274 U.S. NATIONAL MUSEUM BULLETIN 221 



Genus MUSCIGRALLA d'Orbigny and Lafresnaye 



Lepturus brevicauda Peale 



U.S. Exploring Expedition 8 (Mamm. and Orn.) : 103, "pi. xxvii, fig. 

 4," 1848. 

 =MuscigralIa brevicauda d'Orbigny and Lafresnaye. 

 14415. Adult (sex not indicated). Near Callao, Peru. July 18 — . Orig- 

 inal number 199. U.S. Exploring Expedition (1838-1842). 



Genus TYRANNUS Lacepede 



Tyrannus couchii Baird 



in Baird, Cassin, and Lawrence, Rep. Expl. and Surv. R.R. Pac. 9: 170 

 (inkey), 175,1858. 

 =Tyrannus melancholicus couchii Baird. See Hellmayr, Catalogue of 

 birds of the Americas 5: 109, 1927. 



4001. Adult male. State of Nuevo Leon, Mexico. 1853. Collected by 

 Darius N. Couch. Original number 99. 



4002. Adult (sex not indicated). San Diego, State of Nuevo Leon, 

 Mexico. March 1853. Collected by Darius N. Couch. Original num- 

 ber 111. 



4003. Adult male. San Diego, State of Nuevo Leon, Mexico. April 1853. 

 Collected by Darius N. Couch. Original number 126. 



Couch's original label for No. 4002 gives the locality as "Rio San Juan, 

 San Diego." The only San Diego in Nuevo Leon known to me lies at the 

 head of the Arroyo Calabazal (near its mouth called the Arroyo Lajas), a 

 tributary that enters the Rio San Juan just downstream from China. 

 Tyrannus dominicensis sequax Brodkorb 

 Auk 67 (3) : 337, July 27, 1950. 

 172802. Adult male. Nueva Gerona, Isla de Pinos, Province of La 

 Habana, Cuba. July 10, 1900. Collected by William Palmer and 

 Joseph H. Riley. Original number 661. 

 Tyrannus dominicensis tenax Brodkorb 

 Auk 67 (3) : 343, July 27, 1950. 

 151714. Adult male. Margarita Island, Caribbean Sea off the State of 

 Sucre, Venezuela. July 7, 1895. Collected by Wirt Robinson. Orig- 

 inal number 453. 



Genus SIRYSTES Cabanis and Heine 



Sirystes sibilator atimastus Oberholser 



Proc. U.S. Nat. Mus. 25 : 66, August 30, 1902. 

 129412. Adult male. Chapada (lat. 14°55' S., long. 59°58' W.), State 

 of Mato Grosso, Brazil. March 13, 1885. Collected by Herbert H. 

 Smith. Received from the American Musexun of Natural History, 

 where it was No. 58403. 



