96 TYEANNID^, 



with spots of two shades of brown, principally towards the larger end, where they form 

 a ring. 



9. Myiarchus nigriceps. 



Myiarchus nigriceps, Scl. P. Z. S. 1860, p. 68 ' ; Cat. Birds Brit. Mus. xiv. p. 258 ^; Lawr. Ann. 

 Lye. N. Y. vii. p. 327 (?)' ; Scl. & Salv. P. Z. S. 1864, p. 360*; Tacz. Om. Per. ii, p. 324 \ 

 Myiarchus hrnnneiceps, Lawr. Ann. Lye. N. Y. vii. p. 327 °. 



M. lawrencii persimilis, tectricibus alarum baud rufo limbatis distinguendus. 

 Av. juv. primariis plus minusve rufo marginatis. 



Eah. Panama, Lion Hill {WLeannan ^ ^ % — South Ambkica, Colombia, Ecuador, Peru^, 

 Venezuela, Guiana, and Amazons valley ^. 



"We believe that this bird, when adult, may always be distinguished from M. law- 

 rencii by the absence of the rufous edgings to the quill-feathers. The crown, too, is 

 more intensely black, but this is a very variable feature in the allied form. The 

 boundary between the two birds seems fairly definite : M. nigriceps just enters our 

 fauna as far as the line of the Panama Kailway ; a little further westward M. law- 

 rencii takes its place. 



M. nigriceps was first described from specimens obtained by Fraser at Pallatanga in 

 Ecuador, and it has since been discovered to exist over a wide area of northern South 

 America from the valley of the Amazons to the Caribbean sea. In Peru Stolzmann speaks 

 of it as common at Tambillo, frequenting the edges of the forests and in other places 

 even at an elevation of 9500 feet at Cutervo. 



b'. Rostrum latum, breviusculum, pectus distincte flammulatum. 

 10. Myiarchus flanmndatns. (Tab. XXXVII. fig. 2.) 



Myiarchus fiammulatus, Lawr. Ann. Lye. N. Y. xi. p. 71 ^ ; Bull. U. S. Nat. Mus. no. 4, p. 28 " j 

 Ridgw. Pr. Biol. Soe. Wash. ii. p. 93'; Man. N. Am. B. p. 335*; Scl. Cat. Birds Brit. 

 Mus. xiv. p. 263 '. 



Supra oliVaceus, eapite vix obscuriore ; alls fuscescentibus, tectricibus paUide rufo tenrdnatis, remigibus et 

 secundariis extemis eodem colore limbatis, secundariis intemis sordide albo terminatis ; Cauda fuscescente 

 striate extrorsum limbata : subtus usque ad pectus albidi-cinereo fiammulatus ; abdomine pallida sulphureo, 

 subalaribus ochraceo tinetis : rostro et pedibus nigricantibus. Long, tota 6'3, alse 3-2, caudffi 3"0, tarsi 0*7, 

 rostri a rictu 0-8. (Descr. exempl. ex Tehuantepeo, Mexico. Mus. nostr.) 



Eah. Mexico, Mazatlan (fide Midgway % Cacoprieto, Tehuantepec {Sumichrast ^ ^ ^). 



A very distinct species, doubtfully referable to Myiarchus. The bill is much 

 shorter than in typical Myiarchus, and broader in comparison with its length. We 

 only know of its occurrence on the Isthmus of Tehuantepec, where Sumichrast discovered 

 it. Mr. Eidgway, however, extends its range to Mazatlan. 



