Issued by Romania in 1964, this 55 Bani stamp features the Lymantria dispar moth, an important forest species depicted with refined biological accuracy. The cream-toned wings with spotted markings stand out against a bold blue background, accompanied by delicate line art of woodland scenery. Designed by Aida Tasgian-Constantinescu, the issue forms part of Romania’s mid-1960s natural science thematic series. A desirable item for collectors of entomology, thematic fauna, Eastern European issues, and engraved wildlife designs.