Biological Control in Western Australia. 
15 
TABLE'VT. 
Parasite or Predator. 
Introduced 
From. 
Date of 
Intro- 
duction. 
Number 
Intro- 
duced. 
Number 
Liber- 
ated. 
Where 
Liberated. 
Intro- 
duced 
By. 
Subse- 
quent 
History. 
Hymenopteron 
(Hymenosbosmina 
rapi (Cara.))? 
Eastern Aus- 
tralia 
1002 
110 
Metropolitan 
Area 
Compere 
Established 
Do. do. 
do. do. 
1902 
12 
do. 
do. 
? Larval parasites .... 
Malaga 
1903 
24 
do. 
do. 
? Hymenopteron .... 
Colombo 
1907 
35 
do. 
do. 
Do. 
India 
1907 
100 
do. 
do. 
Do. 
China 
1909 
110 
do. 
do. 
It is now considered that the hymenopteron. established in 1902 is referable 
to Hymenoshosmina rajn (Cameron). Although this parasite is often very 
active it does not entirely remove the necessity for artificial control measures. 
Additional parasites reared from moth larvae in this state include an 
undetermined pteromalid and a chalcid believed to be Chalcis victoriae (Girault). 
literature. 
Compere, G. 1902, Introduction of Parasites,” Jowrn. Dept. Agric. IF. d?isL Vol. IV.. 
VI., p. 238. 
Despeissis, A. 1906, “ Acting Director’s Report,” ibid. Vol. XIV., p. 327. 
Hardy, J. E. 1938, “ Plutella maculipennis Curt., Its Xatural and Biological Control 
in England ” Bull. Ent. Res. Vol. 29, p. 343. 
Lea, A. M. 1897, Jonrn. Bur. Agric. IF. Aust. Vol. IV., p. 1419. 
Xewman, L. J. 1907, “ Report of Assist. Entomologist,” down. Dept. Agric. W. Aust. 
Vol. XV, p. 916. 
F. PYRALIDAE. 
Hellula undalis Fr. (Turnip Moth) 
This moth, like the cabbage moth, was a very early introduction into the 
State as it was well established by 1897 (Lea 1897). 
An unidentified species of braconid was introduced from India by Compere 
in 1907, but it failed to become established. 
LITERATURE. 
Lea, A. M. 1897, Journ. Bur. Agric. IF. Aust. Vol. IV., p. 1419. 
F. GELECHIDAE, 
Gnorimoschema operculella (Zell.) (Potato Moth) 
This world-wide pest first figures in local literature in 1895 (Lea 1895). 
It is a major pe.st both of growing crops and stored tubers. One attempt 
only at biological control has been made in this State, the wasp Bracon gelechiae 
Ashm. having been obtained from the C.S.I.R. in March, 1944. Approximately 
300 wasps were liberated on a potato crop at Harvey and no further work has 
yet been possible on this problem. 
LITERATURE. 
Lea, A. M. 1895, Journ. Bur. Agric. IF. Aust. Vol. II., p. 533. 
