NOTES ON THE SPITTLEBUG GENUS ECTEMNONOTUM (HOMOPTERA, CERCOPIDAE)

Cosmoscarta nigra Atkinson is transferred to the genus Ectemnonotum Sc hmidt. E. strangulatum Lallemand & Synave is synonymised with E. fruhs torferi (Jacobi) and E. distanti var. rubrovittatum Schmidt with E. di stanti (Butler). E. fruhstorferi and E. nigra are reported from China and China and Laos, respectively, for the first time. Metcalf & Horton 's (1934) record of E. bivittatum from China is rejected. Four lectoty pes are designated. Syntypes of one Jacobi species found in the Natura l History Museum, London, and four Schmidt species in the U.S. Nationa l Museum of Natural History, Smithsonian Institution, Washington, D.C. , are reported.