Oregon Department of Agriculture guides
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Neottiglossa undata

Size: 4.5 - 6mm

Description: Body is long-oval shape, mostly grey brown. Yellow triangular head with brown to black punctures. Pale yellow line in the middle of head that extends through pronotum to scutellum, often with two pale lines on opposite sides of scutellum. Outer antennal segments dark.

Hosts: Frequently found on wild carrot, grasses, and wild oats in abundance.

Range: Across Canada and the United States. Common in Oregon in the Willamette Valley and identified from specimens in Baker, Deschutes, Douglas, Jackson, Lake, and Wasco counties.
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Neottiglossa tumidifrons

Size: 4.5 - 6mm

Description: Very similar in appearance to N. undata, but with a more narrow body than that species. Head broadly rounded at the tip with concave appearance. Also very similar in appearance to N. cavifrons which are not as common or not known to occur in Oregon. 

Hosts: Frequently found on wild carrot, grasses, and wild oats. 

Range: Across Canada and the United States. Common in Oregon in the Willamette Valley and identified from specimens in Baker, Deschutes, Douglas, Jackson, Lake, and Wasco counties.
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