262 MEMOIRS OF THE CARNEGIE MI^SEUM 



8. Marginal vein always distinctly longer than the stigmal vein, the postmarginal vein well developed, 



sometiines very long 9 



Marginal vein short, not, or scarcely, longer than the stigmal vein, usually a little shorter, the post-mar- 

 ginal vein rarely well developed, rarely as long as the stigmal (in only a single case is it very long) . . 13 



9. Hind tibise with 2 apical spurs 10 



Hind tibias with 1 apical spur. 



Funicle with the joints oval-moniliform ; eyes broadly oval. 



Phylloxeroxenus Ashmead (type Eurytoma phyllexerse Ashm.). 



10. Postmarginal vein very long, fully twice as long (or even longer) as the stigmal vein 11 



Postmarginal vein not much longer than the stigmal vein. 



Marginal vein scarcely longer than the stigmal ; antennae clavate, the club large, 3-jointed, the 

 joints of the funicle moniliform ; abdomen with the fifth segment, as seen from the side, two 

 or more times longer than wide ; head convex in front, the occiput deeply concave. 



Eurytcmocliaris Ashmead (type E. mimda Ashm.). 



Marginal vein very distinctly longer than the stigmal ; antennaj filiform or nearly, at most sub- 

 clavate, not greatly thickened towards apex, the joints of the funicle oblong, cylindrical ; 

 abdomen conic-ovate, subcompressed, the fifth segment, as seen from the side, shorter than 

 wide Eurytoma Illiger (type E. planata Illig.). 



11. Hind tibi;e normal, not dilated 12 



Hind tibiie compressed, dilated. 



Head transverse, wider than the thorax, and thin antero-posteriorly, the eyes more or less 

 rounded, prominent ; antennse inserted far above the middle of the face, the scape very long, 

 reaching far above the ocelli and with a tooth or tubercle at apex beneath, the flagellum filiform 

 with sparse hairs, the iunicle joints more than twice longer than thick ; abdomen very strongly 

 compressed, the petiole long and slender. Eudoxinna Walker (type Sesxetra transversa Walk.). 



12. Marginal vein at least one and a half times as long as the stigmal vein, the postmarginal vein not 



longer than the stigmal ; abdomen conic-ovate, longer than the thorax, the fifth segment nearly 

 twice as long as the fourth ; antennse 11-jointed, the flagellum subclavate, the joints of the funicle 



submoniliform Xanthosoma Ashmead (type A', nigricornis Ashm.). 



Marginal vein not or scarcely longer than the stigmal vein and stout ; antennaj 11-jointed, the fla- 

 gellum clavate or subclavate ; abdomen globose, or short ovate, shorter than the thorax, the segments 

 subequal Systole Walker (type S. albipennis Walk.). 



13. Abdomen short, subglobose, the fourth segment much the longest, enclosing the following. 



Systolodes Ashmead (type S. brevicornis Ashm.). 

 Abdomen ovate, subcompressed (the tip sometimes produced into a stylus), the fourth and fifth seg- 

 ments short, although a little longer than the others, and subequal Bruchophagus Ashmead 



(type B. boreal is Ashm.). 



14. Head with a deep frontal furrow ; abdomen ovate, subcompressed, petiolate, the jietiolc usually not 



short, the fifth segment the longest, but not greatly longer than the fourth. 



Funicle 5-jointed, the joints moniliform or submonilifoiin, the first much shorter than the 



pedicel Decatomidea Ashmead (type D. xanthochroa Ashm.). 



1-5. Non-metallic, smooth, delicately shagreened or umbilicate punctate, raiely finely punctate 10 



Metallic green or blue, coarsely umbilicately punctate. 



Head in front quadricarinate, the carina along the orbits sometimes delicate ; funicle with the 

 joints excised at apex above, with whorls of long hairs Chryseida i^pinola. 



