250 REVIEW OF AMERICAN BIRDS. [PART I. 
be delattrii, are only varieties of rufifrons; and I am now un- 
acquainted with any Mexican examples of the species, although 
quoted by Dr. Sclater as from Orizaba. 
| 
Smith- Collec-| Sex 
Fake 25 : When ; 
pan tae aS nocality Collected: Received from Collected by 
30,700 a6 Bi Coban, Vera Paz, | Noy. 15, 759. O- Salvin.) 9") 1) eaercerrare 
[Guat. 
Basileuterus mesochrysus. 
Basileuterus mesochrysus, ScuateR, P. Z. 8. 1860, 251 (Bogota). 
Basileuterus delattrii, Scuarer, P. Z. 8. 1855, 144 (Bogota).—Cas. Jour. 
1860, 325 (Costa Rica).—? Lawrence, Ann. N. Y. Lye. 1861, 322 
(Panama). 
Hab. Bogota, to Costa Rica? 
(No. 30,491.) General characters of B. delattrii, but the wings much longer 
and more pointed, nearly equal to the entire tail, which is shorter and less 
rounded; the Ist 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 
crown does not extend so far back on the head, and hence not behind the 
ears. The upper parts are of a purer olive; beneath of a clearer yellow, the 
crissum being unicolor with the belly. The quills and tail feathers are darker. 
Total length, 4.85 ; wing, 2.28; tail, 2.50; graduation, .24; difference be- 
tween Ist and 4th quills, .24; length of bill from nostril, .50; along gape, .55 ; 
tarsus, .85. 
It is possible that a larger series of typical B. delattrit may show 
that the differences mentioned above are not characteristic, and that 
the Costa Rican specimens actually belong to delatirit. I think, how- 
ever, they are really different. 
Smith-|Collec-| Sex When 
sonian| tor’s | and Locality. Collec Received from Collected by 
5 ollected. 
No. No. | Age. 
30,491 | 131 .. |San Jose, Costa Rica, shay Dra ve Franitzins: +|\) Peat 
33,276 ae rofl re Jan. 12,"62:)|' J. Carmidl.., 9 |} Seip 
30,492 15 ho Sf 500 OE eae ee ty A rete 
34,654] .. a3 “ La J (eT 0) 4) eae 
29,553 | 191 ze ec Soe Berlin Museum. | «ee 
4 123 -- | Bogota. aisid Cab. of Luwrenee.| ss. sie 
(29,553.) Labelled ‘‘B, delattrit.”’ 
Basileuterus belli. 
Muscicapa belli, Giravp, Birds Texas, 1841, pl. iv, fig. 1.—Basileuterus 
belli, Scuarer, P. Z. 8. 1855, 65; 1859, 374 (Oaxaca).—Is. Catal. 
Am. Birds, 1861, 35, no. 213 (Orizaba).—Sciater & Saxviy, Ibis, 
II, 1860, 31 (Guatemala). 
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