Published in Entomologische Berichten Amsterdam, in 1938, in volume 10, pages 8-12

Published in Entomologische Berichten, in 1938, in volume 10, issue 219, pages 12-14

Published in Entomologische Berichten, in 1938, in volume 10, issue 221, pages 33-36

Published in Entomologische Berichten, in 1938, in volume 10, issue 222, pages 52-59