Bernard Castelein / Green-veined white butterfly (Pieris napi) resting on Purple loosestrife (Lythrum salicaria), Brasschaat, Belgium. August.

Bernard Castelein / Fir trees (Abies sp.) and Heather (Calluna vulgaris) in flower at sunrise, Klein Schietveld, Brasschaat, Belgium. August.

Bernard Castelein / Grayling butterfly (Coenonympha pamphilus) resting on St. John's wort (Hypericum perforatum) seedheads, Klein Schietveld, Brasschaat, Belgium. August.

Bernard Castelein / Raft spider (Dolomedes fimbriatus) resting on Tansy flowers (Tanacetum vulgare), Klein Schietveld, Brasschaat, Belgium. August.

Guy Edwardes / Southern festoon butterfly (Zerynthia polyxena), newly emerged adult, resting on Birthwort (Aristolochia clematitis) stem, near Bratsigovo, Bulgaria. May.

Guy Edwardes / Geum (Geum coccineum) flowering among Forget-me-nots (Myosotis sp.), Rhodope Mountains, Bulgaria. June.

Guy Edwardes / Southern festoon butterfly (Zerynthia polyxena) newly emerged adult, resting on its food plant, Birthwort (Aristolochia clematitis), near Bratsigovo, Bulgaria. May.

Guy Edwardes / Five Southern festoon butterfly (Zerynthia polyxena) eggs laid on Birthwort (Aristolochia clematitis) leaf, near Bratsigovo, Bulgaria. May.

Guy Edwardes / Geum (Guem coccineum) in flower, Rhodope Mountains, Bulgaria. June.

Guy Edwardes / Geum (Geum coccineum) flowering amongst Forget-me-nots (Myosotis sp.), Rhodope Mountains, Bulgaria. June.

Guy Edwardes / Three Transparent burnet moths (Zygaena purpuralis) roosting on Viper's bugloss (Echium vulgare) flower, Rhodope Mountains, Bulgaria. June.

Guy Edwardes / Twin-spot fritillary butterfly (Brenthis hecate) resting on scabious (Scabiosa sp.) flower, Rhodope Mountains, Bulgaria. June.