Sunday, 22 November 2015

The male of Gynacantha basiguttata and a male G. japonica thrown in

November 21 I went to Huu Lien to look for the enigma Planaeschna cf. guentherpetersi again, but did not see it. I did catch an Aeshnid that passed overhead in the forest and was very happy to find it was a splendid male Gynacantha basiguttata. I had caught the female a few weeks back too. Apparently it is not that rare inside the forest. The other cool thing I saw was a communal roost of Cratilla lineata. I had seen that in Potamarcha congener, but this was new knowledge to me. At least 15 bundled together on a hanging twig.

On November 22 I went to Xuan Son and looked for the small pale-faced Planaeschna there. I did see one female, but failed to catch it. It was mostly an uneventful day, but I saw a few Gynacantha japonica and was able to take some pictures. Another unexpected species was Trithemis pallidinervis at the river crossing, which I had not seen this far north. And a fine male Ceriagrion bellona was another nice one. Not at all that common, although regular at Xuan Son.

Very fine male Gynacantha basiguttata, note the dark wingbases.

Scan of the same male. Note the long and slender epiproct and the wingbases.

Pretty male Ceriagrion bellona

Gynacantha japonica, note the pale epiproct.

And a surprise female Trithemis pallidinervis

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