More than 2200 species of the wild flora and fauna photographed in Zihuatanejo, Guerrero, Mexico and the surrounding area.
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Butterflies of Zihuatanejo
SUPERFAMILY PAPILIONOIDEA
-Arthropods (Phylum Arthropoda)
-Hexapods (Subphylum Hexapoda)
-Winged and Once-winged Insects (Subclass Pterygota)
-Butterflies and Moths (Order Lepidoptera)
-Butterflies (Superfamily Papilionoidea)
-Brush-footed Butterflies (Family Nymphalidae)
-Satyrs, Morphos, and Allies (Subfamily Satyrinae)
-Owl-Butterflies and Allies (Tribe Brassolini)
-Split-banded Owl-Butterfly (Opsiphanes cassina)
The Split-banded Owl-Butterfly (Opsiphanes cassina), also known as the Split-banded Owlet or "mini owl," is a large Neotropical butterfly in the family Nymphalidae, with a wingspan of approximately 70–72 mm. Its upperside is primarily dark chocolate brown, featuring distinctive yellow-orange bands that cross the forewings and run along the edges of the hindwings. The underside is intricately patterned in beige and brown to resemble tree bark, punctuated by large, prominent eyespots that mimic an owl’s face to deter predators. Found from Mexico to the Amazon basin, this species is frequently associated with tropical rainforests and disturbed areas where palm trees are abundant.
Diet
Caterpillars feed primarily on palms (Arecaceae).
The larvae consume the leaflets and can cause substantial defoliation where populations become concentrated.
Eggs are generally laid singly on the underside of palm leaflets.
Adults feed on fermenting fruit, tree sap, and other sugary liquids rather than relying primarily on flower nectar.
Range
The Opsiphanes cassina complex extends from Mexico through Central America and into northern and western South America.
Guerrero is within the documented Mexican range, and it occurs in the Zihua area.
Habitat
Found in tropical and subtropical forest, forest edges, secondary growth, plantations, gardens, and other habitats containing palms.
It occurs from sea level to approximately 1,400 metres.
In the Zihua area it is most likely in lowland tropical vegetation, particularly where native or cultivated palms are abundant.
Adults are often encountered around palms and may fly rapidly through shaded vegetation before settling beneath leaves.
Description
A large, robust member of the brush-footed butterfly family, with a wingspan generally around 70–85 mm.
The upper wings are predominantly dark brown, crossed by prominent orange to yellow-orange bands. The arrangement of these bands gives the species its common name.
The underside is cryptically mottled brown and tan, with several conspicuous eyespots that resemble markings on a dead leaf.
The forewings are broad and rounded, while the hindwings are rounded and somewhat scalloped.
Caterpillars are bright green, with longitudinal markings and distinctive paired, forked projections at the rear of the body.
Adults are often crepuscular or active in shaded conditions and can be difficult to see when resting beneath palm foliage.
Split-banded Owl
Opsiphanes cassina

