List of the Hungarian Terrestrial Isopod Fauna (in alphabet, with photos at the end)

Distribution data according to SCHMALFUSS, H. (2003): World catalog of terrestrial isopods (Isopoda: Oniscidea). – Stuttgarter Beiträge zur Naturkunde, Serie A, Nr. 654: 341 pp.

1.Agabiformius lentus  (Budde-Lund, 1885); DISTR. – Inhabitant of the Mediterranean coasts, by human activities introduced to many other parts of the world.

2. Androniscus dentiger  Verhoeff, 1908;
DISTR. – Europe and North Africa, often synanthropically; also known from greenhouses in North America.

3. Androniscus roseus (C. Koch 1838);   DISTR. – From eastern France to Romania, north to southern Germany (not in Bulgaria and Greece).

4. Armadillidium nasatum nasatum  Budde-Lund, 1885; DISTR. – In Italy, France, northern Spain, the Netherlands and southern England autochthonous, synanthropic in northern and eastern Europe, introduced in North America.

5. Armadillidium opacum (C.Koch, 1841); DISTR. – Central Europe from central Sweden to northern Italy and from eastern France to Croatia and Hungary.

6. Armadillidium pictum Brandt, 1883; DISTR. – Europe except Mediterranean and southeastern part.

7. Armadillidium versicolor  Stein, 1859; DISTR. – Eastern Europe (southeastern Germany; Austria; former Czechoslovakia; Hungary; former Yugoslavia; Albania; Romania; Bulgaria).

8. Armadillidium vulgare  (Latreille, 1804); DISTR. – Autochthonous in the Mediterranean region, by human activities introduced to all parts of the world.

9. Armadillidium zenckeri  Brandt, 1833; DISTR. – Eastern central Europe.

10. Buddelundiella cataractae Verhoeff, 1930;   DISTR. – Europe.

11. Calconiscellus karawankianus (Verhoeff, 1908);
DISTR. – Southeastern Austria; Slovenia; Hungary.

12. Chaetophiloscia cellaria (Dollfus, 1884);
DISTR. – Northern Mediterranean region from Spain to Greece.

13. Cordioniscus stebbingi (Patience, 1907);
DISTR. – Eastern Spain. Synanthropically introduced all over the world, mainly in greenhouses.

14. Cylisticus convexus (De Geer, 1778);  
DISTR. – Europe and Asia Minor, introduced to northern Africa and North and South America.

15. Haplophthalmus danicus Budde-Lund, 1880; DISTR. – Europe; introduced to many other parts of the world.

16. Haplophthalmus hungaricus Kesselyák, 1930;  DISTR. – Hungary.

17. Haplophthalmus mengii   (Zaddach, 1844); DISTR. – Europe; North Africa; Azores; Canary Islands.

18. Haplophthalmus montivagus  Verhoeff, 1941; DISTR. – France; Switzerland; Germany; Italy; Austria; Hungary; southern Poland.

19. Hyloniscus riparius  (C. Kocs, 1838); DISTR. – Central and eastern Europe; introduced in North America.

20. Hyloniscus transsilvanicusVerhoeff, 1901;  DISTR. – Slovakia; Hungary; Serbia; Romania.

21. Hyloniscus vividus (C. Koch, 1941);  DISTR. – Slovenia; Hungary: Transdanubia; Hercegovina.

22. Lepidoniscus minutus (C. Koch, 1838);  DISTR. – Southern Germany; southern Poland; former Czechoslovakia; Austria; Hungary; NE-Italy; former Yugoslavia; northern Greece.

23. Ligidium germanicum  Verhoeff, 1901; DISTR. – From southeastern Germany and northern Italy to southern Poland, Moldavia and northern Greece.

24. Ligidium hypnorum  (Cuvier, 1792); DISTR. – Europe and western Asia.

25. Ligidium intermedium  Radu, 1950; DISTR. – Northern Romania; NE-Hungary. (Probably a synonym of L. germanicum.)

26. Mesoniscus graniger  (Frivaldsky, 1865); DISTR. – Slovenia; Serbia; Bosnia and Hercegovina; Slovakia; Romania.

27. Oniscus asellus Linnaeus, 1758; DISTR. – Northern and western Europe east to Finland, Poland, Ukraine, not in the Mediterranean area; Madeira; Azores; introduced in many places in the Americas.

28. Orthometopon planum  (Budde-Lund, 1885); DISTR. – SW-France; northern Italy; northern Croatia; southern Slovakia; northern Hungary.

29. Paraschizidium coeculum (Silvestri, 1897);   DISTR. – Spain: island Menorca; SW-France: Charente Maritime, island Aix; central Italy; Croatia: Istria.

30. Philoscia affinis Verhoeff, 1908; DISTR. – SW-Germany; France; NE-Spain; Italy; northern Croatia; northern Algeria.

31. Platyarthrus hoffmannseggii  Brandt, 1833; DISTR. – Europe; North Africa; Asia Minor. Introduced to North America.

32. Platyarthrus schoblii Budde-Lund, 1885;   DISTR. – Macaronesian Islands; Mediterranean region and the Black Sea coasts.

33. Porcellio dilatatus  Brandt, 1833; DISTR. – Europe; introduced to many other parts of the world.

34. Porcellio laevis  Latreille, 1804; DISTR. – Europe and North Africa, introduced to all other parts of the world.

35. Porcellio monticola Lereboullet, 1853 DISTR. – NE-Spain; France; SW-Germany; records from Switzerland and Italy belong to different species.

36. Porcellio scaber  Latreille, 1804; DISTR. – Europe except SE. Introduced to many parts of the world.

37. Porcellio spinicornis Say, 1818; DISTR. – Northern and central Europe; introduced to North America.

38. Porcellionides pruinosus Brandt, 1833; DISTR. – Originally Mediterranean, synanthropically cosmopolitan.

39. Porcellium collicola (Verhoeff, 1907); DISTR. – SE-Germany; SW-Poland; Czechia; Austria; Slovakia; Hungary; southern Yugoslavia; Romania; Moldavia; northern Greece.

40. Porcellium conspersum (C.Kocsh, 1841); DISTR. – Continental temperate Europe (known from the Netherlands; NE-France; Germany; Denmark; Switzerland; Austria; Czechia; Slovakia; Slovenia; Poland; Romania; Ukraine).

41. Porcellium recurvatum Verhoeff, 1901; DISTR. – Austria; western and southern Hungary; former Yugoslavia; western Bulgaria; northern Greece.

42. Proporcellio vulcanius Verhoeff, 1908; DISTR. – Southern Italy, Sicily and island Pantelleria; Hungary (introduced?); Greece: Aegean islands; Lebanon; Israel; Libya.

43. Protracheoniscus franzi Strouhal, 1948; DISTR. – Czechia; eastern Austria; western Hungary.

44. Protracheoniscus major  (Dollfus, 1903); DISTR. – From SE-Germany to central Asia (“Turkestan”).

45. Protracheoniscus politus  (C.Koch, 1841); DISTR. – Eastern Germany; Poland; Czechia; Slovakia; Austria; former Yugoslavia south to Montenegro; Hungary; Romania.

46. Reductoniscus costulatus  Kesselyák, 1930; DISTR. – Known from the Seychelles, Mauritius, Malaysia and Hawaiian Islands as well as from greenhouses in Europe.

47. Tachysoniscus austriacus  (Verhoeff, 1908); DISTR. – Northern Italy; Austria; Hungary; Slovenia; Croatia; Bosnia and Hercegovina.

48. Trachelipus difficilis (Radu, 1950); DISTR. – Poland; Slovakia; Hungary; western Romania.

49. Trachelipus nodulosus (C.Kocs, 1838); DISTR. – Southern and eastern Germany; southern Poland; Czechia; Slovakia; Austria; Slovenia; Croatia; Serbia; Hungary; Romania; Bulgaria.

50. Trachelipus rathkii (Brandt, 1833); DISTR. – DISTR. – Europe except Mediterranean regions.

51. Trachelipus ratzeburgii  (Brandt, 1833); DISTR. – Central and eastern Europe.

52. Trichoniscus bosniensis Verhoeff, 1901; DISTR. – Croatia; Serbia; Bosnia and Hercegovina; SW-Romania.

53. Trichoniscus crassipes  Verhoeff, 1939; DISTR. – SE-Austria.

54. Trichoniscus noricus  Verhoeff, 1917; DISTR. – Southern Germany; Austria; northern Italy; Czechia; Slovakia; Hungary; Serbia; ? Romania.

55. Trichoniscus pusillus  Brandt, 1833; DISTR. – Europe, safe records only north of the Alps. Introduced to Madeira, the Azores and North America.

56. Trichoniscus steinboecki Verhoeff, 1931; DISTR. – Eastern Austria.

57. Trichorhina tomentosa (Budde-Lund, 1893); DISTR. – Tropical America; introduced to greenhouses worldwide.

Illustrations to the research topics:

Porcellionides pruinosus (photo: E. Hornung)

Lives in human influenced habitats in Hungary.

Platyarthrus hoffmannseggii (photo: E. Hornung)

Myrmecophil, lives with different ant species. 

Platyarthrus schoblii (photo: E. Mihalik - E. Hornung)

Recent introduction. It occurs in the nest of Lasius neglectus ant sp.

Orthomethopon planum (photo: E. Hornung)


Protracheoniscus politus (photo: E. Hornung)


Porcellio scaber (photo: E. Hornung)


Armadillidium versicolor (photo: E. Hornung)