The type specimen was collected in Žemaitija National Park (Plungė District); there, in an abandoned gravel pit in Žalnierkalnis, the fungus was found growing on the thallus of the crustose lichen Verrucaria bryoctona, which itself was growing on gravelly soil.

The species epithet refers to the type locality: samogiticum is formed from the Latin name for Žemaitija (Samogitia).

[1] Graphium samogiticum is an anamorphic fungus, meaning that its sexual cycle has not been observed, or does not exist–only asexual and vegetative phases are known.

[1] Of the twenty six known lichenicolous fungi that have a strict host preference on genus Verrucaria, Graphium samogiticum is the only anamorphic fungus.

[2] Little is known about the ecology and distribution of Graphium samogiticum; the lichens it was parasitising are inhabitants of a little-studied habitat the authors call a "pioneer epigeal community".