Rare green-form of Least Shieldback showing shield-like pronotum.

Named for the enlarged shieldlike plates that cover the tops of their thoraxes (also called the pronotum), the shieldback katydids are the linebackers of the katydid world, with robust bodies and a fierce demanor (they may look mean, but like most katydids, they are harmless when handled). An extremely diverse group, there are 123 species of shield- backs in North America, represented by twenty-five gen- era. Nearly all are western in distribution — only ten spe- cies occur in the East, most being members of the genus Atlanticus (eastern shieldbacks). In this guide, we feature four eastern shieldbacks, plus the Roesel’s Katydid, a northeastern species in the genus Metrioptera.

Rare yellow-form of American Shieldback.

The shieldbacks are usually the first katydids to emerge as adults. Males can be heard singing as early as mid- to late June, in weedy fields and brushy woodland under- stories. Species can be identified by the pattern of their high-pitched songs, which are swishy rattles or trills, difficult for many people to hear. Species also look different, showing variations in the length of the hind legs relative to the body and the length of the forewings protruding from the shield. Colors vary from neutral gray to reddish brown (note also the rare green color form of the Least Shieldback, pictured above, and the yellowish color variant of the American Shieldback, pictured to the right).


Our Insect Musicians:

Biology of Insect Song
Human Hearing & Insect Song
Beginner’s Guide to Song IDs
Advanced Guide to Song IDs
How to Find and Watch
Singing Insects as Pets
Relaxing Insect MP3s

Master List of Species
(with sounds)

Navigate to Species Pages:

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Meadow Katydids (Tettigoniidae):
Saltmarsh Meadow Katydid
Short-winged Meadow Katydid
Slender Meadow Katydid
Woodland Meadow Katydid
Straight-lanced Meadow Katydid
Agile Meadow Katydid
Black-legged Meadow Katydid
Common Meadow Katydid
Gladiator Meadow Katydid
Handsome Meadow Katydid
Lesser Pine Meadow Katydid
Long-spurred Meadow Katydid
Red-headed Meadow Katydid
Coneheads (Copiphorinae):
Round-tipped Conehead
Nebraska Conehead
Robust Conehead
Slightly Musical Conehead
Sword-bearing Conehead
False Robust Conehead
True Katydids (Pseudophyllinae):
Common True Katydid
False Katydids (Phaneropterinae):
Clicker Round-winged Katydid
Common Virtuoso Katydid
Rattler Round-winged Katydid
Oblong-winged Katydid
Great Angle-wing
Lesser Angle-wing
Broad-winged Bush Katydid
Curved-tailed Bush Katydid
Fork-tailed Bush Katydid
Northern Bush Katydid
Texas Bush Katydid
Treetop Bush Katydid
Shield-backed Katydids (Tettigoniinae):
American Shieldback
Least Shieldback
Protean Shieldback
Robust Shieldback
Roesel’s Katydid


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