Sunn pest - Eurygaster integriceps
Effective: April 22, 2016
Taxonomic Position: Hemiptera : Scutelleridae
Pest Type: Insects
Pest Code (NAPIS): IQAZAMA
This pest is a member of the following surveys: Small Grains
These Approved Methods are appropriate for: 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017
Key Diagnostic or Identification
Morphological. Eurygaster nymphs lack distinguishing morphological characteristics and must be reared to adult to identify to species. Adults can be distinguished from other congeners based on morphological differences described in Ali and Khidhir (2016) including body size, the groove pattern on the clypeus, and the curve of the prothorax. The male genitalia is also a key character. See CPHST Pest datasheet for reference.
Eurygaster integriceps is difficult to distinguish from two congeners, E. maura and E. austriaca, without dissection. Neither species is known to occur in the United States. Images and diagnostic characters for E. maura and E. austriaca are available on the Pest and Disease Image Library (PaDIL) website (http://www.padil.gov.au/).
There are five Eurygaster species present in North America: E. amerinda, E. alternata, E. minidoka, E. paderewskii, and E. shoshone. None of these species are pests of wheat.