Key to the Japanese Calopterygidae. 



A N\'iiiL^s l.,u.zor tlKiU tibdonien, fVoiis projected (onnin- a lar-e inU-vAe. 



B M and M. ariHMo- from a Miml.- pnint on tlu" Ar Minnmeri^ 



BB . and M. widely apart in the shirt !i'h>i»oc>/pha 



AA Wiii-s shorter tlmu abtlomVii. iVon> ixn[ projected. 



B r>o.K ^tour. Nsith the <.ol,,r.ti...i I'nh.opWbia 



BB iMKly sle.Hh.r like an A-rionid. 

 C Sulxitiad.MioU. .lightly hcnr at tiie :,n uhi., . arisinji from the mkldl 



D Qundraimle and busal radial ^l^aee erossc.l I'Aipham 



DD <ina.iranLih' an<l ha^al radial ^pa.v fru- from ei(w^ n.rx nn-^ Iln;,mln 

 CC ^nl..i..Hlr:,no-h' m.arK -traiuht. M and M, ari^n, fro.n the ^.^^er par 



Xevrobasi 



