Fig. 2
From: Evolution of wing scales in Diptera documented by fossils

Maietta trimedia Alexander, 1967, recent species: A, head and antenna; B, wing; C, density of scales on wing; D-G, male genitalia: explanatory drawings of ventral and dorsal view (D-E, respectively), photos of ventral (F) and dorsal views (G). Abbreviations: 1, 2, 3, three tendon-like connections: 1, between inner and outer gonostyle; 2, 3, between inner gonostyle and gonocoxite; other abbreviations as in Fig. 1. Scale bars [mm]: A: 0.5, B: 1.0; C, F, G: 0.2