The Leiden Museum of Natural History has received a gigantic Hepialid, sent over by Mr. P. O. Stolz from Soerian (distr. Alahan Pandjang, W. Sum.). As far as I can find in literature, it was till now unknown that in Sumatra such insects are living. In the East-Indian Archipelago Hepialidae are known from Borneo, Java and Amboina, from the Aroe islands and from New-Guinea. Java is inhabited by representatives of three genera: Palpifer Hamps., Hepialiscus Hamps. and Phassus Moore. Their species are not numerous. Mr. P. C. T. Snellen recorded in the „Tijdschrift voor Entomologie", vol. XLIII, pp. 29—33 the following species: Palpifer sordida Snell., Hepialiscus marcidus Butl., Phassus damor Moore and Phassus signifer Walk. From Borneo is only known Phassus signifer Walk.; from Amboina are recorded Hepialus rosatus Pag. and Hepialus tegulatus Pag. On the Aroe islands Casana trichiloides Walk, has been captured. No sooner had we come into New-Guinea, than the number of the Hepialidae begins to rise, till we have reached the Australian regions, where the maximum of species is to be found. These communications are drawn from the „Lepidopterorum Catalogus" by Aurivillius and Wagner, part 4, 1911. Returning to the Hepialidae from Sumatra I must mention moreover two specimens of Phassus damor Moore in the collection of Messrs. Piepers and Snellen. For the determination of these species I have used: List Spec. Lep. Ins. Coll. Brit. Mus. by F. Walker, 1856; Cat. Lep. Ins. Mus. E. I. C. by Th. Horsfield and Moore, 1858—1859; Faun. Brit. Ind. by G. F. Hampson, 1892, and the above cited memoir by Mr. Snellen. Judging from these works the specimen collected by Mr. Stolz