A lettuce leaf can be the home of insects and clams - and, probably, one of them already was to stop more in the distracted stomach. All the plants are citizens the presence of insects, but this does not want to say that you must stop to eat lettuce or another vegetable.
Inhabitants of the lettuce
Animal-person from de state of espirito santo
The occurrence of insects in the lettuce leaf can be a pointer of that the agriculturist did not play very insecticidal in the plant.