The eggs of cicadas are longer than broad and oval in shape.
The females have a saw like ovipositor with which they dig a hole/crevice in some plant material.
All known cicada eggs are inserted into plant material.
Normally this is either the plant species the larvae will be able to feed on, or a plant near to the larval food plant.The female takes some time to create her nest and in areas where cicada populations are high partially constructed and abandoned nests may be found in various stages of construction.The British species is Melampsalta montana (was Cicadetta) which is widespread outside of the UK and occurs up to 61 north. Of the three species (called Decim, Cassini and Decula for short) Decim is the most common in the north of their range, Decula is rare all over and Cassini is most common in the Mississippi valley.It seems to prefer pines, though old larval skins exuviae have been found on grass stems and occasionally Bracken Pteridium aquilonia. In addition to this, the 13 year broods tend to be centrally placed within the Cicadas distributional range and the 17 year forms are found more to the North, East and West.Copulation as not often been observed in many species, female Melampsalta leptomera a New Zealand grass laying species, has been observed to mate successively between egg laying bouts.
Copularion takes about 1 hour in Cicadatra querula.
Cicadas are mainly warm-temperate to tropical in habitat.
There are 202 species in Australia compared with about 100 species in the Palaearctic and only one species in the UK.
The eggs turn salmon pink prior to hatching and the nymphs are normally a similar colour on hatching.
Females of Magicicada septendecim can be observed testing the tree they are on for suitability before laying eggs.
Presently there are 12 known broods for the 17 year cicadas and only 3 known broods for the 13 year cicadas, meaning there are only 15 observed emergences.