tennal segments, and in the greater extension of the rufous color on the head, the thorax, and the legs; length 2 to 3 mm.
The hard, monothalamous galls, which are spherical with a slightly flattened base, have a beautiful red color which is broken by more or less concentric, light yellow, and usually slightly warty bands. The galls are up to 8 mm. in diameter. Abundant, but they occur only singly.
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 inserts and galls which I have from Germany, Hungary, Denmark, and Finland, bearing determinations by Forsius, P. Eigen, Sajo, and Hoffmeyer (as detailed with the distribution data).
INQUILINES.—Synergus pallicornis Hartig. Emerges in May (acc. Mayr 1872). S. apicalis Hartig (Brischke acc. Kieffer 1901).
PARASITES.—Callimome longiventris Brischke (acc. Adler-Straton 1894).
Decatoma biguttata (Swederus) (Brischke 1882 acc. Dalla Torre 1898).
D. variegata Walker (= D. signata Nees) (Brischke 1882 acc. Dalla Torre 1898).
Elachistus cyniphidum Ratzeburg (Ratzeburg 1848).
Entedon cyniphidum Ratzeburg (acc. Ratzeburg 1848).
Eupelmus sp. Emerges the following February (acc. Wachtl 1876).
Eurytoma aciculata Ratzeburg (acc. Blösch 1903).
E. appendigaster (Swederus) (Hartig acc. Dalla Torre 1898).
E. rosae Nees. Emerges in May of the following year (acc. Mayr 1878).
Habrocytus saxeseni (Ratzeburg) (Brischke 1882 acc. Dalla Torre 1898).
Mesopolobus fasciiventris Westwood. Emerges in September of the same year (acc. Wachtl 1876).
Ormyrus nodulosus Fonscolombe. Emerges in May of the following year (acc. Mayr 1904).
O. punctiger Westwood (acc. Dalla Torre 1898).
Syntomaspis cyanea (Boheman). Emerges from March to June in the following year (acc. Mayr 1874).
S. lazulina Förster. Emerges in May and June of the following year (acc. Mayr 1874).
Torymus abdominalis Boheman. Emerges in August of the same year (acc. Mayr 1874). Emerges in September of the same year (acc. Wachtl 1876).
T. nigricornis Boheman (= T. regius Nees) (acc. Mayr 1874). Emerges in September of the same year (acc. Wachtl 1876).
The beautifully banded galls of this variety appear to be fairly common in Central Europe. Connold (1908) records
