Publication
Abalos R. 1939 - Rice leafhoppers. 1. Nephotettix apicalis Motch. 2. Nephotettix bipunctatus Fabr. Local names: hanip (Tagalog), sip-sip (Ilocano), po-or or po-ol (Pangasinan). Farmers' circular. Bureau of Plant Industry, Department of Agriculture and Commerce, Commonwealth of the Philippines. Manila 49: 205-209.