Andricus rotundula
(agamic)agamic:The agamic (AKA unisexual) generation of an oak gall wasp (cynipini) species consists of only female wasps, which do not mate before laying the eggs which become the male and females of the sexual generation (sexgen).
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The gall's range is computed from the range of all hosts that the gall occurs on. In some cases we have evidence that the gall does not occur across the full range of the hosts and we will remove these places from the range. For undescribed species we will show the expected range based on hosts plus where the galls have been observed.
Gall (pl. 16, fig. 2). — A midrib cluster of a few globular galls, usually on the under side of a leaf in the fall. Covered with short straight hairs when young and green, later bare, smooth, tan, up to 2.7 mm. in diameter with a central cell 1.5 by 1.2 mm. supported by stout radiating fibers.
Habitat. — The type emerged in November from a gall collected at Camp Baldy, Calif., on November 7, 1939. One paratype was cut out September 5, 1918, from a gall collected at Los Gatos. Another was cut out November 10, 1949, from a gall collected at Idyllwild on November 6, 1948. One (not in the type series and all amber) was cut out dead in 1946 from a gall collected on Mount St. Helena in August 1922.