Recent taxonomical reclassification by Grey-Wilson (2006) has separated 4 new species from M. napaulensis: M. chankheliensis, M. ganeshensis, M. staintonii and M. wilsonii, while M. wallichii has been reinstated.
A recent taxonomic revision by Grey-Wilson (2006) has resulted in the differentiation of 4 new species from M. napaulensis: M. chankheliensis, M. ganeshensis, M. staintonii and M. wilsonii, with M. wallichii being revalidated.