32 Bangs — Rare or Not Well Knovn Costa Rican Birds. 



Prionornis carinatus (I)uBus). 

 As there are very few Costa Eican records for this bird, an aduU male 

 from La Yijagua Mareli :>, 190S, is worthy of mention. At tliesame i)lace 

 Underwood also took examples of Prionornis minor Ilartert. 



Hylomanes momotula Lieht. 



Twelve specimens were secured at La Vijagua, Tenorio and Cerro Sta. 

 Maria during January and February, 1908. LTpon comparing these skins 

 with an equal nuudx'r from Mexico, Guatemala, and British Honduras, 

 I fail to find any constant differences. 



Glaucidium griseiceps Sharpe. 



One adult male. La Vijagua, Fel)ruary 2,5, 1908. Although Sharpc in 

 his Hand List of Birds gives the range of this owl as extending south to 

 Panama, this is, so far as I know, the first actual record of its capture in 

 Costa Rica. 



Platypsaris aglaise latirostris (Bonap.). 



At Bolson, in I)ecem))er, 1907, Underwood took two adult males, two 

 young males and an adult female of the gray becard. The two old males are 

 nearly alike; each has an ill-defined, small, jnnkish-white throat patch. 

 The subspecies, which is a very strongly characterized one, is rare in col- 

 lections and there are but few Costa Rican records. 



Scotothorus vergepacis (Scl.). 



In the last few years I have accumulated a very large series of this 

 species from Costa Rica, which })roves conclusively that the supposed 

 soutliern form, my Srotothorus verir-pacia dumicola, was based wholly on 

 diflTerences due to individual variation, and that such a form does not 

 really exist. Any large series from any one place, whether within the limits 

 of the Pacific fauna or the Caril)bean fauna, is found to contain specimens 

 exactly like the northern true renc-pacis, others representing the so-called 

 dumicola and others again variously intermediate. 



Piprites griseiceps Salv. 

 Two specimens, male and female, weri' taken at La Mjagua February 19 

 and ]\Iarch 1, 1908. Tbe bird still remains so rare that I mention these 

 two additional examples, especially as they are from a locality from wliich 

 the species has not before been recorded. 



Rhynchocyclus marginatus Lawr. 



At Tia Vijagua, Underwood took two adult fenudes of this very distinct 

 and exceedingly rare tyrant bird, one on February 21, the other Feb- 

 ruary 25, 1908. These two specimens agree in color (except in liaving the 

 yellow of belly and wing-margins paler, and therefore more like the type 

 from T'anama) with the only other known (^ista Rican skin, an adult 

 male from Corrillo in my collectioii. They ali'ord the following measure- 

 ments : 



