Eumorpha
strenua adults are on the wing in May-June and probably in other
months.
Eumorpha strenua larvae probably feed upon grapes.
ECLOSION, SCENTING AND MATING:
Pupae wiggle to surface
just prior to eclosion. Females call at night, and males fly into the
wind to pick up and track the pheromone plume.
EGGS, LARVAE AND PUPAE:
Larval Food Plants
Listed below are primary food plant(s) and alternate food
plants. It is hoped that this alphabetical listing followed by the
common name of the foodplant will prove useful. The list is not
exhaustive. Experimenting with closely
related foodplants is worthwhile.