Cynips (plumbea) scutata, new species
agamic form

GALL.-Similar to gall of C. subcostalis. Rather large, subspherical, prominently drawn out to a conically tipped or truncate base; dull, only slightly shriveling, with light gray scurf prominent, persistent; denuded surface rosy tan or (more often) a peculiar salmon or rose brown; up to 9.0 mm. in diameter. Figure 107.

HOSTS.– Quercus macrophylla and Q. nudinervis [both magnoliifolia], which are the prevalent oaks of Guerrero.

RANGE.-Guerrero: Taxco, 8 NE, 8000' (types; Q. macrophylla). Possibly restricted to the eastern end of the state of Guerrero, Mexico. Figure 102

LIFE HISTORY..—Adults: March 10.

The gall is practically identical with the galls of subcostalis. Scutata and subcostalis are clearly geographic segregates from the texcocama group of species. Scutata occurs in Eastern Guerrero (known from near Taxco) on Q. macrophylla. Fuscipennis is found in the same area on Q. nudinervis. Subcostalis occurs in Western Guerrero (known from west of Chilpancingo) on both Q. macrophylla and Q. nudinervis.