Orosarcophaga, Townsend, 1927

Key to males of Orosarcophaga View in CoL

1. Scutellum without apical setae........................................................................... 2

- Scutellum with apical setae............................................................................. 3

2. Abdominal tergite 4 with a pair of median marginal setae..................................................... 4

- Abdominal tergite 4 without median marginal setae.......................................................... 7

3. Outer vertical seta not differentiated from postocular setae..................................................... 9

- Outer vertical seta differentiated from postocular setae....................................................... 10

4. Sternites 1–3 with pale setae; pregonite without irregularities on the anterior margin. Orosarcophaga angolensis ( Hall, 1937)

- Sternites 1–3 with black setae; pregonite with irregularities on the anterior margin, mostly C-shaped................... 5

5. Sternite 5 without spiny setae; postgonite with median seta inserted distad to middle ( Fig. 4A View FIGURE 4 ).......................................................................................... Orosarcophaga panamensis ( Lopes, 1988)

- Sternite 5 with spiny setae; postgonite with median seta inserted proximad to middle ( Fig. 4B–C View FIGURE 4 )..................... 6

6. Anterior margin of postgonite serreated near apex ( Fig. 4B View FIGURE 4 ); median seta of postgonite about 0.2 times as long as postgonite ( Fig. 4B View FIGURE 4 ).............................................................. Orosarcophaga wicharti (Lopes, 1953)

- Anterior margin of postgonite smooth near apex ( Fig. 4C View FIGURE 4 ); median seta of postgonite about as long as postgonite ( Fig. 4C View FIGURE 4 )........................................................................ Orosarcophaga excisa ( Lopes, 1950)

7. Outer vertical seta not differentiated from postocular setae......................... Orosarcophaga grata (Lopes, 1953)

- Outer vertical seta differentiated from postocular setae........................................................ 8

8. Anterior margin of postgonite smooth near apex ( Fig. 4D View FIGURE 4 )..................... Orosarcophaga piliventris ( Dodge, 1966)

- Anterior margin of postgonite serrated near apex ( Fig. 4E View FIGURE 4 )............. Orosarcophaga uraricoera ( Tibana & Lopes 1990)

9. Sternite 5 with spines restricted to the apex of the cushion-like median protuberances ( Fig. 4F View FIGURE 4 )............................................................................................... Orosarcophaga vittata ( Lopes, 1982)

- Sternite 5 without spines, only with strong setae ( Fig. 4G View FIGURE 4 )..................... Orosarcophaga ornata Townsend, 1927

10. Juxta tripartite with pointed apex ( Fig.2B View FIGURE 2 ).................................... Orosarcophaga grisea ( Lopes, 1982)

- Juxta tetrapartite with rounded apex ( Giroux et al. 2010: fig. 11B)........... Orosarcophaga xanthophora ( Schiner, 1868)