238 MKMOIKS OF THE f'ARNEGIE MUSEUM 



5. Scutellum«o/ flat, usually convex or at least subconvex, and usually, but not always, without longitudinal 



grooved lines C 



Scutellum flat and broad, quadrate, with Hvo longitudinal grooved lines. 



Metallic ; flagellum filiform, the joints of the funicle at least twice as long as thick ; ocelli ob- 

 tusely triangularly arranged Idarnes Walker (type I. carme Walker). 



Non-metallic ; flagellum subelavate, the joints of the flagellum not or scarcely longer than 



thick ; ocelli arranged nearly in a straight line Koebelea Ashmead, g. nov. 



(type A', auslraliensis Ashm.). 



6. Ovipositor shorter than the body and sometimes not at all prominent ' 11 



Ovipositor longer than the body ; funicle of antennse 5-jointed 7 



7. Abdomen with the ventral segments normal, not widened downwards 8 



Abdomen with the ventral segments wideJied downwards. 



Hypopygium very prominent, plowshare shaped ; antennre 12-jointed, with 2 ring-joints. 



Goniogaster JIayr (type G. variiconiis Mayr). 



8. Mesothoracic furrows distinct, complete 9 



Mesothoracic furrows not distinct, wanting posteriorly. 



AntenniB 11-jointed, with one ring-joint inserted much nearer to the front margin of the bead 

 than to the middle ; stigmal vein long, nearly three fourths the length of the marginal, 



Sycoryctes Mayr (type S. patellaris Mayr). 



9. Autennte 12-jointed or less 10 



Antennte 13-jointed, with three ring-joints inserted at an equal distance between the middle and the 



front margin of the head ; stigmal vein less than one third the length of the marginal. 



Trichaulus Mayr (type T. versicolor Mayr). 



10. Antennte 12-jointed with one ring-joint; stigmal vein about half the length of the marginal. 



Apocryptophagus Ashmead, g. nov. (tj'pe Chakis '? explorator Coquerel). 



Antennae 9-joinied (teste Motschulsky) ; abdomen elliptic, much depressed, the ovipositor twice the 



length of the body Platyneura Motschulsky (type P. testacea Motsch.). 



11. Postmargiual vein distinct, always present 12 



Postmarginal vein wanting or never well developed 14 



12. Ovipositor hidden 15 



Ovipositor always prominent or exserted 13 



13. Antennse 12-jointed with two ring-joints, the funicle 5-jointed, inseited near the clypeus, the joints of 



the flagellum fluted ; body metallic ; ovipositor about as long as the thorax and abdomen united 

 or a little longer, and thickened towards apex. Colyostichus Mayr (type ? C. longicaudis 



jMayr, rf Heteradrivm longipes Mayr). 

 Antennie 11-jointed with one ring-joint, the funicle 5-jointed, the club 3-jointed, the joints of the 

 funicle hardly longer than thick ; ovipositor scarcely as long as the abdomen, gradually thick- 

 ened towards apex. Heterandrium Mayr (type c? S. biannulatum Mayr, $ Colyostichns brevicaudis 



Mayr). 



14. Scutellum with two longitudinal grooved Hues, the axillse widely separated ; ovipositor a little shorter 



than the abdomen Sycophila Walker (type S. decaiomoides Walk.). 



Scutellum luithout grooved lines, the axilhe nearly uniting at base of scutellum ; ovipositor only 

 slightly projecting Froggattia Ashmead, g. nov. (type F. polita Ashm.). 



15. Mesothoracic' fui rows indistinct, never complete ; antennic 9-jointed. 



Micranisa Walker (type Idarnes pteromaloides Walk.), 



