So I am spending a few days in the south of Nam again and have been finding a lot more of the same species posted earlier in the topic, so I didn't even bother photographing them.
But, over the weekend I did manage to get a lifer! Went cruising a lot earlier than usual, and at 18H30 I saw a Psammophis in the road. It was quite cool so he wasn't too active and I simply pulled over and slowly walked over and tailed him. That is when I noticed that this was not the typical notosticus or trinasalis.
I didnt bring my snake books down with me as I am able to ID most indigenous herps, but this one had me stumped. I could see that it is Psammophis, but I could not ID the species.
After sending a few pics to some friends with field guides handy, we concluded this is P. trigrammus. To be honest, I have not seen pictures of this species except for field guides. Most of the pictures on the net are mis-IDs. So this was a great find for me! After herping an area for so long, it's not often you get to find a new species.




And just a bad picture showing the typical posture of the entire genus, moving with the head raised.

"I am dying by inches from not having anybody to talk to about insects." - Charles Darwin