Emergence Failure

Failed Ecdysis
The cicadas in this photograph came from a 1990 emergence in a suburban front yard near Chicago. Many of the cicadas in this area had deformed wings.

Cicadas sometimes fail to properly inflate their wings after molting (ecdysis); such individuals can be found in low vegetation in any emergence. There may be a tendency for this to occur more often in certain situations. Possible explanations include crowding (during molting) and use of lawn chemicals.

Failed emergence
Molting can go wrong in other ways too. The cicada in this photograph failed to emerge completely from its nymphal skin. It died partially emerged.