Andean Phasmid

About 4 cm long, glossy black with orange sections on the abdomen underside fringed by a pale purple section; dark red head and antennae, legs also with a dark red tinge. It seems to be a female holding an egg in the tip of its abdomen, which was curled over the body. I was surprised to find a larger insect at this altitude (about 4000 m), particularly due to the cold temperatures.