— 42 — 



ANALYTICAL TABLE OF THET GENERA. 



Eeiiiales. 



Wingless 5 



Winged. 



Margmal vein linear , . ■ 2 



Marginal vein tliick, quadrat.-. 



Wings with a dusky submaiginal lilotcli G. (I) Decatoma, Spinola. 



Wings witliout a dusky submarginal blotch G. (2) Eudecatoma, n. g. 



2. Metathorax much lengthened 4 



Metathorax not lengthened. 



Mesothorax umbilicate punctate 3 



Mesothorax not umbilicate punctate. 



*Marginal vein not longer than the stigmal, abdomen sub-idoliose 



G. (3) Systole, Walker. 

 **Marginal vein one and a half times as long as stigmal. abdomen conic-ovate. . . . 



G. (5) Xanthosoma, n. g. 

 ***Marginal vein three limes as long as the stigmal ; abdomen sub-comjiressed . . . 



G. (6) Rileya, Ashmead. 



3. Postmarginal vein distinctly longer than stigmal. 

 *Marginal vein always distinctly longer than the stigmal. 



Scape equal in length to the first funicle joint G. (7) Bephrata, Cameron. 



Scape much longer than the first funicle joint, 

 rt Posterior tibiae with two spurs. 



Parapsidal furrows obliterated posteriorly G. (8) Decatomidea, n. g. 



Parapsidal furrows complete, distinct. 

 /' Pedicel much shorter than first funicle joint. . .G. (9) Eurytoma, lUiger. 



bb Pedicel longer or at least as long as the first funicle joint 



G. (10) Eurytomocharis, n. g. 



rtrt Posterior tibia; with one spur G. (11) Phylloxeroxenus. n. e- 



**Marginal vein n(.)t longer than the siigmal. 



Abdomen ovate, pointed, compressed G. (12) Bruchophagus, n. g. 



Abdomen sub-globose, fourth segment longest, enclosing the following 



G. (4) Systolodes, n. g. 

 I'ostmarginal vein twice as long as the siigmal. 



Abdomen much lengthened, conic-ovate, cylindric, fourth segment as long as all 

 the others together G. (13) Evoxysoma, n. g. 



4. Marginal vein longer than the stigmal. 



Mesothorax more or less umbilicate punctate. 



Postmarginal vein about same length as stigmal, or slightly longer. 



Pedicel not longer than the first funicle joint. 



Metathorax sloping, rounded behind G. (14) Isosoma, Walker. 



Metathorax quadrate, abruptly truncate behind 



G. (15) Isosomorpha, n. g. 



Pedicel longer than the first funicle joint ; mesothorax smooth, polished 



G. (16) Isosomocharis, n. g. 

 Marginal vein not as long as the stigmal. 



Postmarginal much lengthened G. (17) Isosomodes, n. g. 



5. Mesothorax smooth, polished G. (iS ) Philachyra, Haliday. 



Males. 



Marginal vein linear 2 



Marginal vein thick, quadrate. 



