Table 1.

Microbehaviors during Drosophila oviposition.

Microbehavior	Description
Positioning	A change in position of the fly body in the horizontal plane (rotation, translation)
Protarsal contact	Protarsae are directly touching the egg-laying substrate
Mesotarsal and/or metatarsal contact	Mesotarsae and/or mesotarsae are directly touching the egg-laying substrate
Abdominal drumming	Upward and downward abdomen movements
Labellum contact	Labellum is directly touching the egg-laying substrate
Feeding	Combination of direct contact with substrate and peristaltic motion of the proboscis indicating food/liquid uptake
Ovipositor contact	Sequence of direct ovipositor contacts with the egg-laying substrate, accompanied by the downward bending of the abdomen
Egg pushing	Pushing an egg through the oviduct, causing it to contract and expand in bouts
Egg expulsion	An egg detaching from the ovipositor
Grooming	Cleaning the head with the first leg pair or cleaning the abdomen with the third leg pair
Abdominal convulsion	Compression and relaxing of the abdomen without abdomen motion relative to the rest of the body