It is difficult to take out a Mantis that is making a cave in a coral full of Christmas trees as difficult to discriminate where the click comes from. I used a lantern (at night) so the Christmas trees hides for a while and I look at every hole or cavity in the coral.
After see the two exorbitant eyes I tried every thing even traps... nothing works so I decided ELECTRIFY that THING!
I used a direct current (d.c.) power supply and telephone type wires, one wire inside the cave, the other at the back side. First I tried with 5 volts then whit 12 volts, and the Mantis came out of the cave. I think they have good memory cause did not return to the cave and I caught it!
As you do not know the resistance of water just let one wire inside the cave and connected to one terminal of the power supply, the other wire as back as possible (but not so far) from the cave and just touching quickly the other terminal of the power supply to avoid burning it. Remember also that electricity will separate salt in Na and Cl. Good Luck.
After see the two exorbitant eyes I tried every thing even traps... nothing works so I decided ELECTRIFY that THING!
I used a direct current (d.c.) power supply and telephone type wires, one wire inside the cave, the other at the back side. First I tried with 5 volts then whit 12 volts, and the Mantis came out of the cave. I think they have good memory cause did not return to the cave and I caught it!
As you do not know the resistance of water just let one wire inside the cave and connected to one terminal of the power supply, the other wire as back as possible (but not so far) from the cave and just touching quickly the other terminal of the power supply to avoid burning it. Remember also that electricity will separate salt in Na and Cl. Good Luck.