10. Cicadulina bipu.nctella (Matsumura) (fig. 18, a-d).

Cicadula bipunctella Matsumura, Coll. Sci. Tokyo, Jour. 23: 12, 1908.

Cicadulina zeae China, Bull. Ent. Research 17: 43, 1926.

,Dr. Paul Oman has suggested that these two species are synonymous. C. bipunctella was described from Egypt and zeae from Kenya. The specimens in the present collection agree in all essential details with Matsumura's description and China's description and illustration. It occurs rarely on corn and grass in Guam. Piti, May 2 and 8, on grass; Dededo, May 11, on corn, Usinger .