Kermes cockerelli Ehrhorn, 1898

Coccus cockerelli (Ehrhorn, 1898)
Talla cockerelli (Ehrhorn, 1898)

Hosts: Quercus chrysolepis, douglasii, durata, garryana, kelloggii, lobata

Structure: Adult female is deeply segmented, light brown in color, with red eyes (Ehrhorn, 1898a).

Distr: CA, OR

Kermes cockerelli Ehrhorn

Coccus cokerelli
Talla cockerelli

Hosts: Quercus lobata. [observations on Q chrysolepis, kelloggii listed as "questionable"]

Post-reproductive female. Ehrhorn (1898) described the post-reproductive female as ... 5 mm. long, 4.5 mm. broad and 4 mm. high, deeply segmented, dorsum usually marked with black lines and spots along the sutures, some species not showing any. There is a broad, median, longitudinal groove, where the segmentation is obsolete; on each side of this the segments are strongly gibbous. Color light brown, without any conspicuous black specks ....

Distr: CA

Kermes cockerelli

Hosts: Quercus kellogii

Just recently Mr. E. O. Essig sent me Kermes galliformis Riley and Kermes cockerelli Ehrh. collected by Mr. E. J. Branigan on Cache Creek near Yolo, Yolo County, California, May 16, 1910, on California black oak, Quercus kelloggii Newli. Here they were associated together on the same host plant. Kermes cockerelli Ehrh. is of a light brown color and strongly gibbose.

Distr: CA