Before my departure to Java I intended to give a monographic revision of the Neuropteroidea of Insulinde, but want of time and of sufficient materials forced me to give up this intention and I restricted it to the monographic revision of the MECOPTERA and PLANIPENNIA, the two orders I studied with special attention since 3 years in behalf of the „Catalogue des collections du baron E. de Sélys Lougchamps”. The territories that I name Insulinde are the Dutch colonies of the malayan and papuan archipelago. I describe also the species known from those parts of Borneo and New Guinea, that do not belong to the dutch possessions, as they very probably also will occur in them. Those of neighbouring countries are noted so far as they are important for comparison.