188 



Bangs — Descriptions of New American Birds. 



olive (in P. cristata the whole wing is of this latter color). About the 

 size of P. boliviano, Bp. of Peru and Bolivia and with similar grayish white 

 edging to feathers of upper parts, but with under parts as in P. cristata 

 with the chestnut restricted to lower belly and under tail coverts. 



Measurements.— Type, adult 9 : wing, 289; tail, 292; tarsus, 82.5; cul- 

 men, 34.5. 



Remarks. — In the collections made in western Colombia by M. G. 

 Palmer, which I got of Rosenberg, there were but two skins of this appar- 

 ently very distinct species, one the type, the other a young bird just able 

 to fly taken at Pavas, March 29, 1908. 



Antrostomus rufus otiosus subsp. nov. 



Type from the island of St. Lucia, West Indies, adult d\ no. 28,674, 

 Coll. Mus. Comp. Zool. Collected by John Semper in 1878 or 1879. 



Characters. — Similar to true A. rufus (Bodd.) of continental South 

 America (north to Panama), but much larger, with a heavier bill. 



Measurements. — 



Antrostomus rufus atiosus Nob. 



Remarks. — Upon comparing a fairly good series of A. rufus from the 

 mainland and from St. Lucia, the island birds were found to be so much 

 and so constantly larger, that they can be regarded as representing a 

 distinct subspecies. 



I notice that Hartert accords to Antrostomus rufus an individual varia- 

 tion in size about corresponding to the differences between the island and 

 the continental forms, and I suspect his larger birds were from St. Lucia 

 and bis smaller ones from the mainland. 



* Coll. U. S. National Museum. 

 + Coll. E. A. and O. Bangs. 

 t Coll. Mus. Comp. Zool. 



