Jalmenus ictinus

4 Stencilled Hairstreak at Mount Ainslie

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Jalmenus ictinus owenh 29 Dec 2023
Jalmenus ictinus g4vpmuk 29 Dec 2023

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5 comments

   29 Dec 2023
Confirming species only - interested to know why you suggest female. Associated plant looks like St. John's Wort.
   29 Dec 2023
I’ll take your word for it re the flower. When it opened its wings there were blue patches on the uppersides which I believe indicates a female.
   29 Dec 2023
Thanks g4vpmuk, you are correct, females of this species can usually show irridescent blue central areas on the upperside but colouration is variable. Due to this variation best we refer to Michael Braby who notes 'In the male, the central area is usually bluish-green, but in some specimens is bright blue or green; in the female it varies from green, through bluish-green, blue, purplish-blue to purple' (Butterflies of Australia, Vol 2. CSIRO Publishing 2000). As such, suggest that unless we can observe specific behaviour difficult to determine sex in the field. Thank you for your record.
   29 Dec 2023
No problem. The coloured patches were actually a bluish-purple.
   29 Dec 2023
Glad you were able to see your 30th butterfly species while in Australia!

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Location information

Sighting information

  • 1 Abundance
  • 29 Dec 2023 03:20 PM Recorded on
  • g4vpmuk Recorded by
  • St. John’s Wort Associated plant
  • 25mm to 50mm Animal size
  • Female Gender
  • Alive / healthy Animal health

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