Identification: The wavy white line across the back strongly suggests this species. The spine extending forwards from the tip of the nose (tylus) confirms species ID.
Range: Based on the range map on BugGuide, Leptoglossus clypealis can be found throughout most of North America. However, it often occurs in large numbers in the Southwest where is is considered a pest species in pistacio and almond orchards because it feeds on the nuts. My limited records indicate L. clypealis is usually seen in the Ozarks during late fall and early winter.