Macronychia (Moschusa) trafulensis, Mulieri & Mariluis, 2011

Mulieri, Pablo Ricardo & Mariluis, Juan Carlos, 2011, Description of a new species of Macronychia Rondani (Diptera: Sarcophagidae: Miltogramminae), with a key to the New World species of the genus, Zootaxa 2832 (1), pp. 51-55 : 53-54

Key to males of New World Macronychia

[Modified from Verves (1983) and Verves and Khrokalo (2006).]

1 Postgonite s-shaped. Apical part of cerci close together, not distinctly narrow in dorsal view (subgenus Macronychia ) .............................................................................................................................................................................. 2

- Postgonite hook-shaped ( Fig. 9 ). Apical part of cerci distinctly separated and narrow in dorsal view (subgenus Moschusa ) ( Fig. 6 ) ........................................................................................................................................................ 5

2 Abdominal T5, T6 and syntergosternite 7+8 with golden microtomentum ................................................................... ....................................................................................... M. (s. str.) aurata (Coquillett) [Nearctic only: Canada, USA]

- Abdominal T5, T6 and syntergosternite 7+8 with gray microtomentum ..................................................................... 3

3 Basicosta brown to black, palpi light yellow.................................................................................................................. ....................................................... M. (s. str.) ornata (Townsend) [ Brazil (Mato Grosso, Rio de Janeiro, São Paulo)]

- Basicosta yellow, palpi black........................................................................................................................................ 4

4 Pleura with spots of golden microtomentum .................................... M. (s. str.) aurifrons Hall [ Argentina (Misiones)]

- Pleura with spots of gray microtomentum ...................................... M. (s. str.) lopesi Verves [ Brazil (Rio de Janeiro)]

5 Abdominal syntergite 1+2 with strong median marginal setae ...................................................................................... ................................................................................. M. (Moschusa) utahensis (Smith) [Nearctic only: Canada, USA]

- Abdominal syntergite 1+2 without strong median marginal setae or with very fine setae........................................... 6

6 Genal dilation with golden microtomentum ..................... M. (Moschusa) trafulensis sp. nov. [ Argentina (Neuquén)]

- Genal dilation with gray microtomentum ..................................................................................................................... 7

7 Parafacial with light golden spot of microtomentum...................................................................................................... ........................................ M. (Moschusa) auromaculata (Townsend) [ Chile (Arica Ñuble, Tarapacá); Ecuador; Perú]

- Parafacial entirely covered with yellowish golden microtomentum .............................................................................. ....................................................................... M. (Moschusa) confundens (Townsend) [Nearctic only: Canada, USA] We would like to thank Juan Pablo Torretta, Cátedra de Botánica Agrícola, Universidad de Buenos Aires, Argentina, who made available the specimens for study, and Luciano Patitucci for his valuable assistance with the plates. We are grateful to Thomas Pape for his comments on previous draft of the manuscript. We also thank James E. O’Hara and two anonymous reviewers for very useful suggestions on improving this manuscript.

Figures

FIGURES 5–10. Macronychia (Moschusa) trafulensis sp. nov.: male genitalia. 5. Abdominal ST5, ventral view. 6. Cerci and surstyli, posterior view. 7. Cercus and surstylus, left lateral view. 8. Pregonite, left lateral view. 9. Postgonite, left lateral view. 10. Phallus, left lateral view. Abbreviations: dpl, dorsal plate; sur, surstylus; vpl, ventral plate. Scale bars 0.1 mm.