BIKDS OF NORTH AND MIDDLE AMERICA. 453 



Arremonops chloronota Nelson, Auk, xv, Apr., 1898, 157 (Yajalou, e. Chiapas).— 

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



lEmbemagra striaticeps.'\ Subsp. )^. Emhernagra chloronota Shaepb, Cat. Birds 

 Brit. Mus., xii, 1888, 764. 



ARREMONOPS CONIROSTRIS CONIROSTRIS (Bonaparte). 

 lAFRESNAYE'S SPARROW. 



Similar to A. chlm-onotus but much larger and coloration paler; 

 lateral crown-stripes deeper black, gray of head-stripes much paler, 

 olive-green of back, etc., paler, and chest much less distinctly gray. 

 Adult »iafe.— Length (skins), 152.40-170.18 (163.07); wing, 76.71- 

 79.25 (77.98); tail, 67.31-72.39 (69.60); exposed culmen, 14.73-17.78 

 (16.26); depth of bill at base, 8.13-10.92 (10.16); tarsus, 25.91-30.48 

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



Adult female.— Ij&ngth (skins), 156.21-162.56 (159.51); wing, 70.61- 



77.47 (74.17); tail, 65.63-70.61 (68.68); exposed culmen, 16.24-16.00 



(15.75); depth of bill at base, 9.91-10.67 (10.16); tarsus, 28.19-30.48 



(28.96); middle toe, 18.80-19.56 (19.05).' 



Colombia, north to the Panama Railroad.'' 



A.\rremon'\ conirostris Bonaparte, Consp. Av., i, July 20, 1850, 488 ("Brazil"; 



Paris Mus.). 

 Emhernagra conirostris Sclater, Proc. Zool. Soc. Lond., 1855, 154 (Bogota, Co- 

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

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

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

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



Salvin, Nom. Ay. Neotr, 1873, 32 (Colombia). 

 Arrernonops conirostris Bangs, Proc. New Engl. Zool. CI. ii, Sept. 20, 1900 (Loma 



del Leon, Panama E. R. ) . 

 [Emhernagra striaticeps.'] Subsp. a. Emhernagra conirostris Sh.akpb, Cat. Birds 



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

 Emhernagra striaticeps TuAFB.t^s^SA.YE, Rev. Zool., 1852, 61 (Panama; type in Boat. 

 Soc, Nat. Hist.).* 



ARREMONOPS CONIROSTRIS RICHMONDI Ridgway. 

 RICHMOND'S SPARROW 



Similar to A. c. conirostris but slightly smaller, much brighter olive- 

 green above, gray of head much deeper, and chest distinctly ash gray; 

 similar in coloration to A. chloronotus but much larger, lateral crown- 



^ Nine specimens. 



^ Three specimens. All the specimens measured are from the line of the Panama 

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



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

 conirostris as to color, many (including all of a series of nine specimens from Loma 

 del Leon, in the collection of Messrs. A. E. and 0. Bangs), are hardly distinguishable 

 from the Central American form [A. c. richmondi). Since, however, al4 these 

 Panama birds average decidedly 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. 



