List of the Insect Fauna of the County. 151 Synopsis of Species. Part II. Entomological Arrangement. Hymenoptera. Cynipidae. Rhodites, Hartig. R. Eglanteriae, Hart. Gall on Rosa. Common. R. Rosarum, Gir. Gall on Rosa. Generally distributed, but not common. R. Rosa, L. Gall on Rosa. Very common. Aulax, Hartig. A. Glechomae, Hart, Gall on Glechoma. Birdbrook, Burn- ham, Widford. A. Rhoeadis, Hart. Gall on Papaver Rhoeas. Hockley. A. Hieracii, Bouche (Sabaudi, Hart.) Gall on Hieracium. Steeple Bumpstead, Danbury, Thundersley. Xestophanes, Forster. X. Potentilla, Vill. Gall on Potentilla. Danbury, Epping Forest. Diastrophus, Hartig. D. Rubi, Hart. Gall on Rubus. Generally distributed, but not common. Andricus, Hartig. A. gemma, L. Gall on Quercus. Common. A. globuli, Hart. Gall on Quercus. Hadleigh, Hazeleigh, Hockley, Mundon. A. INFLATOR, Hart. Gall on Quercus. Generally distributed, but not common. A. radicis, Fabr. Gall on Quereus. Maldon, Rayleigh. A. noduli, Hart. Gall on Quercus. Common. A. Sieboldi, Hart. Gall on Quercus. Birdbrook, Maldon, Rayleigh, Thundersley. A. corticis, L. Gall on Quercus, Maldon, Rayleigh,