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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)

-Spread-wing Skippers (Subfamily Pyrginae)

-Duskywings and Allies (Tribe Erynnini)

-Genus Echelatus

-Common Anastrus (Echelatus sempiternus)

-Common Anastrus (Echelatus sempiternus ssp. sempiternus)


Echelatus sempiternus (formerly placed in Anastrus), commonly known as the Common Anastrus, is a skipper butterfly in the family Hesperiidae. This species is found in Mexico and Central America, where it inhabits tropical forests, edges, and shaded clearings. Adults are often observed perching quietly on leaves or tree trunks, making short, rapid flights before returning to the same spot. The caterpillars feed on leguminous plants (Fabaceae) and construct leaf shelters using silk.

Diet

  • Caterpillars feed on a variety of woody plants.

  • Adults are likely to obtain nectar and other nutrients from a variety of sources, although detailed information on adult feeding is limited.

Range

  • The Common Anastrus has a broad Neotropical distribution from eastern and western Mexico through Central America to Venezuela and Ecuador, with related subspecies extending farther south into South America.

  • It occurs in Guerrero and is within its expected range around the Zihua area.

Habitat

  • It occurs in tropical and subtropical woodland, forest edges, clearings, and secondary vegetation, including relatively disturbed environments.

  • Its use of numerous woody host plants allows it to occupy a variety of forest and scrub habitats.

  • Around Zihua, it would be most likely along wooded edges, dry tropical forest, scrub, and areas with a mixture of mature trees and open vegetation.

Description

  • A medium-sized spread-wing skipper with a wingspan of approximately 35–45 mm.

  • The wings are predominantly dark brown, with subtle pale markings and a somewhat mottled appearance.

  • The forewings are elongated and rounded, while the hindwings have a somewhat irregular, scalloped margin.

  • The underside is generally paler and more mottled than the upper surface, providing effective camouflage against bark, dried leaves, and shaded vegetation.

Common Anastrus

Echelatus sempiternus

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