Caligo memnon

Giant Owl

Basic Information

General information

Family: “Nymphalidae”
Sub Family: “Morphinae”
Estimated Lifespan 14 Days

Garden Specific Information

Estimated Number In Flight: 21
Total Number of Pupae Received: 4537
First Flown On: 11/18/02
Last Flown On: 05/19/23

Species Range:

  • “NorthAmerica” “SouthAmerica”

Host plants:

  • Heliconia
  • Musa

Food Source

The adults feed on the juice of fermenting fruits. Bananas, pineapple, and mangoes are some of their favorites.

Etymology Of Name

The Latin name may possibly refer to their active periods. Caligo means darkness.


This butterfly frequently rests near banana crops or other agricultural areas. It is common in lowland forests, but cannot survive in areas with lots of rainfall.

Life history

Adults and caterpillars are crepuscular, active at dawn and dusk. Females lay eggs in groups on leaves of hostplants. The caterpillars feed gregariously (in groups) on the hostplants until pupation.


In their range there are multiple generations making it possible to find adults year round.

Fun Facts

Caligo females may have to mate more than once to fertilize all of their eggs.