06 GENERA OF HYMENOPTEKA. 



!t.— Anteiniffi 8-jointed ; parapsidal sutures plain : middle tibial spur modcrati'ly 



long Aphelininse. 



AnteniifE 10-13-jointed. 



Antt'iiua' 10-jointi'd, inserted just above the nidutli. muiidcd and jiroduced 



at apex ; abdomen almost sessile Pireninse. 



Antennae 12-13-jointid. 



AuteuniB 12-jointed, funicle 5-jointed ; prothorax very sliort, scarcely 

 visible in the middle; submarKinal vein subanjiulate, stijimal club 

 often large; abdomen almost sessile ; iiarai>sides of mesothorax dis- 

 tinct Tridyminae. 



Auteuuiu 12-joiuted; abdomen distinctly petiolate ; occijiital line com- 

 plete Spalang-inse. 



Antennae 13-joiute(l. chili ^-jointed, ring Joints 2: occipital line not 

 complete Pteromalinse. 



Section MICROCENTKI. 



Antennie at most 9-jointed ; tarsi 4- or 3-jointed -i. 



Antenna* many Jointed, funicle (j-jointed ; tarsi 9 ~>-jointed....Tetracampiri8e. 



2. — Tarsi 4-Jointed o. 



Tarsi 3-Jointed ; pubescence of wings arranged in lines-.Trichogramminae. 



3. — Submargiual vein not broken, jjostmarginal distinct, submarginal furnished 



with many bristles; posterior XUnm sometimes with two s])urs; pro- 



tluu'ax large 4. 



Submarginal vein broken, costal cellule narrow, postmarginal and stigmal 

 short, the postmarginal sometimes wanting ; (losterior tibiic with a 



single spur; antennae % simple 5. 



4.— Abdomen usually with a distinct i)etiole ; mesothoracic parapsides very dis- 

 tinct; antenna' inserted below the middle of the face, simple in % . 



Elachistinse. 

 Abdomen with a transverse, smooth and conspicuous jtetiole; mesothoracic 

 parapsides not defined, or indicated only by vei'y slight grooves. 

 Posterior coxae very large and strongly compressed ; head semiglobose, 

 front deeply, sparsely punctate ; antenna % flabellate..Elasmin£e. 

 Posterior coxa normal; postmarginal and stigmal veins rather long; an- 

 tenna % often flabellate Eulophinse. 



r>. — Submarginal vein with two bristles or it is ornate : mctapleura very small; 



scutellum with two bristles near the middle Entedoninse. 



Subnuirginal vein with from 1 to 5 bristles; metai)leura triangular, not small ; 

 postmarginal vcnn usually absent ; scutulhiiu with tour bristles, all 

 behind the middle, often with two longitudinal impressed lines; ab- 

 domen sessile Tetrastichinee. 



Tabl€ of Genera, 

 Section MACROCENTRI. 



Sul)family LEUCOSPiDiNiE. 



Ovipositor curved over the dorsum of the abdomen ; anterior wings folded ; tarsi 

 .5-jointed ; jiosterior femora much swollen ; anterior tibiic armed with 

 a large curved spur liCiK'ospiw Ial>i\ 



