Here is a phasmid resource, Care sheet
(Eurycantha calcarata), courtesy of Chris Pull:
PSG22 Eurycantha calcarata
Common
name: Giant Spiny/Papua New Guinea/Spiny Devil
S/I
Subfamily:
Eurycanthinae
Origin:
Papua New Guinea
Adult
size (mm): F-125 M- 100
Food
plants: Bramble, Ivy, Oak, Laurel, Hypericum…these
eat almost anything
Description:
Large spiny species. Dark chocolate brown, verging on black.
Sexes similar, males smaller, and have two very large spines
on their two back femurs, used defensively. Their two back
legs are very muscular because of this. Females are much
more gentle than males, and don’t have the two femur
spins. However, they do have a ovipositor for burring their
ova. These are large and grey-brown.
Comment:
Not recommended for young children due to the aggressiveness
of males, although they are usual quite placid, providing
gentle handling. If there are more males than females, then
they will fight for dominance. They spend all day piled
on top of one another in dark places. Keep humid and warm,
and provide a substrate or a box filled with substrate that
is suitable for the females to lay ova- this will also aid
in keeping up humidity. Males, as mentioned previously,
are very territorial and one will usually be dominant, often
the largest. When I clean them out, my dominant male will
always come out to see what I’m doing. They like to
drink, and some recommend providing a dish of water, however,
I only spray heavily once a week.
Thanks Chris!