ART. 10 GALL-INHABITING CYNIPID WASPS WELD 113 



Georgiana, Florida. Dalla Torre and KiefFer in 1902 and again in 

 1910 have made the genus a synonym of Ceroptres Hartig. A study 

 of the type and of two congeneric species here described leads me 

 to believe that the genus should be maintained and in this opinion Dr. 

 J. J. Tavares, who has published extensively on the Cynipid guests 

 of the Iberian peninsula and who has examined sketches showing 

 the generic characters and specimens of one of the new species, 

 agrees. The genus may be recognized by the long pronotum which 

 is broadly truncated, by the absence of the two parallel ridges on 

 the face below the antennae which Doctor Tavares says are found 

 only in the genus Ceroptres^ and by the character of the abdomen 

 which is made up largely of tergites two and three whose hind 

 margins are parallel and oblique, forming an angle of about 45° 

 with the long axis of the abdomen; tergite two is highly polished 

 almost bare at base and three is microscopically punctate. The 

 petiole is short and smooth, the ventral spine very short. Radial 

 cell closed, cubitus directed toward lower end of basal. Tarsal 

 claws weak but toothed. 



KEY TO SPECIES OF EUCEROPTRES 



1. Mososciilum smooth or coriaceous rather than rugose without more than 



mere suggestion of transverse sculpture. Anteuna of female 13-segmented, 

 scai>e only infuscated. Tergite III highly polished and under ordinary 

 magnification without punctui'es. Under 2.5 mm. Eastern United States 



and Japan 2. 



Mesoscutum more or less rugulose with evident transverse sculpture. 

 Antenna of female 12-14 segmented. Over 2.5 mm 3. 



2. Mesoscutum smooth, parapsidal grooves obsolete, scutellum disk smooth. 



Segment 3 of female antenna is to 4 as 19: 8 japonicus (Ashmead). 



Mesoscutum coriaceous, parapsidal grooves distinct and percurrent, disk of 

 scutellum rugose. Segment 3 of female antenna is to 4 as 9 : 8. 



primus Ashmead. 



3. Antenna of female 14-segmented, all infuscated, scape nearly black. 



Areolet reaching ore-fifth way to basal. Punctation on tergites III and 



IV very distinct on sides. Transverse sculpture on mesoscutum only 



slight. Length 1.8-3.3 mm., from galls on Q. chrysolcina montanus Weld. 



Antenna of female 12-segmented, scape only infuscated. Areolet reaching 

 one-tenth to one-seventh way to basal. Punctation on tergites III and 

 IV very fine and not conspicuous. Mesoscutum more distinctly trans- 

 versely rugulose. Larger species, 2.9-4.0 mm., from galls on Q. agrifolia. 



maritimus Weld. 



EUCEROPTRES JAPONICUS (Ashmead) 



Ceroptres japonicus Ashmead, Journ. New York Ent. Soc, vol. 12, 1904. p. 78. 



The species was described from three specimens said to be males. 

 One of the types has been lost from the card and the two remaining 

 are females as Dalla Torre and Kieffer suspected. They belong to 

 the genus Euceroptrefi, to which genus the species is here transferred. 



