[2] Exhibiting the sexual dimorphism of many similar insects (particularly other phasmids as well as mantises), males are small and thinner, growing only about 11 cm (4.5 in) in length and have three ocelli.

It adopts a curved pose when it hangs inverted amongst foliage with "its highly procryptic abdomen curled over its back.

[2][12] Newly hatched E. tiaratum nymphs are ant mimics and resemble the insects in whose nest they are born.

Their aposematic pattern—orange head, white collar, the rest black—mimics the ant genus Leptomyrmex and makes them appear toxic.

Although most adult stick insects are notoriously slow, these nymphs are speedy, active, and quickly make their way to the trees.

[13] Parthenogenesis in E. tiaratum appears to occur by automixis with terminal fusion of haploid nuclei from the same individual meiosis resulting in loss of heterozygosity in the offspring.

It is used in laboratories, kept for projects in schools (as is Carausius morosus[2]), and is a popular pet among breeders of exotic insects in North America and Europe.

One breeder advises specifically "For a stick insect with body length 127mm, to keep 2 adult females, you need a cage at least 600mm high, 300mm deep and 300mm wide.

[3] Some breeders in the United Kingdom, concerned with the negative effects of inbreeding on the vitality of their stock, have introduced new genes from abroad.

[14] E. tiaratum are herbivores and although they thrive on Eucalyptus which is their native food, breeders abroad recommend feeding them bayberry, bramble, hawthorn, hazel, oak, photinia, raspberry, rose, and salmon berry (red or yellow) and guava.