www.ukbutterflies.co.uk

A family holiday in the Sorrento area gave me an opportunity to head to the mountains for a quick bit of butterfly watching....

Help with ID appreciated! All photos taken at Lake Laceno, Campania, Italy on the 30th July 2017.

This one was fairly large This was a tiny blue (smaller than a typical UK Small Blue): About the size of a Common Blue, maybe it is? Thank you!

Your first and third photos both look like Chalkhill Blue and the second photo may be a small and worn female Silver-studded Blue but I would wait for more expert opinion than mine before writing anything down. Nice photos by the way.

Your second one certainly has the look of a worn, female Silver Studded Blue. I fancied your first as a Chalkhill but the specimen in your last image is really weakly marked, although the general colour does seem like coridon, and it also has the black marks going horizontally through the upper wing margin.

Thanks guy's...

I didn't see 1 and 3 open their wings... otherwise I might have managed an ID!

Thanks again for your help!

Hi all. I'm checking posts from my iPhone - usually a good way of making a fool of myself - but I would say the middle one can't be silver stud as it has a cell spot. In addition, what is visible of the hindwing ups looks wrong. I would say it is a female common blue. Tiny specimens are common in the summer brood, especially in the context of a heatwave, where foodplant desiccation prompts the larvae to pupate early. In small individuals the spots often look crowded.

Guy

Thanks Guy!

I'm presuming these are Male Common Blues from the same area? and from Lake Matese on the 25th JUly:

My Blue Highlight of the Trip! someone on Flickr ID'd this as an Italian Furry Blue:

Male Uppers: Male and Female underside:

Yes to the common blues - and note that in blues, unlike other groups, females are often smaller. And yes to the furries! Brilliant! I can't remember the current specific/subspecific status of the Italian populations but will check on my return if no one else has commented.

Guy

rezamink wrote:My Blue Highlight of the Trip! someone on Flickr ID'd this as an Italian Furry Blue

Cracker! What a great find.

Thanks Paul, Guy and David.

each year in France i come across a tiny blue butterfly which Guy always informs me is a Common Blue

i am off in a week or so and will no doubt find another miniature one affected by the heatwave

Sorry Charles! Sometimes I'm wrong, though ...

The recent monograph on subgenus Agrodiaetus (Lycaenidae part IV, Guide to the Butterflies of the Palearctic Region, 2016) recognises five subspecies of Polyommatus dolus (furry blue): dolus, vittatus, virgilius, gargano and paravirgilius. As the author admits, this is a bit arbitrary, but they are all discrete populations. The butterflies in this post are paravirgilius, which is restricted to the Sorrento Peninsula - a very small area, if the map in the book is right. To me that makes it a brilliant taxon to photograph! You won't see it again unless you go back there!

Some authors lump the three southern Italian subspecies (virgilius, gargano and paravirgilius) together as a separate species, Polyommatus virgilius, which I guess is what your Flickr friends meant by 'Italian furry blue', Rezamink. It doesn't really matter - there is no chance of these populations interbreeding with the north-western Italian populations (ssp. dolus).

Guy

Wow! thanks for all the information Guy...

Yes, I was given Italian Furry Blue (Agrodiaetus virgilius) as the ID.

A cracker indeed! You've got something there most of us never have, and probably never will, see.