As night was falling, a rumbling thunderstorm moved in from the west. Common True Katydids were calling raucously from the oak woods in back of my house with temperatures in the low 80s. The interplay of the storm and the katydids was a delight to my ears. Featured here is a portion of that recording. Listening with headphones will put you right in the midst of the action.
Common True Katydids are among the loudest of our night-time singing insects. They are flightless, having to walk from tree-to-tree through the vegetation or on the ground. Severe storms can dislodge a number of these large katydids and send them to the forest floor. Looking for them after a very windy storm may yield a number of these handsome creatures walking along the ground in search of a tree to climb.
The harsh, rattled call of the males, ch-ch-ch, is familiar to most anyone who lives within their range. Groups of males in one tree will often alternate singing with another group of males singing in a neighboring tree, thus creating a pulsating cadence.
I hope that you enjoy this interesting recording of these night-time chorusers.
Common True Katydids singing during an approaching thunderstorm. Recorded by Wil Hershberger, July 31, 2012 in West Virginia.