The excellent picture below, is other parts of "Cicada Life Cycle" report which is categorised within "Cicada Life Cycle Images", "Cicadas Life Cycle", "Bugs Cicada" and "Cicadas Bugs".
Cicada Life Cycle: Cicadas Insects - Immature periodical cicadas or nymphs develop underground, sucking root plant juices. Within 13 (a 13-year-old cicada) or 17 years (a 17-year-old cicada) in the soil, the mature nymphs emerge and climb right onto some vertical surface or nearby vegetation. After that they molt into winged adults, leaving their shed outer skins (exoskeletons) attached to twigs or tree trunks.
The nymphs have very strong front legs for good digging and constructing an exit tunnel.
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