Giant land crabs are quite rare around Cairns, so I have not provided a detailed location. I have been watching a small colony for 4 years and have detailed ecological notes. In this photo a male is trying desperately to go down a hole, but there is a female inside that will not let him in, so I could get close and take this photo.

I think this is just a color morph of Pteroplatus pulcher (fam. Cerambycidae) that places it in a minor mimicry ring in my region that features blue-black body except for a transverse red slash near the mid-point of the elytra. Other members are a new-genus lampyrid and a Calopteron lycid beetle. Cosanga, Napo, Ecuador

Bamboo Pit Viper (Trimeresurus gramineus Shaw, 1802).

Habitat: It is found in bamboo groves and forests, usually near streams.

The range of this species has been restricted to southern India. It is also rarely seen near Harishchandragad and some other mountain ranges of Western Ghats aka Sahyadris in Maharashtra.

SURPRISED TO SEE SUCH A CASUAL YAWN, THANKS TO OUR CAMERAS THESE DAYS, THEY HAPPEN TO HELP IN SUCH MOMENTS, TAKEN WITH CANON 100-400MM SO HAD PROBLEMS WITH DEPTH OF FIELD.

Odd fellow with incomplete lines. Apparently the coloration is variable, with an example of one with NO lines below:
bugguide.net/node/view/437862/bgimage