Red-shouldered Stink Bug

Thyanta custator

Classification

Pronunciation

How to pronounce Thyanta custator: /ˈθaɪ.æntə kʌsˈteɪtɔr/

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

Images

Thyanta custator custator02 by Herb Pilcher, USDA Agricultural Research Service, Bugwood.org. Used under a CC BY 3.0 license.
Thyanta custator accerra P1530635a by 
xpda. Used under a CC BY-SA 4.0 license.
Thyanta custator accerra P1530634a by 
xpda. Used under a CC BY-SA 4.0 license.
Thyanta custator custator04 by Herb Pilcher, USDA Agricultural Research Service, Bugwood.org. Used under a CC BY 3.0 license.
Thyanta custator custator03 by Herb Pilcher, USDA Agricultural Research Service, Bugwood.org. Used under a CC BY 3.0 license.
Red-shouldered Stink Bug - Thyanta custator, Meadowood SRMA, Mason Neck, Virginia, September 13, 2017 (53557505943) by Judy Gallagher. Used under a CC BY 2.0 license.

Summary

Thyanta custator, commonly known as the red-shouldered stink bug, is a polyphagous species of stink bug found in North America, recognized for its variability and minor pest status in agriculture.

Physical Characteristics

10-11 mm in size, highly variable in coloration; overwintering forms are often, but not always, brown. T. custator custator has a black anterolateral pronotal margin.

Identification Tips

Can be distinguished from the subspecies T. custator accerra based on the presence of a black anterolateral pronotal margin.

Habitat

Found in various habitats across North America.

Distribution

Range spans from Maine to British Columbia and from Florida to California, as well as Guatemala.

Diet

Polypahgous, recorded from dozens of species in 14 plant families.

Ecosystem Role

Minor pest of crops, interacts within various plant communities due to polyphagous diet.

Economic Impact

Minor pest of crops, potentially impacting agricultural yields.

Evolution

There are good biological reasons for keeping T. custator and T. pallidovirens as separate species despite their morphological similarities.

Misconceptions

Historically, T. custator was often misidentified in literature; confusion between it and T. pallidovirens has occurred over the years.

Tags

  • stink bug
  • Thyanta custator
  • Hemiptera
  • agricultural pest