276 PROCEEDINGS OF THE SECOND ENTOMOLOGICAL MEETING 
Leaf-eating insects on mustards include :— 
Athalia proxima. 
Athalia leucostoma. 
Plu'elia maculipennis. 
Crocidolomia binotalis. 
Hellula undals. 
Flea Beetles. 
Athalia provima |Kntomological Memoirs, Vol. I, pp. 357-370,. 
tab. 20] occurs in the Plains of India north of a line from Bombay to 
Calcutta and also in the Hill Districts of Southern India. In Bihar it 
occurs only in the winter months but in Bombay it is found during the 
South-West Monsoon. The life-history and habits are fully described 
in the Memoir and the only additional facts are that the parasites bred 
from A. proxima have since been identified and described in the Fauna 
of India volume on Ichneumonide as Exacrodus populans [l. c., pp. 330- 
331, fig. 93]. A. proxima occurs regularly on mustards but does com- 
paratively little damage, so that no control measures have been required. 
Athalia leucostoma occurs in the Kohat Valley, in the North-West 
Frontier Province, where I obtained adults in May 1916 flying in a field. 
of mustard. 
Plutella maculipennis |“ South Indian Insects,” p. 464, fig. 340] 
occurs commonly on mustard, the caterpillar eating holes in the leaves. 
When on the leaves it is unimportant, but the caterpillars also bore the 
pods, when it may do damage. 
Crocidolomia binotalis {l. c., p. 437, fig. 313] occurs throughout India, 
Burma and Ceylon, usually as a minor pest when on the leaves, but 
occasionally serious, webbing the whole plant. The life-history was: 
shown in a coloured plate issued last year. We have specimens reared 
on mustard from Surat, Pusa and Lyallpur. The caterpillar also bores 
the pods, when it does serious damage. Control should include destruc- 
tion of webbed portions of first-attacked plants together with spraying 
with stomach-poison. It should be taken in hand early before the pods 
are formed. 
Hellula undalis [1. c., pp. 437-438, fig. 314] occurs throughout India, 
Burma and Ceylon as a minor pest of mustards, sometimes destructive 
to young leaves, webbing these over and killmg them back. Destruc- 
tion of first-attacked plants seems the only practical control measure. 
Flea Beetles occur on mustards and may be Phedon brassice but we 
seem to have no specimens definitely identified. Contro’ by catching 
im hand-nets or bag-nets when the state of the crop permits. 
