Monday, June 4, 2012

Nam Nao: A Year in the Making (May)



Location 1: Helicopter Pad Lake, Nam Nao National Park, Petchabun. 
Date: Saturday,  26th May, 2012.
Weather: Overcast for most of the day, then torrential rain (stopping me visiting the headquarters)
Expectations of recording additional species (for my list): Low
Leech bites: 16 (my record, unfortunately!)


A vast improvement over last month's weather, May turned out to be OK. Though it eventually turned to heavy rain (it seems really early this year), I managed to spot four new additions for the year, and one new species for the lake (though I know Noppadon Makbun has previously spotted the species there). New for the year, are: Ceriagrion chaoi, Rhyothemis plutonia, Rhyothemis triangularis and Trithemis festiva. New for the lake is Indothemis carnatica. Like my previous visit, as I was preparing to visit the river at the headquarters, the heavens opened and it would have been a pointless task visiting. I will return in a couple of weeks and make a beeline for the headquarters.

Here are a few decent photos I managed to get last time out:

These are the best natural photos of Rhyothemis plutonia I have taken. He dropped down right in front of me, as the winds picked up. He held onto a strand of grass for dear life ... even though it was extremely windy, these came out very well indeed.




I saw two male Ceriagrion chaoi on this day, and this one was happy to let me shoot away in front of him. Luckily, though it was windy, I managed to get decent shots.



There were many many females of Pseudothemis jorina. I saw more females today than I have seen in all my time in the field. They were very difficult to get anywhere near though.


Nam Nao Helicopter Pad (added species from the last visit, bold; new species for the lake, blue; species not seen from last visit, red)

Fam. Coenagrionidae
Aciagrion tillyardi (Laidlaw, 1919) ♂ ♀ [common]
Agriocnemis femina (Brauer, 1868) ♂ ♀ [common]
Agriocnemis nana (Laidlaw, 1914)  [very common]
Agriocnemis pygmaea (Rambur, 1842) ♂ ♀ [common]
Argiocnemis rubescens rubeola Selys, 1877) ♀ [♂ 2, ♀ 1]
Ceriagrion chaoi (Schmidt, 1964) ♂ [2]
Ceriagrion indochinense Asahina, 1967  [uncommon]
Ischnura senegalensis (Rambur, 1842) ♂ ♀ [fairly common]
Onychargia atrocyana Selys, 1865 ♂ ♀ [extremely common, especially copula]
Pseudagrion rubriceps rubriceps (Selys, 1876)

Fam. Platycnemididae
Coeliccia chromothorax (Selys, 1891)  [2, 1]
Copera ciliata (Selys, 1863) ♂ ♀ [extremely common]
Copera marginipes (Rambur, 1842) ♂ [common]

Fam. Protoneuridae
Prodasineura autumnalis (Fraser, 1922) ♂ ♀ [extremely common]

Fam. Gomphidae
Ictinogomphus decoratus (Selys, 1854) ♂ [common]

Fam. Libellulidae
Acisoma panorpoides panorpoides (Rambur, 1842) ♂ ♀ [uncommon]
Brachydiplax farinosa (Krüger 1902) ♂ ♀ [♂ common]
Brachythemis contaminata (Fabricius, 1793) ♂ ♀ [common]
Diplacodes trivialis (Rambur, 1842) ♂ ♀ [fairly common]
Indothemis limbata (Selys, 1891) ♂ ♀ [♂ extremely common]
Indothemis carnatica (Fabricius, 1798) ♂ [2] 
Neurothemis fulvia (Drury, 1773) ♂  [uncommon]
Orthetrum chrysis (Selys, 1891) ♂ [fairly common]
Orthetrum sabina sabina (Drury, 1770) ♂ [common]
Pseudothemis jorina Förster, 1904 ♀ [common]
Rhodothemis rufa (Rambur, 1842)  ♂ [1]
Rhyothemis plutonia (Selys, 1883) ♂♀ [♂ very common, ♀ 1, part of a copula]
Rhyothemis triangularis (Kirby, 1889) ♂ [♂ 3]
Tholymis tillarga (Fabricius, 1798) ♂ [fairly common]
Trithemis aurora (Burmeister, 1839) ♂ ♀ [extremely common]
Trithemis festiva (Rambus, 1842) ♂ [2]

Next visit: mid June 
(primarily to visit the river at the headquarters)

6 comments:

  1. Brilliant shots and fascinating stuff.

    ReplyDelete
  2. Hi Gerry. Thanks for your comments. I hope I can make a full year ... my first planned research! Take care, Dennis.

    ReplyDelete
  3. Excellent shots of Rhyothemis plutonia, did you manage any shots of Rhyothemis triangularis?

    ReplyDelete
  4. Hi Oleg (I think).
    I didn't get any photos of R. triangularis this time around, as they were scarce. In the next few months there will be lots of them. I did get some good photos of the male at Nam Nao helicopter pad, last year. Hopefully I can improve on them this time round ...

    http://www.thaiodonata.blogspot.com/2011/07/131-rhyothemis-triangularis-kirby-1889.html

    ReplyDelete
  5. OLeg in action here : http://carnivorousockhom.blogspot.com/2012/04/odonata-of-cambodian-coastal-regions-in.html

    ReplyDelete
  6. I love your blog, your style and vibe are great.

    check mine out and follow me back if you like!

    Necessary news center

    ReplyDelete