FIGURE 12 in The first fossil New World Dixidae with a critical discussion of generic definitions

FIGURE 12. Intraspecific wing venation pattern variability in Dixidae. 1-2, Wings from two different individuals of Dixella nova (USNM01193745, USNM01193785, ♀, ♂, respectively; NY). 3-4, Wings from two different individuals of Dixa terna (USNM01193791, USNM01193792, ♂, ♂, respectively; PA & VA). 5-6, Wings from two different individuals of Dixa rhathyme (USNM01193798, USNM01193868,?, ♀, respectively; CA). 7-8, Wings from two different individuals of Dixella obscura (USNM01193908, USNM01193974,?, ♀, respectively; AZ & AK). Collection localities are in parentheses. Arrows and arrowheads denote specific points of variation. Abbreviations: AK = Alaska, AZ = Arizona, CA = California, NY = New York, PA = Pennsylvania, VA = Virginia, USA.