The gall's range is computed from the range of all hosts that the gall occurs on. In some cases we have evidence that the gall does not occur across the full range of the hosts and we will remove these places from the range. For undescribed species we will show the expected range based on hosts plus where the galls have been observed.
Female scale — Globular in shape, 5 mm. long, 6 mm. wide, 5 mm. high. The color is light cream, nearly white, often with bluish cast, with four broad transverse bands of very light yellowish brown. Segmentation distinct; the sutures slightly depressed and marked by small round black dots. Surface shiny and thickly covered with minute black specks, which are seen only through a hand lens. There is a short, very distinct groove posteriorly reaching to the anus. This is a very pretty species and is closely allied with such species as Kermes galliformis, Kermes occidentalis, Kermes nigropunctatus and Kermes essigii. It is nearest to the latter and if gibbose would have been described as a variety of Kermes essigii. Taken on the smaller branches of a single large maul oak, Quercus chrysolepis Liebm., at the Rath Mine, Volcaiao Canyon, Sierra Nevada Mountains, altitude 3,500 feet, near Forest Hill, Placer County, California.
