Pediodectes haldemanii

(Girard, 1854)

Haldeman's shieldback, American shield-back katydid

Pediodectes haldemanii is a large, flightless to the Great Plains of North America. lack the leaf-like typical of many and exhibit striking dark red markings against a green body. The is known for its relatively docile and has been observed feeding on cactus flowers.

Pediodectes haldemanii P1490736a by 
xpda. Used under a CC BY-SA 4.0 license.Pediodectes haldemanii P1210469a by 
xpda. Used under a CC BY-SA 4.0 license.Pediodectes haldemanii P1210471a by 
xpda. Used under a CC BY-SA 4.0 license.

Pronunciation

How to pronounce Pediodectes haldemanii: //ˌpiːdiəˈdɛktiːz ˈhɔːldəˌmeɪniː//

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

are wingless, making them distinct from most . Body coloration is green with contrasting dark red or reddish- markings across the surface. The is enlarged and shield-like, extending over the . Individuals vary in color pattern with age. Separation from other Pediodectes requires careful examination and may be difficult from photographs alone due to individual variation.

Images

Habitat

Great Plains grasslands and prairies. Documented from prickly pear cactus ( macrorhiza) in Oklahoma.

Distribution

Great Plains region of central North America. Recorded from Colorado, Kansas, Louisiana, Nebraska, New Mexico, and Oklahoma. locality is Barber County, Kansas.

Diet

Has been observed feeding on cactus flower stamens. Specific dietary breadth otherwise poorly documented.

Host Associations

  • Opuntia macrorhiza - flower visitor/feeding siteobserved with buried in stamens

Life Cycle

stage unknown. are present in summer (June observations in Oklahoma).

Behavior

Exhibits notably docile temperament; one individual allowed close approach and photography without fleeing. Lacks cryptic typical of many , sitting conspicuously in open flowers rather than concealed in foliage.

Similar Taxa

  • Other Pediodectes specieswingless with similar body plan; color patterns vary individually and with age, making photographic identification difficult
  • Neobarrettia spinosalarge, , flightless with striking coloration and reduced , but distinguished by spiny forelegs, large predatory , and aggressive defensive posture

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Sources and further reading