
speaking countries, these Insects are known as locusts, and al- 
though naturalists persist in writing of them as cicadas, and point 
out that true locusts are grasshoppers, it is unreasonable to expect 
that children and bushmen will think of them other than as locusts, 
but some of the common species have special names, suclt as 
green-locust, yellow-Aionday, double-drummer, bladder-locust, 
floury-baker, tick-tick, kc. 
