Insect Identification
Insect Identification

Katydid - (Microcentrum rhombifolium)

Authored By Staff Writer | Last Updated: 11/15/2013

The Katydid looks like a leaf and has a chirp like no other.

Katydids get their name from the perceived sound they make. Their repetitive clicks and calls sounded like someone saying, "Ka-ty-did", so the common name became that phrase. Both genders are capable of producing the sound. Katydids are related to crickets and grasshoppers, with large back legs for jumping. They have wings, however, and will fly away from danger.

Adults are remarkably well-camouflaged for sitting on trees. Their body resembles a green leaf, even down to a detailed venation (veins in the leaf). Katydids will remain very still when on alert, but will quickly fly away when threatened, scared or disturbed. Nymphs (juveniles) have spots or speckles of black on them and eventually mature to the complete green color.

Angle-winged katydids lay their eggs on twigs in a single row, one slightly overlapping the egg before it. The eggs are flat, almost like small pumpkin seeds, and they may might not all be the same color.

Katydids eat the leaves from the tops of trees and bushes, where there may be fewer predators and less competition. They can be found in parks, gardens, fields and woods. Adults are most active in summer and autumn, but in Florida, the warm weather allows them to remain active all year long.

©2005-2016 All Rights Reserved. No Reproduction Permitted. Unauthorized use and/or duplication of this material without express and written permission from is strictly prohibited. Material presented throughout this website is for entertainment value and should not to be construed as usable for scientific research or medical advice (insect bites, etc...). Please consult licensed, degreed professionals for such information. Email corrections / Comments to InsectIdentification at Gmail dot com.

Category: Grasshopper or Cricket
Common name: Katydid
Scientific Name: Microcentrum rhombifolium
Other Names: Greater Wing Katydid

  Kingdom: Animalia
   Phylum: Arthropoda
    Class: Insecta
     Order: Orthoptera
      Family: Tettigoniidae
       Genus: Microcentrum
        Species: rhombifolium

Adult Size (Length): 45mm to 65mm (1.77in to 2.56in)

Identifying Colors: green

Additional Descriptors: leaf, flat, jump, thighs

North American Reach (Though Not Limited To*): Alabama; Alaska; Arizona; Arkansas; Colorado; Connecticut; Delaware; Florida; Georgia; Hawaii; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; West Virginia; Wisconsin; Alberta; British Columbia; Manitoba; New Brunswick; Newfoundland and Labrador; Nova Scotia; Ontario; Prince Edward Island; Quebec; Sasketchewan

* Keep in mind that insect reach is not governed by lines on a map and therefore may appear in areas/regions/states beyond those listed above.