False-head-defense
Guides
Arawacus
stripe-streaks, stripestreaks
Arawacus is a genus of gossamer-wing butterflies in the family Lycaenidae, commonly known as stripe-streaks. The genus contains approximately 17 described species distributed throughout the Neotropical realm, from Mexico south through Central America to Brazil, Peru, and Argentina. Members of this genus are notable for their distinctive false-head defensive morphology on the hindwings, which helps misdirect predator attacks away from vital body parts.
Theclinae
hairstreaks, elfins
Theclinae is a subfamily of Lycaenidae butterflies comprising hairstreaks, elfins, and related groups. Members are characterized by small to medium size, often with tail-like projections on the hindwings and intricate underside patterns. Many species exhibit myrmecophilous relationships with ants, and larvae possess a specialized dorsal gland (Newcomer's gland) that secretes sugary fluids to attract ant protectors. The group shows high diversity in tropical regions, particularly the Neotropics and Southeast Asia, with fewer migratory species compared to other butterfly groups.