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Butterflies of Zihuatanejo

SUPERFAMILY PAPILIONOIDEA

-Animals (Kingdom Animalia)

-Arthropods (Phylum Arthropoda)

-Hexapods (Subphylum Hexapoda)

-Insects (Class Insecta)

-Winged and Once-winged Insects (Subclass Pterygota)

-Butterflies and Moths (Order Lepidoptera)

-Butterflies (Superfamily Papilionoidea)

-Brush-footed Butterflies (Family Nymphalidae)

-Fritillaries and Longwings (Subfamily Heliconiinae)

-Longwings (Tribe Heliconiini)​

-Genus Dione

-Juno Sliverspot (Dione Juno)

-Dione juno ssp. huascuma


Dione juno (Juno Heliconian) is a species of butterflies in the family brush-footed butterflies. They visit flowers of lantana, passionflower, and Baccharis latifolia. Unlike other Heliconian species, the Silver-Spotted Flambeau does not feed on pollen. The adults fly quickly and erratically. They prefer open, sunny areas, and may be found up to 2500 m in altitude. Mature caterpillars are black and covered in orange spots and black spines.

Diet

  • Caterpillars feed exclusively on passionvines (Passiflora spp.).

  • The larvae are notably gregarious, often feeding together in groups on the same vine.

  • Adults feed primarily on nectar from a variety of flowering plants.

Range

  • The Juno Silverspot ranges from Mexico through Central America and into much of tropical South America, with additional populations in parts of the Caribbean.

  • It occurs in Guerrero and can be encountered in the Zihua area where suitable passionvines and flowering vegetation are present.

Habitat

  • It inhabits forest edges, clearings, secondary woodland, stream margins, scrub, gardens, and other sunny areas where passionvines grow.

  • It occurs from low elevations into the lower montane zone, generally favoring warm environments.

  • In the Zihua region, it is most likely around sunny forest margins and disturbed vegetation supporting Passiflora.

Description

  • A medium-to-large Heliconiinae with a wingspan of approximately 50–85 mm.

  • The upper surface is predominantly deep orange, with broad dark brown to black margins and conspicuous black markings extending along the forewing veins.

  • The forewings are relatively long and broad, giving the butterfly the characteristic longwing appearance.

  • The underside is strikingly different, with the hindwings pale brown to tan and covered with numerous silvery-white spots. The pale spots are particularly conspicuous when the butterfly rests with its wings closed.

  • The combination of orange upper wings, strongly contrasting black markings, and numerous pale silvery spots beneath makes it relatively distinctive.

  • It can be confused with other orange Heliconiinae, but its broad dark forewing markings and heavily spotted underside are useful identification features.

Juno Sliverspot - Closed

Dione juno

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