
THALESSA, OR RHYSSA SP. 






of damage to the wood itself since it has to bore its way Ou’. 
from the larval gallery where it has matured, _ an 
Points in the life history requiring further observation, — 
1, The number of eggs laid in each larval gallery and tlie 
age of the Sivex larva in whose gallery they (if 
more than one) are laid. Are the eggs only laid 
in very young larval galleries, or are older larvee a 
é | attacked ? ? . t “ 
2, The length of time spent in the larval state. . 3 a 
3. The length of time spent in the pupal stage. i a 
4. Does more than one ichneumon grub attack any a 
ae ; one Sivex larva? a 


