8 
C. F. H. Jenkins. 
Se^•eral specievS of parasites have been experimented with over the past 
50 years but the three which have proved most successful are Scutellista cijanea 
Mot. MciapJiycus loundsburyi How. and Tomoc('ni californica How. 
The results of tlie recent trials with Mrtaphyciis helvolus Comp, must not 
be taken as conclusive as only a small colony was procured from the C.S.I.R. 
and satisfactory host material was not available in sufficient quantity to bleed 
a second generation. 
Table II indicates the various attempts at insect introduction which have 
been made in past years : — 
TABLE II. 
Parasite or Predator. 
Introduced 
Prom. 
Date of 
Intro- 
duction. 
Number 
Intro- 
duced. 
Number 
Liber- 
ated. 
Where 
Liberated. 
Intro- 
duced 
By. 
Subse- 
quent 
History. 
Red scutellista 
China 
1905 
3 
? 
? 
Compere 
Failed 
Do. do 
Timor 
1905 
3 
Metropolitan 
Area 
do. 
do. 
Scutellista cyatiea 
Brazil 
1904 
60 
? 
? 
do. 
do. 
Motsch 
Do. do. 
California .... 
1904 
19 
19 
Metropolitan 
Area 
do. 
do. 
Established 
Do. do. 
Capetown .... 
1902 
30 
30 
T. Hooper 
Failed 
Do. do. 
do. 
1903 
85 
85 
do. 
do. 
do. 
Do, do. 
do 
1902 
? 
11 
Perth and 
Coolup 
Compere 
9 
Do. do. 
('alifornia .... 
1903 
? 
90 
Various 
do. 
Established 
Metaphycus loundsburyi 
How. 
Capetown .... 
1902 
9 
? 
Metropolitan 
Area 
T. Hooper 
do. 
Microterys sp. 
do 
1902 
? 
? 
do. 
do. 
Failed 
Do.' 
do. 
1902 
? 
20 
do. 
Compere 
do. 
Tomocera californica 
How. 
N.S.W 
1902 
9 
45 
9 
do. 
Established 
Quaylea ivhittieri 
(Girault) = Hymen.' 
cyrtiis crau'i Ashm. 
do 
1902 
? 
11 
Metropolitan! 
Area. 
do. 
Failed 
(Essig., 1931 a) 
*Myiocnema comperei 
Ashm. 
Queensland... 
1902 
9 
938 
51 colonie.s, 
various 
do. 
Established 
Aristolochia sp 
Hong Kong.... 
1903 
? 
12 
Metropolitan 
Area 
do. 
Failed 
IViizobius ventralis 
Ericks 
Eastern Aus- 
tralia 
1902 
? 
9 
do. 
do. 
Established 
Metaphyeus Mvolus 
Comp. 
Canberra 
(C.S.I.R.) 
1943 
No lib- 
erations 
made 
? 
Jenkins 
Unnamed 
Eastern Aus- 
tralia 
1903 
9 
60 
Compere 
9 
Do 
South Africa 
1903 
? 
85 
do. 
9 
Do. 
Brazil 
1904 
9 
60 
• 
do. 
9 
Do 
California .... 
1904 
9 
19 
.... 
do. 
9 
Do 
Canton 
1903 
? 
10 
Metropolitan 
Area 
Compere 
9 
Do 
Hong Kong ... 
1903 
9 
12 
do. 
do. 
9 
Do 
Capetown .... 
1903 
9 
83 
Various 
do. 
? 
Do 
do 
1903 
9 
17 
Metropolitan 
do. 
9 
♦Now considered to be a possible secondary parasite (Essig., 1931 b). 
LITERATURE. 
Anon, 1903, In Seorch of Parasites,” Journ. Dept. Agric. It. Aust. VoL VII., p. 51. 
Anon, 1906, “ Saving California's Fruit Crops,” ibid. Vol. XIII., p. 333. 
Compere, G. 1902, ” Introduction of Parasites,” ibid. Vol. VI., p. 238. 
Compere, G. 1904, “ Black Scale Parasites,” ibid. Vol. X., p. 94. 
Despeissis, A. and Compere, G. 1903, Dept. Agric. IT. Aust., Bull 4, p. 91. 
Despeissis, 1904, “ Black Scale and Fruit Fly Parasites,” Journ. Dept. Agric. W. Aust. 
Vol. X., p. 172. 
Essig. E. O. 1931A, “ A History of Entomology,” (N.Y. MacMillan), p. 359. 
Essig, E, O. 1931B, ibid, p. 330. 
Harper, 1906, " Introduction of Parasites,” Journ. Dept. Agric. W. Aust. Vol. XIV., 
p. 178. 
