Cynips (dugèsi) longa, new species
agamic form

GALL.-Similar to all galls in the C. bella and C. dugèsi complexes. Mature galls very light olive tan, less often rosy, unspotted; slightly tuberculate, not pubescent, of moderate size (never large), up to 18. mm., averaging nearer 15. mm. in diameter. Figure 58.

HOST.-Quercus rhodophlebia. Not on the dwarf oak, Q. repanda, in the same area.

RANGE.-Hidalgo: Pachuca, 7 N, 8700' (types). Probably throughout the mountains rimming the Valley of Mexico,
possibly occurring further east and north, but not southwest of those mountains. Figure 18.

LIFE HISTORY..—Adults: March 6, 18.

In the mountains to the north of the Valley of Mexico, this insect produces the common oak apples on the taller tree oaks, but not on the little alpine dwarf, Q. repanda. See C. pumilio, the species on the dwarf oak, for a further discussion.

Longa is remarkable in having a nearly normal radial cell. In this respect, the insect is matched only by its Guatemalan relative, C. luminata. This normal cell is, of course, consequent on the fully normal wing of the insect (awing-body ratio of 1.35). The insect is probably close to the place of origin of the whole complex. For a further discussion of this point, see the introduction to the whole dugèsi complex.

The galls of longa are slightly more distinctive than is usual in this complex, being more olive tan in color, with a minutely tuberculate surface.

No species of the C. bella complex is found near the range of C. longa.

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