Zapatella herberti (Weld) comb. n.

Eumayria herberti Weld, 1926 (females, galls).
Bassettia herberti (Weld) (Burks 1979).
Callirhytis herberti (Weld) (Melika and Abrahamson 2007).

Only the asexual generation is known. It induces stem swelling galls on Quercus agrifolia Née, Quercus kellogii Newb., Quercus wislizeni A. DC in California (USA) (Weld 1926, Burks 1979). Larval chambers (cells) are nested in the peripheral layer of wood, just under the bark of vigorous shoots 2cm or less in diameter. Adults emerge in late May (Weld 1926).

Bassettia herberti (Weld)

Quercus agrifolia, kelloggii, wislizeni
Stem galls, woody stem swellings or cells under bark
Fig 61. Cells under bark, swelling slight.

Fig. 61. Q: kelloggii. Occurs on Q. agrifolia and wislizeni also. Adults emerged May 2l and June 7 (Placerville). Woodpeckers cut them out.

Eumayria herberti, new species

Hosts: Quercus kelloggii; the same sort of cells were noted in Quercus agrifolia and wislizenii

Gall: Cells in the peripheral layer of wood just under the normal bark of vigorous shoots 2 cm or less in diameter. Single cells measure 3 mm by 1 mm, the long axis parallel with long axis of twig, the exit holes .7 mm in diameter. If several cells lie close together their shape is somewhat distorted and a slight swelling may be visible on surface.

Range: CA

Callirhytis herberti Weld, 1926

[transferred from Bassettia to Callirhytis]

Biology--Only the asexual generation is known which induces stem galls on Q agrifolia, kelloggii, wislizeni. Adults emerge in May-June.

Distribution--CA