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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)

-Skippers (Family Hesperiidae)

-Dicot Skippers (Subfamily Eudaminae)

-Tribe Phocidini

-Genus Phocides

-Common Scarlet-Eye (Nascus phocus)


The Common Scarlet-Eye (Nascus phocus) is a species of skipper butterfly. As its name suggests, it features prominent deep red eyes. In certain lighting, these eyes may appear dark or black, but they are a rich scarlet hue upon closer inspection. This species is found in Mexico, Central America, and parts of South America, inhabiting tropical forests, edges, and clearings. Adults are fast, powerful fliers, often seen darting through shaded areas and perching briefly on leaves.

Diet

  • The caterpillars feed on woody plants, with documented host plants including Guarea, Paullinia, Serjania and Bignonia.

  • Adults visit flowers for nectar and may also take other plant-derived nutrients.

Range

  • Nascus phocus has a broad Neotropical distribution extending from eastern and western Mexico through Central America to southern Brazil, Paraguay and Argentina.

  • It occurs in Guerrero and is found in the Zihua area.

Habitat

  • The Common Scarlet-eye inhabits tropical and subtropical forest, woodland edges, clearings and secondary vegetation.

  • It is particularly associated with areas containing woody larval host plants and a mixture of shade and open vegetation.

  • Adults can be encountered along forest trails and edges, often resting on foliage or flying rapidly through openings.

Description

  • Nascus phocus is a medium-sized, robust skipper with a forewing length of approximately 27–31 mm, giving it a wingspan of roughly 55–62 mm.

  • The upper surface is predominantly dark brown, with a compact series of yellowish to translucent spots across the middle of the forewing.

  • The hindwing is generally olive-brown to olive-tan, with darker bands and a contrasting brown outer margin.

  • The underside is paler and more strongly patterned, with yellowish or cream markings on the hindwing.

  • There is considerable variation in the intensity of the olive and tan colouring, with individuals from different seasons and geographic regions sometimes appearing noticeably different.

Common Scarlet-Eye

Nascus phocus

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