74 (iKNERA OF HYMENOPTERA. 



Tribe C/eonymkles. 



Eyes hairy; labriim tonspicuous ; iiiandililes rather weak; ring-joints of an- 

 tenna; hirtie. 



Body metallic *C'leoiiyiiiiiN Latr. 



Body scarcx'ly nu'tallic; abdomen subrotnnd ; antennse elavate. 



^.tlit'radpluM WiUk. 

 Eyes smot»th ; lal>nnn hidden : mandibles stx'ong, the left 3- and tlie rijiht 4-dcM- 

 tate. 

 i^i'Utellar frenuni with tninsverse inii)ressions ; head with rounded convex 



cheeks ^TrigoiioderuM Wesiw. 



Scutellar frenum without transverse impressions; head triangular, narrow an- 

 teriorly. 



Abdomen sessile *Platygerrlnix Tliom. 



Abdomen with a distinct petiole ^PliutiisniiiM Tlioui. 



Tribe Co/otreehniaes. 



Posterior tibise 2-spurred ; parapsides of niesothorax not at all discernil)le. 



*Colotre(*huu!!i Thorn. 



Tribe Chiropach ide)*. 



Posterior tibiie with two spui-s; wings banded ; marginal vein not thickened. ..2- 



Posterior tibia' with one si>ur '•^. 



2.— Anterior femora exciso-dentate; posterior til)ial s])urs arcuate; wings with 



two transverse bands C'liiropacli.TN \Ve.-;tw. 



Anterior femora simple ; wings with but one band, stiginal club large, hori- 

 zontal *Aerocoriiius Forst. 



:{.— Marginal vein of anterior wings thickeried. 



Antenme with the ring-joii\ts large, not transverse, anterior co.xie sultcy- 



lindrical; sligmal clul) obsolete .^I'aildelUN Forst. 



AnteunsB with transverse ring-joints; cyaneous. 



Stignial and postmargiiial veins short ...^.YletaooluM Fiii-st. 



Stigmal vein longer than marginal; f with anttunal club st\ late at 



apex *Rai»liit*'Iiis Walk. 



Marginal vein of anterior wings not thickened. 



Stignuil club very large: anterior margin of i>rothonix sharp. 



*l>iiiotUM Ft'irst. 



i^tignial club small or moderately so; anterior margin of prothorax 



rounded ^KIlopalicuM Fiirst. 



Tribe Od'atoiniden. 



Posterior tibia' 1-spnrred; anterior femora not enlargeci ; head very large, broad, 

 excavated in front, with two acute tubercles on each side. 



^('ariftoiniiN Dahn. 



Tribe Spheyiyadride^. 



Anterior wings with a delicate marginal vein; petiole punc+.'' j above, longer 

 than broad 2. 



.\iiterior wings with a thick marginal vein; petiole shorter than Jie posterior 

 coxse 5. 



