Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Field Cricket Order: Orthoptera Family: Gryllidae Genus/Species: Gryllus spp. Description: Field Crickets are black, often shiny, and may have some brown on the forewings. When full grown they are about ¾ inch long. The ocelli (simple eyes) are arranged in a triangle. The hind tibia are short, stout, fixed and at least ¾ the length of the hind femora. Cerci (sensory appendages at the end of the body) are hairy and longer than the head and prothorax combined. The wings do not project beyond the cerci. The antennae are black and longer than the body. The female has a prominent ovipositor. The males chirp by scraping special ridges along their wings’ margins. Habitat: Field Crickets are widely distributed in fields, pastures, lawns, along roadsides and in woods in undergrowth where there is moderate humidity and protection from wind and cold. Life Cycle: Field Crickets lay eggs in small groups in slightly damp soil. After the eggs hatch, nymphs take two to three months to develop, during which time they molt about eight or nine times. Most Field Crickets have a single generation per year. Economic Importance and Management: Field Crickets eat a wide variety of plant materials and only occasionally damage crops such as tomatoes and beans. May enter structures. Chemical control is not recommended. References: Garden Insects of North America, Whitney Cranshaw Peterson Field Guide: Insects, Donald J. Borror & Richard E. White How to Know the Insects, Roger J. Bland PNW Insect Management Handbook, Craig S. Hollingsworth, Editor Photo: OSU Ken Gray Insect Collection 6/2010 NWERC MG Curation Group Field Cricket Arthropod Information Sheets