1. There is also an intermediary organ and a tympanal organ . 2. Their tympanal organs are partly imbedded in the thorax. 3. In the Noctuoidea, the metathorax is modified with a pair of tympanal organs . 4. Adults have tympanal organs at the forewings'base, enabling them to hear well. 5. In the order Coleoptera, tympanal organs have been described in at least two families. 6. Some insects possess a tympanal organ . 7. They have distinctive paired tympanal organs at the base of the abdomen ( lacking in flightless females ). 8. In these groups, the sound-detecting tympanal organs are located on the tibiae of the front legs. 9. The tarsus has three segments and the tibia of the front leg bears the sound-detecting tympanal organs . 10. All characters supporting the Cathariinae are reductions : the chaetosemata, male gnathos, and female tympanal organs are reduced.
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