Scarce Swallowtail, late afternoon nectaring, Ciprovski Monastery, Bulgaria, 18 July

Scarce Swallowtail, Ciprovski Monastery, Bulgaria, 18 July

near Gramada where Scarce Swallowtails, Grizzled Skippers and Wood Whites mud-puddled in small groups, 21 July

Scarce Swallowtail, Vidbol river crossing, Bulgaria, 21 July

Green-veined White, Diva Slatina, Bulgaria, 19 July

Balkan Green-veined White, Babin Zub, Serbia, 21 July

Eastern Pale Clouded Yellow, Martinovo, Bulgaria, 18 July

Wood White, Ciprovski Monastery, Bulgaria, 18 July

Brown Hairstreak, Martinovo, Bulgaria, 18 July

Brown Hairstreak, Martinovo, Bulgaria, 18 July

Montana, Bulgaria, 20 July

Large Copper, male, Ciprovski Monastery, Bulgaria, 18 July

Large Copper, male underside, Ciprovski Monastery, Bulgaria, 18 July

Large Copper, female, near Kopilovci, Bulgaria,19 July

Large Copper, female underside, near Kopilovci, Bulgaria, 19 July

Scarce Copper, female, Diva Slatina, Bulgaria, 19 July

Sooty Copper, female, Ceresovica, Bulgaria, 20 July

Sooty Copper, Ceresovica, Bulgaria, 20 July

on the way to Gramada, Silver-studded and Eastern Short-tailed Blues amongst the marjoram, 21 July

Short-tailed Blue, male, near Kopilovci, Bulgaria, 19 July

Eastern Short-tailed Blue, female, Martinovo, Bulgaria, 18 July

Eastern Short-tailed Blue, Martinovo, Bulgaria, 18 July

Eastern Short-tailed Blue, overlooking Tigoviski Timok valley, Serbia, 21 July

Small Blue, Topli Do, Serbia, 23 July

Small Blue, Kom, Bulgaria, 20 July

Large Blue, Diva Slatina, Bulgaria, 19 July

Large Blue, near Martinovo, Bulgaria, 18 July

Eastern Baton Blue, on ski slope up to Jabucko Ravniste above Babin Zub, Serbia, 22 July

Chequered Blue, male, near Kopilovci, Bulgaria, 19 July

Chequered Blue, Toplodolska valley towards Topli Do, Serbia, 23 July

Silver-studded Blue, male, Toplodolska valley, Topli Do, Serbia, 23 July

Silver-studded Blue, female, also in the Toplodolska valley, Serbia, 23 July

Silver-studded Blue, Toplodolska valley, Serbia, 23 July

Reverdin's Blue, male, one of Europe's butterflies that gives me the biggest headache! Toplodolska valley, Serbia, 23 July

Reverdin's Blue, around Gorno Cerovene, Bulgaria, 17 July

Blue Argus, near Martinovo, Bulgaria, 18 July

Blue Argus, near Martinovo, Bulgaria, 18 July

Ripart's Anomalous Blue, hillside near Ginci, Bulgaria, 17 July

Ripart's Anomalous Blue, near Ginci, Bulgaria, 17 July

Meleager's Blue, male, near Martinovo, Bulgaria, 18 July

Meleager's Blue, female, Toplodolska valley, Serbia, 23 July

Meleager's Blue, female underside, Toplodolska valley, Serbia, 23 July

near Temska, Serbia, 23 July

Chalk-hill Blue, near Martinovo, Bulgaria, 18 July

Chalk-hill Blue, close to Topli Do, Serbia, 23 July

Adonis Blue, Ceresovica, Bulgaria, 20 July

Adonis Blue, Toplodolska valley, 23 July

Common Blues, female on the left, near Gorno Cerovene, Bulgaria, 17 July

False Eros Blue, Jabucko Ravniste, Serbia, 22 July

Duke of Burgundy, unexpected second brood, near Martinovo, Bulgaria, 18 July