of the American (/enus Dendrceca. 89 



(1.) Dendrceca virens. 

 Motacilla virens, Gm. ; Dendrceca virens, Baird, B,N. A. p. 267. 

 S . Dorso olivaceo, pileo concolore, capitis lateribus flavis : gut- 

 ture toto nigvo : abdomine albo, pectore flavo induto^ late- 

 ribus nigro flammulatis. 

 $ . Mari sirailis^ sed coloribus dilutioribus^ gutture flavo {Baird). 

 Hah. Eastern United States to Missouri, descending south- 

 wards through Mexico to Guatemala. 



(2.) Dendrceca occidentalis. 

 Sijlvia occidentalis, Townsend. Dendrceca occidentalis, Baird, 

 B.N. A. p. 268. D. chrysoparia, Sclater, P.Z.S. 1862, 

 p. 19, & Cat. Am. B. p. 358. D. niveiventris, Salvin, P. Z. S. 

 1863, p. 187, pi. xxiv. fig. 2. 



c? . Dorso cineraceo, plumis nigro variegatis : pileo toto cum la- 

 teribus capitis Isete flavis, nuchse plumis nigricante termi- 

 natis : gutture circumscripte nigro : abdomine toto pure 

 albo, lateribus immaculatis. 

 2 . Mari similis, sed coloribus dilutioribus gula media vix nigri- 

 cante. 

 Hab. Pacific States, descending southwards to Oaxaca {Bou- 

 card) and Guatemala (Salvin). 



(3.) Dendrceca townsendi. 

 Sylvia townsendi, Nuttall. Dendrceca townsendi, Baird, B.N. A. 

 p. 269. 



6 . Dorso olivaceo, pileo nigro : capitis lateribus flavis, plaga 

 auriculari nigra : gutture nigro : abdomine medio flavo, in- 

 feriore albo, lateribus nigro flammulatis. 

 $ . Pileo dorso concolore, gutture et ventre sum mo flavesccntibus, 

 pectore et lateribus nigricante flammulatis. 

 Hab. Pacific States, descending southwards to Mexico, Oaxaca 

 [Boucard), and Guatemala [Salvin). 



(4.) Dendrceca chrysoparia. 

 Sclater & Salvin, P. Z. S. 1860, p. 298; Salvin, abis,' 1860, 

 p. 273. 



6 . Dorso et pileo toto supra nigris, stria angusta verticali flava : 



capitis lateribus flavissimis, stria per oculos nigra : gutture 



ad medium pectoris nigro : abdomine albo, lateribus nigris 



flammulatis. 



$. Supra olivacea; gutture et pectore albidis, nigro variegatis. 



Hab. San Antonio, Texas [Heernmnn), descending southwards 



to Guatemala [Salvin). 



