^"kis^'l Nelson, 7\We5 on Mcxinut Birds. jcy 



1850, and thus has priority over Atlapeics ritbricntus Cabanis, published 

 in a signature of the 'Museum Ileineanuiii ' (I, \i. 140) dated May, 1851. 

 Should mv surmise regarding; the itientitv of these birds prove to be 

 well founded then P. riibricaium becomes a geographical race of P. 

 kieneri <\.x\di P. rubricatiim xantusi is a pure sjnonjm of P. kietteri. In 

 his description of the latter bird Bonaparte gives its habitat as western 

 America. 



Pipilo maculatus Srv. — In our collection from Mt. Orizaba, Puebla, 

 and the surrounding region are numerous specimens representing both 

 sexes of Pipilo maculatus Sw. The females in this series are typical 

 representatives of Pipilo orizabce Cox (Auk, 1894, p. 161), \vhich was 

 described from a summer bird in worn plumage erroneously labeled 

 male. The evidence furnished by a careful comparison of the type with 

 our series is conclusive that P. orizabce is based upon a wrongly sexed 

 specimen of P. tnaculatus and it becomes, in consequence, a synonym of 

 the last named species. 



Arremonops rufivirgata sumichrasti (^Sharpe). — Einbernagra sumi- 

 chrasti Sharpe, Cat. Bds. Brit. Mus., XII, p. 762 (in text), 1SS8. 



Specimens before me from the west coast of Mexico show that 

 Sharpe's bird is a well marked geographical race of Arremonops rufivir- 

 gata. It ranges from the border of Chiapas north along the west coast 

 of Mexico to the State of Colima. 



Arremonops chloronota Salvin. — We obtained this species at Yajalon 

 in eastern Chiapas, thus adding it to the fauna of Mexico. 



Chlorospingus postocularis Cab. — The type of this species came 

 from Guatemala, and I find that my C. atriceps (Auk, Jan. 1S97, p. 65), 

 from Pinabete, Chiapas, is too closely related to it to be separated. The 

 latter becomes in consequence a synonym of C. postocularis, the range 

 of which extends through the mountains of southwestern Guatemala and 

 Chiapas. 



Chlorospingus olivaceus (j5^).-- Not uncommon in the dense forest 

 at Tumbala, Chiapas. 



Piranga bidentata Szvainson, and Piranga sanguinolenta Lafresnaye. 

 — Recent writers agree in considering Lafresnaye's Piranga sanguino- 

 lenta a synonym of Swainson's Piranga bidefitata. But the collections 

 of birds made in Mexico for the United States Department of Agricul- 

 ture, contain material which, studied in connection with the specimens 

 in the U. S. National Museum, appears to prove the specific distinct- 

 ness of these birds. The misapprehension of their true relationship 

 appears to have arisen from the rarity of P. bidentata in collections, 

 whereas specimens of P. sanguinolenta have been common. The two 

 species once confounded, the error has been perpetuated through lack 

 of material for their proper discrimination. 



Piranga bidentata was described by Swainson in the 'Philosophical 

 Magazine' for 1827 (p. 428) from a specimen taken b}- Bullock at Teinas- 

 caltepec, Mexico. It was said to be "golden on head, neck and under- 



