250 



REVIEW or AMERICAX BIRDS. 



[rART I. 



be delaUrii, are only varieties of rufifrons ; and I am now un- 

 acquainted with any Mexican examples of the species, although 

 quoted by Dr. Sclatcr as from Orizaba. 



Smith-|Collec- 



souian tor's 



Ko. No. 



30,700 



Sex 

 and 

 Atre. 



ijocality 



Cuban, Vera Paz, Xuv. 15, 'oO. 

 [Guat. I 



^VIiph 

 CoUected. 



Received from CoUected 1>y 



Basileuterus mesoclirysiis. 



Basileuterus mesochrysus, Sclater, P. Z. S. 1860, 251 (Bogota). 

 Basileuterus delattrii, Sclater, P. Z. S. 1855, 144 (Bogota). — Cab. Jour. 



1860, 325 (Costa Rica).— ? Lawrence, Ann. N. Y. Lye. 1861, 322 



(Panama). 

 Hab. Bogota, to Costa Eica ? 



(Xo. 30,491.) General cliaracters of B. delattrii, but the wings much longer 

 and more pointed, nearly equal to the entire tail, which is shorter and less 

 rounded ; the 1st quill rather longer than the secondaries. There is no 

 appreciable white in the chin ; that on the side of the lower jaw is scarcely 

 apparent, and does not extend below the chestnut cheeks. The brown of the 

 crowu does not extend so far back ou the head, and hence not behind the 

 ears. The upper parts are of a purer olive ; beneath of a clearer yellow, the 

 crissum being uuicolor with the belly. The quills and tail feathers are darker. 



Total length, 4.S5 ; wing, 2.28; tail, 2.50; graduation, .24; difference be- 

 tween 1st and 4th quills, .24 ; length of bill from nostril, .30 ; along gape, .55 ; 

 tarsus, .85. 



It is possible that a larger series of typical B. delattrii may show 

 that the differences mentioned above are not characteristic, and that 

 the Costa Ricau specimens actually belong to delattrii. I think, how- 

 ever, they are really different. 



Smith- jCollec- 



soQianl tor's 



No. No. 



Sex 

 and 

 Atre. 



Locality. 



When 

 Collected. 



Received from 



Collected by 



30,491 

 .33,276 

 30,492 

 34,6.34 

 29,553 



San Jose, Costa Kica. 



191 

 123 



X)r V. Frautzius. 

 J. Carniiol. 



Berlin Museum. 

 Cab. of Lawrence. 



(29,553.) Labelled "i>'. dehdtrii." 



Basileuterus Tbelli. 



Muscicapa belli, Giraud, Birds Texas, 1841, pi. iv, fig. 1. — Basueuterus 

 belli, ScLATEK, P. Z. S. 1855, 65; 1859, 374 (Oaxaca).— Ib. Catal. 

 Am. Birds, 1861, 35, uo. 213 (Orizaba). — Sclater & Salvix, Ibis, 

 II, 1860, 31 (Guatemala). 



