. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. THE YELLOW-FACED LEAFHOPPER. 11 grasses or on low vegetation and appear to be general feeders. They have not been determined as restricted to any single kind of grass as a host plant. The Yellow-faced Leafhopper. (Platymetopius front alls Van D.) The yellow-faced leafhopper (Platymetopius frontalis Van D.) is a much darker species than the acutus, ranging from dark brown to distinctly black with a broad border and lemon-yellow face. The forewings are marked with numerous round, white spots. In size it is somewhat
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. THE YELLOW-FACED LEAFHOPPER. 11 grasses or on low vegetation and appear to be general feeders. They have not been determined as restricted to any single kind of grass as a host plant. The Yellow-faced Leafhopper. (Platymetopius front alls Van D.) The yellow-faced leafhopper (Platymetopius frontalis Van D.) is a much darker species than the acutus, ranging from dark brown to distinctly black with a broad border and lemon-yellow face. The forewings are marked with numerous round, white spots. In size it is somewhat sliorter but more robust than acutus and the head is not so long or so sharply pointed. (See fig. 10.) The young, which resemble the adults in shape, have a broad, light-yellow or creamy colored stripe occupying the large part of the back, but leaving a mar- ginal dark border some- what like that of Delto- cej^lialus inimicus, but in this species the marginal stripe expands on the head in front of the eye. The life history of the species is similar to that of Platyme- topius acutus, the nymphs appearing about the last of May and being found through the most of June, and adults occurring from the middle of June on nearly through July. The nymphs of the second generation appear by the middle of July and occur until the latter part of August, while the adults of this second generation begin to appear about the middle of August and are found abundantly through September into October, presumably depositing eggs, which survive the winter, as adults are not to be found late in autumn or early in spring. This species seems to prefer shaded locations, as it is usually found much more plentiful in the vicinity of thickets or coarse weeds, but it occurs also in rather rank grass, clover, etc., in pastures or meadows. The nymphs are swept from the undergrowth of grass and weeds. The species has a very extended distribution in the United States, ranging from eastern Canada to New York and
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