I believe that the largest length wise is Porcellio magnificus.What is the largest terrestrial isopod species?
Have you seen an adult Helleria? I've not even seen little ones.Helleria brevicornis may be the bulkiest/heaviest terrestrial species, though rearing full grown adults takes a while compared to the others mentioned here.
I've seen pictures of adults, they're really large! And I have a breeding group myself, though they're far from full grown yet.Have you seen an adult Helleria? I've not even seen little ones.