72 (JKNKKA OF HYMENOPTERA. 



Tli:L'e anteniial joints liefort' tlic cliib of unecjual lenjith. 



Ovipositor exsertod to more tiuin one-third the length of tlie abdomen. 



*Ceiitrodora Fiirst. 



Ovipositor not at all. or but slisrhtly exsertod AplicliiiiiH Dalni. 



3. — Antennal elub only •J-jointed ; hin<l marjiin of jtosterior wiiijrs with very 



long eilia *Kn<>arNiai Fiirst. 



Antennal club :5-jointed ; hind margin of posterior wings witiiont very long 

 cilia C'ov(*opliagu»i Westw. 



Suhtaniily I'ikexix.e. 



Wings with postmarginal and stigmal very short; ventral valvules not reaching 

 to anus: antenuH; short, clavate, at least tlu' first two fnnicle joints 

 anniiliforni. 

 Antennse with two ring-joints: eyes of % strongly converging above. 



^laerogleiiew Westw. 

 Antennic with at least three ring-joints; scutellar frenum horizoiitiil. 



*l*ireiie Hal. 

 Wings with postmarginal and .stigmal veins long ; ventral valvules reaching to 

 aTius; antenuie with one or no ring-joints: ovii>ositor exsertcd. 



^lleiiicctriiN Tiioni. 



Wings with postmarginal and stigmal veins moderately long: ventral valvules 



not reaching to anus; antenme without ring-joints: ovipositor not 



ex.serted; abdomen with a large tuft of hair on each side of petiole. 



Dilo|»liov;a<t('r Ilow.inl. 



Sui)faniily Tridymin.*. 



-Vntennse inserted slightly al)ove the clypeus. which is rounded and i)roduce(l at 



apex: parapsides distinct ^Trid.viilUN Katz. 



.Vuteuua.' inserted at the middle of the front; clypeus not prodiucd ; anieni'.a- 

 with both ring-joints visible. 

 Parapsides plain ; front impressed with many dots. 



Wings ciliate at apex K<Mliiot('IIUN Westw. 



Wings not eiliate ; thorax slightly rugoso-punctate *>iyMla!>iiN Walk. 



Parapsides not plain '^.M«'taKt4'iiiiM Walk. 



Hubtimiily Si'ALAX(iiN,F,. 



I?ody a'ueous; wings with a short marginal vein ^iMOCralllM Fiirst. 



Body wingless, or with a long marginal vein. 



Body not at all or very slightly metallic; frenum not disceniiliic. 



Hody not metallic; mesothorax opa(iui'. [luiictati^ : abdomen conic o-subulate. 



*Tricor.>|»liUN Fiirst. 

 Mesothorax .submetallic. polished. 



Hody winged; metathorax strongly punctate. ...*Oro<*«»|>liHla Westw. 

 Body winged or wingless; metathorax smooth: mandililos of u^umI size. 



TiKMX'olax Westw 

 Body winged ; mandibles very large, three tinu\s the length of tiie head. 



^I'arala'Ntliia (an.. 



Body metallic: antennae inserted in the anterior margin of the oblong head; 



frenum large, distinct MpalaiiKia Latr. 



