In the „Notes from the Leyden Museum”, Vol. XXXIV, pp. 25 — 30, I have given a list of Dermaptera collected in Java by Mr. EDW. Jacobson. Since then I received from him another collection from the same locality (preserved in the Leyden Museum), containing also a few specimens collected by Mr. MAC GILLAVRY at Baujuwangi (East-Java) and by Mr. de BUSSY at Deli (Sumatra). There are 29 species represented; none of these are new.