Roesel’s Katydid (Metrioptera roeselii)

Song of a Roesel’s Katydid (scroll down for explanation and additional recordings!).

insect_musicians_metrio-rosel_LE_SLIDE_abAt first glance the colorful Roesel’s Katydid looks like a short-horned grasshopper, but it is actually a member of the shieldback group. A European species, it was ac- cidentally introduced to Montreal in the early 1950s and has since spread well into the United States. There is an isolated population in Illinois. Abundant in optimal habitat, the Roesel’s Katydid prefers open, grassy areas. Males sing both day and night from the stems of grasses and weeds. Short-winged and long-winged forms occur.

Range Map for Roesel’s Katydid

Roesel’s Katydid

 
Song: A high-pitched quavering buzz that may be given continuously, or in a broken series. The peak frequency is about 15 kHz. Song has a crackling quality similar to an electrical short. At close range it is hard on the ears.

 
 
Sonogram of a Roesel’s Katydid. © Wil Hershberger.

 

 

Roesel’s Katydid

• click to enlarge •

• click to enlarge •

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FAMILY DESCRIPTION

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Meadow Katydids (Tettigoniidae):
FAMILY DESCRIPTION
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):
FAMILY DESCRIPTION
Round-tipped Conehead
Nebraska Conehead
Robust Conehead
Slightly Musical Conehead
Sword-bearing Conehead
False Robust Conehead
True Katydids (Pseudophyllinae):
FAMILY DESCRIPTION
Common True Katydid
False Katydids (Phaneropterinae):
FAMILY DESCRIPTION
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):
FAMILY DESCRIPTION
American Shieldback
Least Shieldback
Protean Shieldback
Robust Shieldback
Roesel’s Katydid

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