Phasmida Leaf Insects, Stick Insects Walking Sticks, stick-bugs

About

The Phasmatodea (also known as Phasmida or Phasmatoptera) are an order of insects, whose members are variously known as stick insects (in Europe and Australasia), stick-bugs or walking sticks (in the United States and Canada), phasmids , ghost insects and leaf insects (generally the family Phylliidae). Phasmids are not to be released in the USA. We obtain certain species for entomology research and university studies only Diet: All known Phasmids are herbivorous. Some species are known to eat a wide variety of leaves, while others are likely to have a much narrower diet. In captivity many species can be reared using plants from the family Rosacae (especially Bramble), Oaks, Hypericum and Eucalyptus . Eggs The female often drops the eggs randomly, although some species bury their eggs in the soil, glue their eggs to an appropriate surface, or pierce them into a leaf ( Asceles sp .). In general, the female will lay in excess of 100 eggs, with some species laying several thousand. The eggs may hatch in as little as a few weeks, while in captivity some can take over 18 months to hatch. The capitulum of some species is attractive to ants, perhaps giving the eggs additional protection if the ants carry them into their nest. Nymphs Phasmids undergo an incomplete metamorphosis, with the young nymphs resembling miniature (albeit wingless) adults. Like all insects, Phasmids have an exoskeleton and growth is achieved by the periodic shedding of this external layer and expanding the new, larger, skin underneath. This process is known as moulting or ecdysis. Phasmids generally moult between 4 and 8 times. The female often undergoes one more moult than the male. Eurycantha calcarata ssp. (PSG 44) moulting Adults Adult insects are the only stage to have fully developed wings, although wings are often absent in the female or in both sexes. Mating takes place with the transfer of a spermatophore. Parthenogenesis (the ability for the female to lay fertile eggs without mating) is well