Sunday, August 7, 2016

183: Ceriagrion pallidum Fraser, 1933

Number: 183 / Family: Coenagrionidae / Genus: Ceriagrion   
Species: Ceriagrion pallidum Pale Marsh Dart*   
Habitat: Forested Ponds  
Province(s) sighted: Khon Kaen, Chaiyaphum
Sightings (by me): Rare 
In flight (that I have seen): July - September    
Species easily confused with: Ceriagrion fallaxCeriagrion indochinense

*As there is no common name, I have used 'pallid' from the species name and given the genus the name 'Marsh Dart'.

A species I had been looking for at Phu Khieo WS for two years, has at last made an appearance. However, maybe I have seen it before, but simply overlooked it. At first glance it looks a lot like a young male C. indochinense or a young C. fallax (though I haven't yet seen this species at this location). However, luckily for me, it was actually the former species that helped me to ID it. Thanks to help and information from Noppadon Makbun, I knew it was similar to C. fallax but much paler. Then, yesterday, two male C. indochinense harried a slimmer much paler specimen into the reeds and it just looked different. I wasn't sure but following closer inspection and a few photos, it was in the bag: Ceriagrion pallidum was mine. It is exactly as the description and alongside C. indochinense, it is fairly easy to separate. Fortunately, I even managed to spot other males at different ponds and several females even made an appearance. Better still, this species is fairly easy to approach and not skittish like similar species in the genus. Now I just need to find C. nigroflavum (if it is actually now present in Thailand) to complete the "set" of known Ceriagrion species in Thailand, though there are more I am sure.

I would just like to add that I believe this to be more common and should be at different locations, though it is most definitely easy to overlook. Next time you see a pale specimen, don't simply pass it off as an immature C. indochinense or C. fallax. Take a closer look and you never know. 

The Male
As you can see, it is similar to other yellow species in the genus but is a little more pale as with the common name I gave, the Pale Marsh Dart. It also has a blacked tip to the abdomen, but like the rest of it, it looks washed out. Another feature are the small dots on the thorax of both the male and the female.


The 'Teneral' Male
Here is a freshly emerged male, which I actually saw at the start of July, though I couldn't confirm it was correct until I found mature males. That said, it isn't really that different from the mature males, just even paler.


That said, here is another newly emerged male I saw at Phu Wiang National Park in Khon Kaen, which I dismissed as a young C. indocchinense for about a year. 


The Female
This female looks like a typical Ceriagrion female. However, these colours, though subtle, are quite unique for the genus. It also has very pale olive-coloured eyes. Though it still has those little specks/dots on the thorax.


The 'Young' Female
Now, I could be wrong. This could be the older female than the one above. I am not sure. However, the abdomen on this one is quite pale and the thorax is greenish. Any guesses?


The species keep on coming .... at Phu Khieo WS


Location: Phu Khieo Wildlife Sanctuary, Chaiyaphum
Date: Saturday 6th August, 2016
Habitat: Mid- to upland forested ponds (many temporary)

First of all, I haven't been able to get out as much as I would like recently and it can be frustrating. However, needs must and I can't turn down work. Unfortunately, this work is eating right into the best part of the season. Worse still, it seems as though another species turns up during every trip. If I could get out there even more, I would be approaching that magical 200 sooner, I think. Anyway, rant over and on with yesterday. It had been pouring down with rain all week, sometimes it was torrential, and I was in two minds whether to even go or not. August is a particularly bad month for rain and I never seen to get to go out. Therefore, at the last hour I set out regardless, totally unperturbed. I even set out later than usual, at around 5.30am (instead of 4.00am) with the idea that by the time I arrived, the dragons would have too. Unfortunately, it was raining upon arrival and making my way to the summit was slower than usual. I checked out a few ponds at the lower reaches and only saw a couple of common species, though I did see a freshly emerged Gynacantha subinterrupta which, by the time I had assembled my camera gear and crept back down the banking and into the water, had gained enough energy to flutter up into the canopy. Note to self: set up before you enter the park!!!

The other small ponds on the stretch between the entrance and the River Phrom housed the usual suspects and nothing really to report. One of my aims was to scour the river as it was the perfect time. However, upon reaching the river at the bridge, I glanced and quickly moved on. It was heavily swollen and bombing through. There was no chance of seeing anything and it looked rather dangerous. So, a pond day it was. This became the turning point of the day as I am getting familiar with many of the small ponds on the way up. There is one that is set back and I only know it is there from memory. It is hard to find in all honesty and I fell upon it by chance. After following a couple of spreadwings species hoping that one of them was the elusive L. dorothea (which none of them were), I saw two male Ceriagrion indochinense harry a slightly smaller, slimmer and much paler specimen into the reeds. Was it? Could it ... naaa? I checked anyway. And there it was: Ceriagrion pallidum, a species I had been looking for now for two years. It was recorded from the park once previously and is the only known place in Thailand. I was over the moon to say the least. Better still, I saw a second male and then a female. Both of which were happy to pose and were not skittish like most from the genus. Clicking my heels, I searched around the rest of the little pond and I was instantly shocked again. Right before my eyes was the tiniest red dragonfly I had ever seen. Much smaller than I ever imagined, but there it was: Nannophya pygmaea. A real lifer for me. It didn't hang around long so I searched the place for another male or even the female for a couple of hours, but to no avail. So I moved on. Two new species for my records under my belt and I was really happy. I continued up to the top searching for Gynacantha species and any other species I could find. Other than spotting numerous Orolestes octomaculata, a few O. selysi and got decent shots of a Tramea transmarina euryale copula, it was just the usual species. However, I did manage to spot C. pallidum at several other ponds, but were in small numbers, so there seems to be a healthy population. As for N. pygmaea, it is a rare species at the best of times. In NE Thailand it may be even rarer. In terms of seeing it again and its female counterpart, only time will tell.

My best shots of the day:

Tramea transmarina euryale, the female had been invaded by parasites, though it didn't seem to affect performance.


Introducing Mr. and Mrs. Ceriagrion pallidum. Not sure if natural photos have ever been taken of this species in the wild, but here they are now anyway. At first glance, it could look like one of several species.



A lifer for me, gone in a flash. Nannophya pygmaea. Now I know it's here, I WILL find it again and the female.


A few other usual suspects




Sunday, July 3, 2016

182: Orolestes selysi McLachlan, 1895

Number: 182 / Family: Lestidae / Genus: Orolestes    
Species: Orolestes selysi / Large Dark-banded Spreadwing*   
Habitat: Forested Ponds    
Province(s) sighted: Chaiyaphum
In flight: July-August / Sightings (by me): Rare 
Species easily confused with: Oroletes octomaculata

*As it didn't have a common name, I based the name on the Thai name 'Large Dark-banded' and the common name for Lestidae 'Spreadwings', so the 'Large Dark-banded Spreadwing'.

There are times when you have to question all those hours of your life spent being torn to shreds by nasty bushes, wading through treacle-like mud, waste deep in putrid water, bitten to death by leeches, mosquitoes and horseflies, as well as those long, arduous and expensive journeys. There are other times when it makes the bad times simply melt away. And last Saturday was one of them. I finally managed to see the fabled Orolestes selysi - a stunning damselfly that was the stuff of legends as many of the rarer species at Phu Khieo (and the rest of NE Thailand) seem to be. Though it is found in several countries, it seems to be a very rare species in Thailand. When, after all this time, I managed to spot one dangling from a tree overhanging a gloomy and temporary pond I was over the moon. Amazingly, like buses, I then noticed another and another. In fact, I saw three at this pond and two single specimens at other ponds. It must simply be a good year for them. Another thing of note was the fact that Orolestes octomaculata was also very much present (I am confident this species is around all year now) and they co-habit ... I was amazed to spot a male of each species on a branch, but was just too late to get a shot. The question is now whether there are hyaline specimens here too. According to Noppadon Makbun (the man who had said it was reported from Phu Khieo and encouraged me to find it), it is only known from this location in Thailand... hopefully it will be found again soon at a different location. Until then, I can now sleep happily, safe in the knowledge that I have photos of another rare species in Thailand. Roll on next weekend for more torture to my body for moments of true joy! Since then, I have seen this species a few times over the years, though still not common at all.







Here is the incredibly rare hyaline male. It can be separated by the dorsal blue streak around S3-4 of the abdomen. I managed to spot two males at a small pond and one shot each and they made a dash for the top of the tree canopy. Until next year, my friend, when I will get improvement shots!


Courtship Behaviour
This is my only shot of a female so far. Though obscured in the picture, the blue streak on S3-4 on the hyaline male was clear in the field. Identical courtship behaviour as its cousin. The female is gouging out holes in the bark and inserting eggs, while the male is guarding.

181: Gynacantha basiguttata Selys, 1882

Number: 181 / Family:  Aeschnidae / Genus: Gynacantha     
Species: Gynacantha basiguttata / Spoon-tailed Duskhawker   
Habitat: Forested ponds  
Province(s) sighted: Chaiyaphum  
In flight: July / Sightings (by me): Rare (two males)  
Species easily confused with: Gynacantha saltatrix; Gynacantha bayadera

There are definitely several species of Gynacantha that reside in Phu Khieo WS, but they are incredibly difficult to locate. That's why I was really happy to spot three species in one day, one of which is a new species for my records in the shape of Gynacantha basiguttata. Known commonly known as the Spoon-tailed Duskhawker, it is a large species that I spooked out of his hiding place which was deep inside tall reeds overhanging a temporary pool. Incidentally, the other two species I saw were G. subinterrupta (a first for me here) and G. saltatrix (another first for the place). According to the records, G. bayadera is also present and Noppadon Makbun believes G. phaeomeria to be there also. Seeing all five species there would be amazing. Hopefully one day, especially if I keep trawling the little swampy ponds all the time. I have seen two males, so assume it is quite rare/hard to find.

The Male
The fully mature male is rather beautiful with a green head, a green-blue thorax and greenish markings along the abdomen. It is a large species and incredibly skittish, but the key to ID is the 'spoon-shaped' appendages which give it its common name.


A great day at Phu Khieo WS



Location: Phu Khieo Wildlife Sanctuary, Chaiyaphum
Date: Saturday 2nd July, 2016
Habitat: Mid- to upland forested ponds (many temporary)

The saying goes, it never rains but it pours. If you had visited Phu Khieo WS on Saturday, I think you would have really understood what that meant - on two levels. The first level was literally the weather. It had been pouring down every day during the week; so heavily floods abound throughout Thailand which cast doubt over my trip. However, with a little persuasion from my brother (not that I needed much), it was game on. At the sanctuary, though it had been clearly ravaged by the rains, it only rained slightly all day. The second level were the dragons themselves. Though in small numbers, I still managed to find two new species for my records (along with a possible third). Something I haven't managed to do in NE Thailand for a long time. So, why am I spotting additional species now that I didn't spot last year? Simply, it's all about location. Previous trips took me to some of the more obvious locations: enormous marshy areas, rivers and streams and other easy to spot ponds. This trip, however, was all about hunting for new areas as much as it was spotting any dragons themselves. My brother even led me to a great-looking stream which runs deep under canopy cover which he told me has a decent and exposed waterfall along it. I will be visiting there the next time the weather picks up and isn't so dull. Other than that, it was stopping en route to the top every few hundred meters whenever I saw a pond or ditch (no matter how small) or even if I could make out tall grassy reeds further back I would investigate. Did it pay off? You bet it did, though I tore my body and clothes to shreds and was bitten heavily by mosquitoes and horseflies. I missed the first few ponds at the bottom  (there are so many all the way up) and decided to start about half way. It was still early and the initial ponds were quiet, especially as there was light drizzle. As the weather picked up, so did the sightings of the regular species, though numbers were very small. About 3/4 of the way up, I noticed a temporary pond that looked devoid of life and was about to drive on when in the corner of my eye I spotted something with black wings. I knew what is was straight away: Orolestes selysi, a simply stunning species I had been told had been seen at the sanctuary, but after many trips I thought it was a mythical creature (in Thailand anyway). It is known from several countries, which now includes Thailand. I am not the first person to see it here, but had to see it to believe it was here, if you get what I mean. Amazingly as I photographed the first specimen, I noticed a second. I investigated the rest of the pond searching for the female, but only managed to spot a third male and a young female Gynacantha subinterrupta for the first time at the sanctuary, boosting the species list even more. I moved on, clicking my heels as I went. As I reached the road, I caught up with my brother who was having a very quiet day on the bird front. He photographed O. selsyi specimen too just for good measure. Moving on, I hit many more ponds without seeing much. Then, at one pond, I was following a Lestes copula, I must have disturbed a large Aeshnid, which flew out from where it was resting and flew up into a tree. It was large and I knew straight away it was one of the two Gynacantha species there that had eluded me after all this time. It turned out to be Gynacantha basiguttata and I was extremely happy (the other species is G. bayadera). Moving on, I visited many more ponds without success and eventually reached to top. Instead of searching the top, I simply turned around and worked my way back down doing the same thing. I didn't manage to see any more new species - or did I? One species I have been looking for since the day I first came here was Ceriagrion pallidum, a rare species known from PK and a location in Laos. Until now it has avoided me. That said, I saw a small dirty yellowish specimen that was too small to be C. indochinense (I have seen hundreds of specimens though it could be that species). Could it be the elusive C. pallidum? Probably not, as the abdomen should be olivaceous, but I can dream. Hopefully it is a completely different species. Even then, to finish the day, I found another Gynacantha species, which is new for me at the sanctuary: Gynacantha saltatrix - a species I see on occasion in Khon Kaen I now wonder whether this species was mistaken for G. bayadera as it is a very similar-looking species. I hope not. Anyway, the sanctuary is really hitting top form and I am getting out there again next week ... hopefully I will see even more species and get a better shot of G. basiguttata.

My best shots of the day:

There are so many males this year, but the females are thin on the ground. I was happy to see this one first thing in the morning
 
Phu Khieo's mythical damselfly that is not so anymore, Orolestes selsyi
 Another new encounter for me - and a beast of one too, Gynacantha basiguttata
 Not rare in Khon Kaen, but the first time I have seen it at PKWS, Gynacantha saltatrix
 The day's conundrum. Is it? Isn't it? It could be a freakishly small Ceriagrion indochinense, but it could be C. pallidum or even a new species entirely.  I must find more of them to prove it.



Sunday, June 5, 2016

180: Ceriagrion malaisei Schmidt, 1964

Number: 180 / Family: Coenagrionidae / Genus: Ceriagrion     
Species: Ceriagrion malaisei / Slender Orange Marsh Dart*   
Habitat: Lowland Forest Streams
Province(s) sighted: Chaiyaphum
Sightings (by me): Rare 
In flight (that I have seen): March    
Species easily confused with: Ceriagrion sp.; Ceriagrion chaoi

*As there is no common name, I have used 'Slender Orange' from the Thai name and given the genus the name 'Marsh Dart', creating the Slender Orange Marsh Dart.

Thanks to Tom Kompier, I am now able to confidently say that I have definitely seen Ceriagrion malaisei. This means that my earlier sighting back in 2011 must now been downgraded to Ceriagrion sp. Although it is very similar, it is, in fact, as different species. C. malaisei has a longer abdomen than the Ceriagrion sp. and there are several differences between this one and C. chaoi. When I visited Ph Ing Waterfall in Chaiyaphum, I managed to spot on one male hiding deep in the grasses. However, it was a blisteringly hot day and was in the middle of a drought. Therefore, I expect t see many more when I return. Likewise, it means I will have to return to a pond (which I will struggle to find) about 5 hours away to get myself a specimen of the Ceriagrion sp. as it is most likely a species yet to be described. What a shame hehe.

The Male
As you can see, the length of the abdomen is noticeably long. Likewise, it seems that the abdomen is slightly two-tone orange. Going back, I remember there being a number of younger specimens that I thought were C. olivacium as they were a rusty reddish colour dorsally on the top. It appears that tey are actually juvenile males. I must return one day. 



Not the best shot in the world, but enough for a positive ID.


Once again, many thanks to Tom Kompier for the ID.

A trip to Phu Kao - Phu Phan Kham National Park (Khon Kaen)

Location: Phu Kao - Phu Phan Kham National Park, Khon Kaen
Date: Saturday 28th May, 2016
Habitat: lowland, shallow lake on the edge of some decent forest

As we all know, trying something new doesn't always pay off. And this little trip was neither a new location nor did it yield any new species for me. However, I had only visited once before really early in the season and I saw quite a few decent species. Therefore, I thought it was high time to return. Unfortunately, all those earlier species had vanished and there were very few species to be seen at all. The location was almost identical to that at Nam Phong (shallow yet large lake surrounded by lowland forest - and is within the same strip of forest) and I expected to see Sinictinogomphus clavatus phaleratus. It duly delivered. It is most certainly an uncommon species in Thailand, yet within ten minutes of looking, I found one of the large beasts perched on a solitary stick about five metre out in the water. Creeping up to it and getting decent photos, however, is a completely different thing. Though it is a massive species, it is incredibly skittish and is easily spooked. One wrong move, going a little too close or even blinking at the wrong time and it has already taken off before you have a chance to photograph it.

That said, unlike at Nam Phong where it seems quite scarce, it was most certainly abundant here. Failed attempt after failed attempt, however, nearly got the better of me. And with that horrible blistering Issan sunshine, I was already wilting by 10 am. However, thinking about my many failed attempts from previous trips, I marched - or rather crept - on. Eventually, I managed to get close to one specimen and it simply didn't move. Instead, he was happy to perch on his stick even with me near him. I was amazed, but seriously happy. I got my photos of the male at last and was even lucky to spot and photograph a female ovipositing, closely guarded by another male. Other than this species and many specimens of Epophthalmia frontalis whizzing around the lake, but all in flight and NEVER perched (as always) and that was it. I am sure there are more species there, but I spent all my time on S. clavatus.

My best shots of the day:
A decent shot of the female in flight (she kept on pausing like this to produce eggs).
She then swooped down and literally smashed her abdomen into the water's surface with a loud splash.
All the while, the male was guarding here closely from above