Blues can pose serious ID challenges similar to LBJs in birding due to their diminutive nature, and subtle inter species differences—often a few tiny spots marking the difference between similar looking ones. Therefore, when confronted with these tiny flying puzzles, most naturalists resort to a convenient escape route to loosely lump them all as "blues" or "lycaenids," without putting the effort to narrow their idenitifcations down to species level. To be honest, I was one of these until very recently.
For them, I have now started to use the same method that I use to learn dragonflies and damselflies: (macro) photograph them first, look them up in various sources to identify them myself first before getting my results verified by experts. Although the first aspect could be daunting at times, I find this method to be the best one to learn such tough groups of insects properly.
Here I list a few Lycaenids photographed at various locations including at my home garden. I’d like to thank the entomologist Michael van der Poorten, who is working on a book on butterflies of Sri Lanka, for taking the time to confirm my identifications; I got six right and 1 wrong!
Oh! And I also share here my geek score. Isn't this a fitting occation do so ? How about yours?
Tiny Grass Blue Zizula hylax
Tiny Grass Blue Zizula hylax Common Hedge Blue Actyolepis pushpa felderi
Metallic Cerulean Jamides alecto
Common Cerulean Jamides celeno
Plains Cupid Chilades pandava
African Babul Blue Azanus jesous
Lesser Grass Blue Zizina otis
Yamfly Loxura atymnus
Common Pierrot Castalius rosimon