—43— 



Antcnnoe simple, not verticillate pilose. 



Wings with a smoky submarginal blotch G. (i ) Decatonaa, Sphiola. 



Wings without a smoky submarginal blotch G. (2) Eudecatoma, n. g. 



2. Metathorax much lengthened 4 



Metatiiorax not lengthened. 



Mesolhorax umbilicat.; punctate 3 



Mesolhorax not umbilicate punctate. 



*Marginal vein not longer than tb.e stromal ; abdomen sub-gloiiose ; funicle joints 



with long hairs, but not pedunculated G. (3) Systole, Walker. 



**Marginal vein one and a hnlf times as long as the stigmal. . 



G. (5) Xanthosoma, n. g. 



***Marginal vein three limes as long as the sti^imal ; abdomen long-oyal, ]ietiole 



short; funicle joints .-i.nple, without long hairs . . G. (6) Rileya, Ashmead. 



3. Postmarginal vein distinctly longer than the stigmal. 



JN'larginal vein longer than the stigmal. 



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



Scape much longer than the first funicle join'. 



Funicle joints simple, not pedunculate verticellate-pilose. 



Parapsidal furrows oblitei-ated i>osterior!y ; abdomen ovate, jietiole short, 



thick G. (8) Decatomidea, n. g. 



Funicle joints pedunculate and verticillate -piloje. 



Posterior .tibice with two spurs; parapsidal grooves, comph-te, di,-.tinct. 



Abdomen trigonate, sub-compressed G. (9) Eurytoma, Illiger. 



Abdomen ovate, sub-compressed G. (10) Eurytomocharis, n. g. 



Posterior tibise with one spur G. (11) Phylloxeroxenus, n. g. 



Postmarginal vein twice as long as the stigmal G. (13) Evoxysoma, n. g. 



Marginal vein not longer than the stigm.;il. 



Postmarginal vein hardly as long as the stigmal ; abdomen ovate, petiole shorter 



than posterior coxce ; funicle joints oval, with long hairs 



G. (12) Bruchophagus, n. g. 



Postmarginal vein longer than the stigmal ; abdomen subgloljose, petiole longer 



than posterior coxa', funicle joints o! anteimi^e oval, pilos' 



G. (4) Systolodes, n. g. 



4. Petiole of abdomen very short 6 



Petiole of abdomen long. 



Marginal vein not as long as the stigmal 5 



Marginal vein longer than the stigmal. 



Mesothorax, unless otherwise stated, more or less umbilicate punctate. 

 Postmarginal vein distinctly longer than the stigmal ; funicle joints pedunculate 

 and verticillate-pilose. 

 Pedicel not longer than the first funicle joint. 



Metathorax sloping, rounded behind G. (14) Isosoma, Walkei-. 



Metathorax quadrate, abruptly truncate behind 



G. (15) Isosomorhpa, n. g. 



Pedicel longer than the first funicle joint ; me.sothorax smooth, polished 



G. (16) Isosomocharis, n. g. 

 Postmarginal vein longer than the stigmal ; antennre slender, filiform, pubescent; 

 abdomen clavate. slightly compressed, a little longer than the thorax ex- 

 clusive of the petiole G. (19) Aiolomorphus, Walker. 



5. Funicle joints not pedunculated, long, cylindric, about five times as long as wide, 



pilose ; mesothorax umbilicate punctate (r. (17) Isosomodes, n. g. 



6. Postmarginal vein shorter than the stitrmal, one-third the length of the marginal ; 



antenna; verticillate-pilose ; head and prothorax shining and somewhat smooth . . . 



G. (18) Philachyra, Haliday. 



