DISTRIBUTION:

Isognathus scyron (Wing span: 72-73mm, females slightly larger than males), flies in Surinam, the specimen type locality, and in French Guiana, Cuba, Costa Rica, Guatemala (JM).

FLIGHT TIMES:

There are probably several flights throughout the year. Moths are on the wing continuously in Costa Rica.

ECLOSION:

Moths emerge from pupae in thin-walled cocoons under leaf litter within 8-24 days of pupation.

SCENTING AND MATING:

Females call in the males with a pheromone released from a gland at the tip of the abdomen. Adults nectar at flowers, including petunia.

Isognathus scyron, female, Costa Rica, courtesy of Dan Janzen.

EGGS, LARVAE, PUPAE:

Females probably lay eggs on leaves of Apocynacea.

Larvae have long tails; colouration suggests they are unpalatable to birds.

The pupae are also quite colourful, and, I suspect, are very lively. Moths generaly emerge witin 8-24 days of pupation.

Isognathus scryon St. Laurent du Maroni, French Guiana,
courtesy of Antoine Guyonnet, id by Jean Haxiare.

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