Mr. Fletcher. 
Mr. Ghosh. 
Mc. Fletcher. 
Mr. Sen. 
Mr.Ghosh. 
~1 
Ww 
PROCEEDINGS OF THE SECOND ENTOMOLOGICAL MEETING 
Duarncua (Sesbania aculeata). 
On the leaves of dhaincha we find :— 
Catopsilia pyranthe. 
Terias hecabe. 
Terias silhetana. 
Lizera otis. 
Epacromia tamulus. 
Myllocerus 11-pustulatus. 
Catopsilia pyranthe (South Indian Insects,” p. 413, fig. 286] and 
probably other species of Catopsilia sometimes occur on dhaincha leaves 
in some numbers but rarely as pests. 
Terias hecabe and T. silhetana both occur commonly and sometimes 
do considerable damage. These two species of Terias are very close to 
one another, but the caterpillars may be distinguished fairly easily, as in 
hecabe the caterpillar has a green head and is solitary, whereas in silhetana 
the caterpillars have black heads and are gregarious. In silhetana 
also the blackish pup are gregarious and one may find forty or fifty all 
attached to one twig or stem. 7. hecabe is figured in ‘‘ South Indian 
Insects ” [p. 414, fig. 287] and we have since issued a coloured plate 
showing its lifehistory. As regards control, the caterpillars may be 
checked by spraying with a stomach poison and in the case of silhetana 
they may be collected by hand. 
Zizera otis has occurred at Pusa in some numbers on dhaincha grown 
in experimental plots but does not seem to be a pest on a large scale. 
In an experimental plot of dhaincha grown by the Imperial Agricul- 
tural Bacteriologist, when the plants were 1} to 2 feet high, the top 
leaves were attacked by Terias and also by many caterpillars of Zizera 
otis. They were hand-picked. 
Hpacromia tamulus [ South Indian Insects”, p. 525, fig. 417] has 
been found in South India on dhaincha. I do not think there is any- 
tning to add to the account already given. 
Myllocerus 11-pustulatus occurs on the leaves in most districts but is 
of little importance as a pest. 
Cantharis hirticornis was noticed in Bengal feeding on dhaincha 
leaves, when the plants were five to six feet high. 
A black species of Thrips was bad at Pusa in July 1916 on an experi- 
mental plot of dhaincha grown by the Imperial Agricultural Bacteriologist 
—the same plot as that referred to before as attacked by Zizera otis. 
The attack was checked successfully by spraying with resin compound, 
of which one application was sufficient. 
