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Phengaris arion
Love was in the air for this pair of Large blues (Phengaris arion), a butterfly in the Lycaenidae family which is listed as Near Threatened on the IUCN list, and which became extinct in the UK in 1979. It has now been successfully reintroduced there. First appearance for this species on Project Noah.
Alpine meadow, alt. 1400 m.
This species has an elaborate lifecycle. The larva is parasitic and feeds on the grubs of a red ant, Myrmica sabuleti, on whom its existence depends. From Wikipedia: "Large Blue caterpillars feed on wild thyme or marjoram flowers for the first few days of development. Once well fed, the caterpillar secretes sweet fluids to attract red ants of the species Myrmica sabuleti. The ants then take the caterpillar back to their nest and proceed to feed from these secretions. The caterpillar then hibernates inside the ants' tunnels. On emerging from hibernation, the caterpillar begins to eat the red ants' eggs and larvae, which it does for up to three weeks. It then suspends itself by its legs from the roof of the nest and pupates. The caterpillar spends a further three weeks transforming into the Large Blue butterfly adult. After its change from caterpillar to butterfly, the insect emerges from its chrysalis and leaves the ant nest to find a mate. Usually, red ants will escort the newly emerged butterfly to the surface, taking it to a low plant or shrub nearby. The red ants will encircle the butterfly and ward off any predators that attempt to attack the butterfly as its wings unfold and harden. When the butterfly is ready to fly, the ants will retreat back into their nest". Identification: a distinctive feature of this species is two distinct rows of underside submarginal spots.
30 Comments (1–25)
Thanks a lot Sergio. One more reason for you to come back in the summer :-)
Wonderful series and info, Daniele.
Thanks Rustic 41! Glad you found the info interesting PurpleScarf!
A beautiful series of images!
Beautiful spotting ! Thank you for the info !
Akshi, Adi, arlanda, thanks!
awesome spotting!
Very adorable spotting :)
Very good spotting. Congratulations, Daniele!
Thank you all for your last round of comments! For info, the female is the largest one, also showing a slightly darker border.
Me too!!
wonderful !
thanks daniele... One day i might take you up on that!
Wonderful series, Daniele. Congratulations on being the first Noah member to post a spotting.
thanks Daniel. This large blue has an interesting relationship with Ants!! :)
Talk about being escorted by ants at birth!
Thanks for your comments Jemma! Nice catches on the pigmy :-)
I found this pygmy ,yesterday.ignore the quality.
http://www.projectnoah.org/spottings/405...
http://www.projectnoah.org/spottings/162...
ironic! i just spotted the pygmy blue,which is the smallest butterfly in the world.On Mt Diablo. Pics are not this great though.
Thanks Pam! You'd be welcome to visit. Also, this spot is strategically located between my and bayucca's home :-)
Wow, great spotting Daniele... have to put this area on my wish list to travel to!
Glad you liked it Kathleen!
Lovely spotting and interesting info! thanks for sharing.
Thanks Luis!
Beautiful series!