The Crowned Hairstreak (Evenus coronata) is a large, neotropical hairstreak butterfly that is found from southern Mexico up to Ecuador in a wide coastal swath. 
   Hairstreak butterfly identification starts out relatively easily, with the patterns on the underside of the wings serving as the basic identification clues.
   Most species are relatively small, the size of a penny or nickel when the wings are folded, so getting a large, accurate picture can be a difficult identification task.
   They have one or more thin tail like extensions on the hindwings. The male’s forelegs are reduced, but the female’s are fully developed.
   They are very rare and can also be found in a bluish color.
   Hairstreaks are divided into around a dozen different genera, with approximately two-thirds of the species being either Callophyrs, Satyrium or Strymon.
   Most of the one hundred or so hairstreak species live in the geographically limited range of southern coastal Mexico through Equador.