BIRDS OF NORTH AND MIDDLE AMERICA. 453 



Arremonops chloronota Nelsox, Auk, xv, Apr., 1898, 157 (Yajalon, e. Chiapas). — 

 Laxtz, Trans. Kans. Ac. Sci. for 1896-97 (1899), 222 (Cayo, Brit. Honduras) . 



[Embernagra striatkeiis.'] Subsp. y. Embernagra chloronota Sharpe, Cat. Birds 

 Brit. Mus., xii, 1888, 764. 



ARREMONOPS CONIROSTRIS CONIROSTRIS (Bonaparte). 

 LAFRESNAYES SPARROW. 



Similar to A. c}doronotu>< but much larger and coloration paler; 

 lateral crown-stripes deeper black, gra}" of head-stripes much paler, 

 olive-green of back, etc. , paler, and chest much less distincth' graj'. 

 Adult W2«^tf.— Length (skins), 152.40-170.18 (163.07); wing, 76.71- 

 79.25 (77.98); tail, 67.31-72.39 (69.60); exposed culmen, 11.73-17.78 

 (16.26); depth of bill at base, 8.13-10.92 (10.16); tarsus, 25.91-30.18 

 (28.70); middle toe, 17.78-20.83 (19.30).^ 



Adult female. — Length (skins), 156.21-162.56 (159.51): wing, 70.61- 



77.17 (71.17): tail. 65.53-70.61 (68.58); exposed culmen, 15.21-16.00 



(15.75); depth of bill at base, 9.91-10.67 (10.16); tarsus, 28.19-30.18 



(28.96): middle toe, 18.80-19.56 (19.05).- 



Colom))ia, north to the Panama Railroad.^ 



A.[_rrerhon'] conirostrls Bonaparte, Consp. Av., i, July 20, 1850, 488 ("Brazil"; 



Paris Mus.). 

 Embernagra coniroslrls Sclater, Proc. Zool. Soc. Loud., 1855, 154 (Bogota, Co- 

 lombia) ; Cat. Am. Birds, 1862, 117, part (Bogota, Colombia). — Lawrence, 

 Ann. Lye. N. Y., vii, 1861, 332, part (Panama R. R.).— Stone, Proc. Ac. 

 Nat. Sci. Phila., 1899, 307 (Ambalema, centr. Colombia). 

 [Embernagra] conirostris Gray, Hand-list, ii, 1870, 91, no. 7339. — Sclater and 



Salvin, Xom. Av. Xeotr, 1873, 32 (Colombia). 

 Arremonops cvnirostris Bancis, Proc. New Engl. Zool. CI. ii, Sept. 20, 1900 (Loma 



del Leon, Panama R. R. ) . 

 [Embernagra stnaticeps.l Subsj). a. Embernagra aniirostrix Sharpe, Cat. Birds 



Brit. Mus., xii, 1888, 763, part (Bogota; Santa Marta). 

 Embernagra striatieeps LiAFREfi^ AYE, Rev. Zool., 1852, 61 (Panama; type in Bost. 

 Soc, Nat. Hist.).* 



ARREMONOPS CONIROSTRIS RICHMONDI Ridgway. 

 RICHMOND'S SPARROW 



Similar to ^1. e. cfmirostris but slightly smaller, much l)righter olive- 

 green al)ove, gray of head much deeper, and chest distincth' ash graj^; 

 similar in coloration to ^1. ehloronotus but much larger, lateral crowu- 



^ Nine specimens. 



- Three sj^ecimens. All the specimens measured are from the line of tlie Panama 

 Railroad, none of those froni central Colombia having the sex determined. 



■^ While many specimens from the line of the Panama Railroad are typical of A. 

 co)nrostris as to color, many (including all of a series of nine specimens from Loma 

 del Leon, in the collection of Messrs. A. E. and O. Bangs), are hardly distinguishable 

 from the Central American form {A. c. richmondi). Since, however, aW these 

 Panama birds average decidedh^ larger than those from Costa Rica and Nicaragua, 

 thereby agreeing with typical A. conirostris, I have thought it best to refer them to 

 the latter form. 



*Type examined. 



