Dragonfly

my pleasure. :))

dear pamsai, wikimedia may be female. and young male is also yellow. I usually refer this site. :)) http://www.odonata.jp/01live/Libellulidae/Sympetrum/infuscatum/index.html top paragraph describes top photo. (it's similar to your photo) "young adult of Sympetrum infuscatum supposed to move, the photo was taken on 800meters high area, surprisingly they moved to the high area. abdomen of the dragonfly isn't enough red, need more days(or weeks) to mature."

good evening pamsai. :)) this is Sympetrum infuscatum. I found good page. black tip is 1-C, see 2-C to identify. left one is it. :)) http://homepage2.nifty.com/satoyama/Miwakekata/akatombo.htm and other non black tip dragonflies may be 2-A left(Sympetrum darwinianum) or right(Sympetrum frequens). we call them NatsuAkane, AkiAkane. :)))