130 COTINGID^. 



This Lathria is easily distinguished from all other members of the genus by its 

 uniform cinnamon plumage. It was first described by Mr. Sclater from a specimen 

 obtained in March 1859 by Boucard i at Playa Vicente in the State of Vera Cruz, near 

 the foot of the eastern slope of the mountain-range which traverses the State of 

 Oaxaca, and others from Guatemala collected by Skinner and Salvin. From Southern 

 Mexico it spreads over the low-lying forest-region of British Honduras and Guate- 

 mala, and ascends the mountains up to an elevation of about 2000 feet. It is absent, 

 so far as we know, from the forests bordering on the Pacific, both in Mexico and Guate- 

 mala, until we come to the State of Panama. In South America it is only known 

 in the extreme north-west of Colombia, in the State of Antioquia, where Salmon 

 obtained it at Nichi and Remedios in the Cauca valley ^^. 



L. unirufa frequents the interior of the forest, and is usually found perched among 

 the lower branches of the larger trees; its food consists principally of fruit, and, 

 according to Mr. C. J. Wood, of large Coleoptera which abound in the dry parts of the 

 forests at Turbo and the cordillera of the Isthmus of Darien ''. 



AULIA. 



Aulia, Bonaparte, Consp. Vol. Anis. p. 4 (1854) ; Scl. Cat. Birds Brit. Mas. xiv. p. 354. 



Aulia contains two species, of which one, A. rufescens, alone is found in our country, 

 and has nearly the same range as Lathria unirufa, though its northern limit does not 

 extend beyond Eastern Guatemala ; the other species, A. hypopyrrha, has a wide range 

 in South America, extending over the Amazons valley and South-eastern Brazil. 



In many points of structure Aulia resembles Lathria ; but the outer and middle toes 

 are more united at the base, the rictal bristles not so strongly developed, and the male 

 has peculiarities in its plumage, described below, which are not found in the other 

 allied forms. 



1. Aulia rufescens. 



Lipaugus rufescens, Scl. P. Z. S. 1857, p. 276'; 1861, p. 211'; Scl. & Salv. Ibis, 1859, p. 124'; 



P. Z. S. 1864, p. 361 ' ; Ex. Orn. pp. 5, 6, t. 3 " ; Lawr. Ann. Lye. N. Y. vii. p. 330 ' ; ix. 



p. 116'; Salv. P.Z. S. 1867, p. 149 ^ 

 Aulia rufescens, Scl. & Salv. P. Z. S. 1879, p. 519 ' ; Scl. Cat. Birds Brit. Mus. xiv. p. 355 ". 

 Laniocerca rufescens, Ridgw. Pr. U. S. Nat. Mus. x. p. 589 ". 



Cinnamomea, subtus pallidior ; uropygio et corpore subtus fasco transvittatis ; pectore efc abdomine maculis 

 rotundis nigris sparsim irregulariter notatis ; hj-poohondriis plumarum f ascicula flavarum utrinque ornatis : 

 alis nigricantibus, intus et extus cinnamomeo limbatis, tectricibus mediis et majoribus ad apicem cinna- 

 raomeis purpureo-nigro terminatis, subcaudalibus longissimis eodem modo ornatis : rostro corneo, pedibus 

 orylinis. Long. tot. 8'5, alae 4-4, caudae 3'6, rostri a rictu I'O, tarsi 0'7. (Descr. maris ex Santa Fe, 

 Panama. Mus. nostr.) 



$ mari similis, maculis abdominis nigris et alarum teotricum apioibus nigris absentib'us distinguenda. 



