222 ENTOMOLOGICAL SOCIETY 



Odonteucoila Ashmead. 



This genus is easily recognized by the scutellum which ends in 

 a tooth or spine, and by the antennas which are long, filiform, 

 with the third joint much shorter than the fourth. 

 Type: O. chapadce Ashm. (Chapada, Brazil.) 



Trissodontaspis Ashmead. 



The scutellum in this genus is unique in the group, the cup 

 being modified into a carina which is gradually dilated posteriorly 

 and ends in a tooth-like projection, while the scutellum proper 

 has a tooth each side posteriorly, the scutellum thus appearing as 

 if tridentate, when viewed from above. The antennas are un 

 usually long, the joints being long and cylindrical, the third 

 joint slightly curved ; the pronotum is elevated into a sharp ridge 

 and deeply emarginate medially, while the mesonotum is longer 

 than wide. 



Type: T. rufipes Ashm. (Chapada, Brazil.) 



Dieucoila Ashmead. 



This genus differs from all others by having the head and thorax 

 finely, opaquely sculptured, by the scutellum, which has two 

 large, oblong shallow foveaa at base, and by peculiarities of the 

 antennae, which are long, the joints cylindrical, long, but grad 

 ually thickened, the third joint a little shorter than the fourth. 



Type: D. subopaca Ashm. (Chapada, Brazil.) 



Zaeucoila Ashmead. 



This genus is easily known by its short, robust form, by the 

 short closed marginal cell, which is hardly longer than wide, the 

 second abscissa of the radius being rather strongly curved out 

 wardly and by the short mesonotum which has a delicate carina 

 down the center, the cup of the scutellum being large, almost 

 round. 



Type: Z. unicarinata Ashm. (Rio de Janeiro.) 



Pseudeucoila Ashmead. 



This genus is proposed for a number of species placed at present 

 in the genus Eucoila Dalla Torre and Kieffer. but not Westwood. 

 The type of Eticoila Westwood is E. crassinervis Westw.,and 

 Psilodora Forster^is a synonym of it. In Pseudoeucoila the 

 wings are pubescent and the marginal cell is closed. 



Type: Eucoila (Cothonaspis} trichopsila Hartig. 



The paper was discussed by Drs. Gill and Howard. Speaking 

 of gall-wasps, Mr. Ashmead stated that the so-called "potato 

 gall " (Tribal/a batatorum Walsh), which was in reality a root- 

 gall on Rubus or Rosa, was described and named by Walsh from 

 specimens given him by a farmer who reported that they were 



