Callirhytis floripara Weld.

Quercus agrifolia
Flower galls
Fig 45. Scattered pointed cells. April.

Fig. 45. Q: agrifolia. Adults were emerging Apr 29 and ovipositing in young acorns (Carpinteria). The same tree had galls of Callirhytis carmelensis Weld on it (Fig. 49).

Gall (pl. 1, fig. 4): A thin-walled, conical, tan gall measuring up to 2.2 mm long by 1.0 mm. in diameter, developed from a filament and bearing distally trace of a shriveled anther, scattered in among normal stamens in a much-shortened inflorescence.

Callirhytis floripara, new species

Host: Quercus agrifolia Nee.

Gall (pi. 1, fig. 4) : A thin-walled, conical, tan gall measuring up to 2.2 mm. long by 1.0 mm. in diameter, developed from a filament and bearing dis tally trace of a shriveled anther, scattered in among normal stamens in a much-shortened inflorescence.

Habitat: The types are from galls collected from a tree of Q. agrifolia Nee at Carpinteria, Calif., on Apr. 29, 1918, when adults were emerging in large numbers and when adults (probably these) were observed ovipositing in young acorns. Adults continued to emerge until May 18 in material sent to Washington as "Hopk. U. S. No. 15606V This tree also had galls of Callirhytis carmelensis Weld on acorns of the previous season. These flower galls were seen also at Paso Robles and Monterey, Calif., on trees which had C. carmelensis also, circumstantial evidence that this is the alternating generation of that species.