212 PSYCHE [Oct.— Dec. 



tinctly defined posteriorly; antennae in 9 13-jointed, the third joint 

 longer than the fourth, in $ 15-jointed. . . Phanacis Forster 



(Type P. centaureae Forst.) 



3. Areolet in front wings entirely absent, or at most with only one side 



present .............11 



Areolet in front wings distinct, triangular. 



Areolet not lying directly beneath the origin of the radius . . 5 



Areolet lying directly beneath the origin of the radius or at least its base 

 is on a line with the origin of the radius. 



Scutellum at base distinctly bifoveated, the foveae separated by a 

 carina ..... ...... 4 



Scutellum at base without foveae, but with a transverse furrow, the 

 bottom of the furrow being finely streaked. 



Thorax coriaceous, with indistinct parapsidal furrows ; areolet. 

 very delicate, nearly obsolete ; antennae in 9 



Solenozopheria Ashmead 

 (Type S. vaccinii Ashm.) 



4. Scutellum in outline conical or pyramidal ; mesopleura on lower half coarsely 



sculptured, the disk with some striae; antennae in ? 13-jointed, the third 

 joint distinctly longer than the fourth, in $ 14-jointed Gonaspis Ashmead 



(Type Diastrophus scutellaris Gillette.) 

 Scutellum normal, rounded or obtuse behind, never conical or pyramidal ; 

 mesonotum smooth, not longitudinally striated, the parapsidal furrows dis- 

 tinct ; antennae in 9 14-jointed, in ^ 15-jointed. Diastrophus Hartig 



(Type D. rubii Hartig.) 



5. Mesonotum perfectly smooth and shining, with the parapsidal furrows distinct, 



or at least sharply defined posteriorly ....... 6 



Mesonotum not perfectly smooth and shining, shagreened, coriaceous, finely 

 punctate, or longitudinally striated ....... 7 



6. Antennae in 9 13-jointed, in $ 15-jointed, the third joint not longer than the 



fourth ; scutellum rugulose ; metathoracic carinae absent Xestophanes 

 Forster ...... (Type Cynips potentillae Retzius.) 



Antennae in 9 and $ 14-jointed, the third joint a little longer than the 

 fourth; scutellum almost smooth; metathorax with two parallel, widely sepa- 

 rated carinae ........ Gillettea Ashmead 



(Type G. taraxaci Ashm.) 



7. Mesonotum not longitudinally striated, either shagreened, coriaceous, or very 



closely finely punctate, with the parapsidal furrows distinct . . . 8- 



Mesonotum longitudinally striated, with the parapsidal furrows very short and 

 indistnict. 



