BIRDS OF NORTH AND MIDDLE AMERICA. 509 



[Nuttalloniis] borcalis ShapxPE, Hand-list, iii, 1901, 140. 



C[ontopus]{^\'[HttaUoniis]) borcalis CouES, Key N. Am. Birds, 5th ed., i, 1903, 524. 

 Sayoriiis borcalis Wheaton, Ohio Agric. Rep., 1860, Birds, no. 48. 

 [Pyrocephalus] borcalis Gray, Hand-hst, i, 1869, 362, no. 5507. 

 Musdcapa coo/x-a Nuttall, Man. Orn. U. S. and Can., i, 1832, 282 (Mount An l)nrn, 

 near Boston, Massachusetts).— Audubon, Orn. Biog.,ii, 1834, 422, pi. 174; 

 Synopsis, 1839, 41; Birds Am., oct. ed., i, 1840, 212, pi. 58. 

 Tyrannus cooperi Bonaparte, Geog. and Comp. List, 1838, 24.— Nuttall, Man. 

 Orn. U. S. and Can., 2d ed., i, 1840, 298.— Sclater, Proc. Zool. Soc. Lond., 

 1856, 297 (Mexico).— Gambel, Journ. Ac. Nat. Sci. Phila., i, 1847, 40 (Cali- 

 fornia and Rocky Mts.).— Reinhardt, Ibis, 1861, 7 (Nenortalik, Greenland, 

 Ispec). 

 M[yiobius] cooperi Gray, Gen. Birds, i, 1847, 248. 

 T[yranmda] cooperi Hartlaub, Syst. Verz., 1844, 49 (Guatemala). 

 [Tyrannida] oopcri Bonaparte. Consp. Av., i, 1850, 189. 

 Tyr[annula] cooperi Kaup, Proc. Zool. Soc-. Lond., 1851, 51 (North America; 



"Chile"; crit.). 

 Coniopus cooperi Reinhardt, Journ. fur Orn., 1854, 439.— Cabanis, Journ. fiir 



Orn., iii, 1855, 479; ix, 1861, 248 (Costa Rica). 

 C[ontopus] borcalis Cabanis and Heine, Mus. Hein., ii, 1859, 72 (excl. syn. C. 



borcalis Sclater, =C. pertinax). 

 {Contopits] cooperi H?fiiNE and Reicuenow, Nom. Mus. Hein. Orn., 1890, 146. 

 [Myiarchus] rillicus Lichtenstein, Nom. Av. Mus. Berol., 1854, 16 (Mexico; 



nomen nudum !) . 0, 



Musdcapa inornata Nuttall, Man. Orn. U. S. and Can., i, 1832, 282 (Massachu- 

 setts); Mem. Am. Ac. Arts and Sci., n. s., i, 1833, 102. 



Genus MYIOCHANES Cabanis and Heine. 



Contopus (^not Conlipns de Marseul, 1853) Cabanis, Jouni. t'iir Orn., iii, Nov., 1855; 



479. (Type, Musdcapa virens Linnseus.) 

 Syrichta (not Syrichtus Boisduval, 1833) Bonaparte, Ann. Scf. Nat., ser. 4, 



Zool., i, 1854, 133. (Type, Tyrannida ardosiaca Lafresnaye.) 

 Myiochanesa Cabanis and Heine, Mus. Hein., ii, Sept., 1859, 71. (New name 

 for Syrichta Bonaparte, preoccupied.) (See Oberholser, Auk, xvi, 1899, 

 330, 334.) 

 Horizopusb Oberholser, Auk, xvi, Oct., 1S!)9, 331. .^To replace Contopus 

 Cabanis, preoccupied.) 

 Small to medium sized T}Tannid8e (wiiig about 68-11.5 mm.) with 

 tail much less than eight-ninths as long as wing or else (M. hradiy- 

 tarsus) the tenth primary much longer than fifth, and tarsus less 

 than one-fifth (sometimes less than one-sixth) as long as wmg; other- 

 wise resembling Blacicus but bill less depressed, with culmen less 

 strongly ridged and lateral outlines straighter, rictal bristles smaller, 

 wing-tip longer (the longest primaries exceeding secondaries by at 

 least combined length of tarsus and half the middle toe, usually by 

 more than tarsus and whole middle toe together) and tarsus relatively 

 shorter, usually barely exceeding length of middle toe with claw. 



o"Von nvla, (Fliegc) und jaiVta (Schnappen)." 

 b "opi^oo, limitis; itovi, pes." 



