Genus XII. STELGIDOPTERYX. 



Type. 



Stelgidopteryx, Baird, B. N. Amer. p. 312 (1858) S. serripennis. 



Range. North America, not extending into the high north. The whole of Central America, and South 

 America to Bolivia and Southern Brazil. 



Clavis specierum. 



a. Jugulum cinerascenti-bruuneum, forsan rufo tinctum : gastneum imum pure 



album 1. serripennis, p. 635. 



b. Jugulum rufesceus : abdomen sulphurascens : subcaudales albse vel pallide 

 L flavte, brunneo subterminaliter notata;. 



a'. Uropygium pallide brunneum 2. ruficollis, p. 647. 



V . Uropygium cinerascens 3. uropygialis, p. 651. 



4 N 



