Cynips (plumbea) fucosa, new species
agamic form

GALL.-Very close to gall of texcocana. Almost perfectly spherical, or slightly flattened at base; dull, only slightly shriveling; with a conspicuous scurf which is persistent; old gall bluish gray; denuded gall dark purplish tan; up to 8.5 mm. in diameter. Figure 113.

HOST.-A relative of Quercus chihuahuensis or of the dwarf oak, O. microphylla. The host of our material a small tree apparently not yet described.

RANGE.-Querétaro: Querétaro, 28 N, 7300' (types; trees near Q. microphylla). Guanajuato: San Felipe, 20 SW, 8000' (Q. chihuahuensis). Probably restricted to the high mountain areas of Central Mexico, centering in the states of Querétaro and Guanajuato. Figure 102

LIFE HISTORY..—Adults: March 2, 5, 17

This is the plumbea representative on the Q. chihuahuensis group of oaks in the high mountains which lie to the east of León and north of Querétaro, in Central Mexico. Both in insect and gall characters it is close to texcocana. Texcocana is confined to the mountains which rim the Valley of Mexico.

- Alfred Kinsey: (1936) Origin of higher categories in Cynips^©