They do not adhere to the roots; they have not grown; their appearance has not altered.

Such as they were at the beginning of the experiment, such they are now, but rather less active.

Does not this lack of growth during November, the mildest month of winter, prove that no nourishment is taken until the spring?
The young Sitares, which are also very minute, directly they issue from the egg at the entrance of the tubes of the Anthrophorus, remain motionless, assembled in a heap, and pass the whole of the winter in a state of complete abstinence.

The young Cigales apparently behave in a very similar fashion.

Once they have burrowed to such depths as will safeguard them from the frosts they sleep in solitude in their winter quarters, and await the return of spring before piercing some neighbouring root and taking their first repast.
I have tried unsuccessfully to confirm these deductions by observation.
In April I unpotted my plant of thyme for the third time.