Large White, male, Grodek, 4 July

Green-veined White, second brood male, Jesiorak, 3 July

Green-veined White, second brood male, Gugny, Biebrzanski Park, 26 June

Eastern Bath White, meadows near Luzany, 5 July

Moorland Clouded Yellow, raised bog area, Krasne, 26 June

Brimstone, 'railway site' 8km south of Monki, 26 June

Wood White, forest track near Gugny, 26 June

Wood White, Grodek, 4 July

Ilex Hairstreak, Grodek, 4 July

Blue-spot Hairstreak, Gugny forest track, 26 June

north of Narewka, a Violet Copper site confined to a strip of meadow sandwiched between mown fields, 4 July

Violet Copper, second brood male, Planta, 4 July

Violet Copper, near Luzany, 5 July

Violet Coppers, near Luzany, 5 July

Violet Copper, Planta, 4 July

Small Copper, Piaski, 26 June

Small Copper, near Luzany, 5 July

a typical meadow in the Grodek area, 5 July

Scarce Copper, male, 'railway site' south of Monki, 26 June

Scarce Copper, female, Planta, 4 July

Scarce Copper, female, slight variation, also at Planta, 4 July

Scarce Copper, meadows near Luzany, 5 July

Sooty Copper, female, Piaski, 27 June

Sooty Copper, male, adjacent to the Zajazd Monki hotel, 25 June

Sooty Copper, male, showing remarkable iridescence, photo taken in natural light, Piaski site, 26 June

Sooty Copper, near Zajazd Monki hotel, 25 June

Purple-shot Copper, 'railway site' south of Monki, 28 June

Purple-shot Copper, Krasne, 29 June

Short-tailed Blue, female, Planta, 4 July

Short-tailed Blue, 'railway site' south of Monki, 28 June

Holly Blue, second brood female, Grodek, 4 July

Holly Blue, Monki 'railway site', 28 June

at Budy, cut in rotation with adjacent strips, and home to a colony of Alcon Blue hanging on precariously, 4 July

Alcon Blue, Budy, 4 July

Large Blue, Piaski, 26 June

Large Blue, Piaski, 30 June

Large Blue, Piaski, 30 June

Silver-studded Blue, male, Piaski, 26 June

Silver-studded Blue, Piaski, 26 June

Idas Blue, male, possibly...Planta, 4 July

amidst pine forest near Krasne, a site for Cranberry Blue, Bog and Cranberry Fritillaries though only the Blue was seen, 29 June

Cranberry Blue, female, Krasne forest, 29 June

Geranium Argus, female, forest track near Gugny, 26 June

Geranium Argus, Gugny forest track, 26 June

Amanda's Blue, female, 'railway site', Monki, 26 June

Amanda's Blue, Monki 'railway site', 26 June

Amanda's Blue, Woronicza, 3 JUly

Chapman's Blue, male, absence of fore-wing cell-spot noticed prior to photo, Piaski, 30 June

Common Blue, female, Piaski, 30 June

Common Blue, female, Piaski, 30 June