Abstract
Taiwanese species of the crane fly subgenus Tipula (Formotipula) Matsumura, 1916, are reviewed. Tipula (Formotipula) argentea, new species, is described and figured. The only other previously known Taiwanese species, Tipula (Formotipula) holoserica (Matsumura, 1916), is redescribed. The external anatomy of the last instar larva and pupa of T. (F.) holoserica is described and illustrated, with a brief discussion of the biology of the larva.