[1] The straight-lanced meadow katydid is large and robust for a Conocephalus, ranging from 13 to 30 mm.

It is green and brown in color and has short tegmina (forewings).

Males have long cerci which are tapered beyond the tooth and flattened in their final third,[2] and the ability to bend their bodies at extreme angles.

[1] Their preferred habitat is that of open areas of short grass along roadsides and in pastures, and they are usually found in clumps of large numbers.

The Straight-lanced Meadow Katydid's song is a faint purr at 10–20 kHz with a pulsating quality.