Image of periscelidid flies

Description:

Figures 1–4.Cyamops alessandrae (New Zealand. North Island. WO: Whangamarino Peat Bog). 1 6th and 7th abdominal segments and postabdomen in ventral view 2 epandrium, proctiger, and surstyli, posterior view 3 same, anterior view 4 same, left lateral view. Epandrium, surstyli, aedeagus, and hypandrium are masked by black tone in Fig. 1. All setae on the epandrium are abbreviated in Fig. 2 and 3. Abbreviations: ep, epandrium; s, surstylus; 6–7S: 6th and 7th abdominal sternites. Scale bar: 1 = 0.20 mm, 2–4 = 0.12 mm.