Translation. Cynips disticha new species: rufous, the antennae dark brown; with the grooves of the mesonotum, the bases of the coxae and the femora, the sides of the metathorax, and the dorsal surfaces of the abdomen more or less black; length 2.5 to 3.0 mm.
The gall of the size, form, and color of a pea, somewhat constricted cone-shaped above, distinctly constricted in the middle, with a small navel. The inner cavity of the gall is divided by a horizontal partition into two chambers, only one of which, however, is inhabited.
TYPES.—Not designated and probably not in existence. Hartig's material from northern Germany.
The present descriptions are based on the published descriptions cited in the bibliography, and on material in my collection from Germany, Italy (Triest), and Austria, determined by P. Eigen and G. Mayr (as detailed in the distribution data above).
INQUILINES.—Synergus albipes Hartig. Emerges in August of the same year (acc. Mayr 1872).
S. pallicomis Hartig (acc. Mayr 1872). Emerges the following April.
S. thaumacerus Dalman (Brischke 1882 acc. Kieffer 1901).
S. tscheki Mayr. Emerges in March and April of the following spring (acc. Dalla Torre and Kieffer 1910).
S. vulgaris Hartig (acc. Hartig 1840). Emerges from March to May in the following spring (acc. Dalla Torre and Kieffer 1910).
PARASITES.—Decatoma biguttata (Swederus) (= Eurytoma signata Nees). (Brischke acc. Dalla Torre 1898). Emerges the following spring (acc. Mayr 1905).
D. variegata Walker (acc. Dalla Torre 1898).
Eupelmus urozonus Dalman (acc. Ruschka 1920).
Eurytoma rosae Nees. Emerges from October of the same year into the following spring (acc. Mayr 1878).
E. setigera Mayr. Emerges the following year from January to May (acc. Mayr 1878).
Habrocytus saxeseni Ratzeburg (acc. Kieffer 1901).
Mesopolobus fasciiventris Westwood (Brischke 1882 acc. Dalla Torre 1898).
Olinx gallarum (Linnaeus) (Brischke 1882 acc. Kieffer 1899).
Ormyrus punctiger Westwood (= Siphonura brevicauda Nees) (Brischke 1882 acc. Dalla Torre 1898). Emerges from May to July in the following year (acc. Mayr 1904).
O. schmidtii (Nees) (Hartig acc. Dalla Torre 1898).
O. variolosus (Nees) (Brischke acc. Dalla Torre 1898).
Syntomaspis cyanea (Boheman) (acc. Mayr 1874).
S. sapphyrina (Boheman) (= S. caudata (Nees)) (Brischke 1882 acc. Kieffer 1901).
Torymus abbreviatus Boheman (Giraud 1877 acc. Kieffer 1899).
T. abdominalis Boheman (acc. Kieffer 1901).
T. auratus (Fourcroy) (Brischke 1882 acc. Kieffer 1899).
