FIGURE 6. Differences in antennae morphology, dorsal view: A. Argentinomyia luculenta (♀); B. Argentinomyia testaceipes (♀); C. Argentinomyia catabomba (♀); D–G. Talahua fervida (♁): D. Head, frontal view, E. Metacoxa pile tuft, ventral view, F. Scutellum emarginated, dorsal view, G. Genitalia, lateral view; H. Argentinomyia CR-18 (♁); I. Argentinomyia sagoti sp. nov. (♀); J. Metasternum of Melanostoma sp.; K. Scutellar pile of Argentinomyia rex; L. Antennal cavities broadly confluent of Xanthandrus sp. Scale bar: 1 mm.