Notes on the Biology of the Leafhopper Eutettix strobi Fitch

In the vicinity of Ames, Iowa, the leaves of the common pigweed or lamb\u27s quarters, Chenopodium album L. are frequently spotted with a brilliant reddish discoloration. This is due, as Osborn first noted, to the feeding punctures of a small leafhopper, Eutettix strobi Fitch. The writer has observed this species at Ames for several years and has accumulated some scattered notes on its life cycle and also the method of its injury to the pigweed leaves. Since several species of leafhoppers are now known to transmit or carry various plant pathogens, it is thought that these few notes may be of interest as a possible clue to the method of disease transmission by more important species