CONTOPUS. 83 



able the Jalapa bird should be called C. pertinax, and on the American system of 

 nomenclature a basis for a trinomial can be found for the latter if required. 



Though, generally speaking, a bird of the upland regions of the countries where it is 

 found, G. musicus is not strictly confined to such districts, for Grayson met with it at 

 all seasons near Mazatlan and at Tepic. In Guatemala it usually frequents the second- 

 growth woods at an elevation of 4000 to 6000 feet above the sea, and here it is not 

 an uncommon bird at all seasons of the year. 



In Arizona Mr. H. W. Henshaw met with this species in abundance from July to 

 September, young birds being well fledged by the middle of the former month, so that 

 the eggs must have been laid early in June. He gives a full account of the habits of 

 the species as observed by him in Arizona ; but he appears to have reached that country 

 too late in the season to find it in the early stages of its breeding, and neither nest nor 

 eggs have yet been discovered. Its chief resort is amongst the pine-woods and oaks at 

 a lower elevation. 



3. Contopus lugubris. 



Contopus luffubris, lia,yvT. Ann. Lye. N. Y. viii. p. 134', ix. p. 115^; Frantz. J. f. Om. 1869, 

 p. 308' J Baird, Brew., & Ridgw. N. Am. B. ii. p. 351 * ; Salv. Ibis, 1874, p. 310 ^ Scl. 

 Cat. Birds Brit. Mus. xiv. p. 236 '. 



0. musico similis, sed valde minor et omnino obscurior. 



ffab. CosTA EiCA, Barranca ^, Birris, and Dota (Carmiol ^) ; Panama, Chiriqui {ArcS ^). 



Our single specimen of this species agrees closely with Mr. Lawrence's type, being 

 only slightly smaller ; its darker plumage is due to its feathers being more freshly 

 moulted. This is but a small dark form of C. musicus, probably restricted in its range 

 to the mountain-system of Costa Rica and the State of Panama. Its isolation no doubt 

 renders its recognition certain. 



4 Contopus ardesiacus. 



Tyrannula ardosiaca, Lafr. Rev. Zool. 1844, p. 80 \ 

 Sayornis ardosiacus, Cassin, Pr. Ac. Phil. 1860, p. 144 ^ 



Contopus ardesiacus, Scl. & Salv. P. Z. S. 1879, pp. 515 \ 615 * ; Tacz. Om. Per. ii. p. 317 ' ; Scl. 

 Cat. Birds Brit. Mus. xiv. p. 337 '. 



Supra ardesiacus, capite nigricantiore ; alis et cauda nigricantibus : subtus pallidior : rostri maxilla nigrioante, 

 mandibula cornea; pedibus nigris. Long, tota 6*5, alse 3" 5, caudse rect. med. 2"8, reet. lat. 3-1, tarsi 0"6, 

 rostri a rictu 0-85. (Descr. maris ex Santa Elena, Colombia. Mus. nostr.) 



Eab. Panama, Truando {Wbod^). — South America, from Colombia ^^ to Bolivia*, 

 Venezuela ^ and Guiana ^. 



This species just comes within our limits, as it was met with at the falls of the 

 Truando river by Mr. C. J. Wood, who accompanied Lieut. Michler's exploring expedi- 

 tion. He observed a pair about some rocks at the foot of the mountains on the 

 Truando. Its notes were very pleasing and almost formed a continued song. 



11* 



