27 



creamy-buff. Lower mandible hlach, with a limited area of browmsh- 

 orange at the base. From a specimen in my collection shot at Rye 

 Beach, N. H., July 24, 1872. Autumnal specimens in my collection 

 have the lower mandible black, the under parts much more strongly 

 tinged with yellow than the adult, and the wing-coverts faintly tipped 

 with ferruginous. 



85. Contopus virens. 



First pVwmage : male. Above olive, with a brownish cast, the feathers 

 of the crown and interscapular region with a faint edging of pale fulvous, 

 those upon the nape having a much broader one of dull ash, producing a 

 well-defined band or coUar. Wing-bands light reddish-brown. Beneath, 

 with sides of throat, breast, and body, light olivaceous-ash ; rest of under 

 parts pale sulphur-yellow. From a specimen in my collection taken at 

 Upton, Me., August 8, 1874. The young in autumnal plumage differ 

 from adults in having the wing-bands pale fulvous, the under parts of a 

 slightly deeper yellow. 



86. Empidonaz acadicus. 



First plumage. Above nearly pure oUve, with indistinct narrow trans- 

 verse bands of darker. Wing-bands pale reddish-brown. Under parts 

 soiled yellowish- white, with an olivaceous cast on the sides of the breast. 

 From a specimen in my collection shot by Dr. J. M. Wheaton, at Colum- 

 bus, Ohio, June, 1876. 



87. Ximpidonaz pusillus trailli. 



First plumage : male. Above olive-brown, the feathers of the crown 



with darker centres. Wing-bands light reddish-brown. Throat, breast, 



and sides ashy, tinged with olive upon the breast and sides. Abdomen, 



anal region, and crissum pale sulphur-yellow. Distinguishable from E. 



acadicus in first plumage by the darker color of the upper parts, especially 



of the crown, and by the entire absence of the narrow transverse bands 



upon the back. From a specimen in my collection shot at Upton, Me., 



July 21, 1874. 



88. Empidonaz minimus. 



First plumage: male. Similar to the adult, but with a stronger oUve 

 cast, and a faintly indicated collar of ashy-brown across the nape. Wing- 

 bands light reddish-brown. Beneath almost precisely similar to the adult, 

 with perhaps a slightly stronger yellowish cast upon the abdomen and 

 crissum. Distinguishable from^. trailli and E. acadicus in corresponding 

 stages by the decidedly paler and less yellowish under parts ; especially 

 by the nearly clear ashy on the sides of the breast. From a specimen in 

 my collection taken at Cambridge, Mass., July 2, 1872. Other specimens 

 in first plumage before me differ little from the one above described, but 

 autumnal specimens, singularly enough, are much yellower below and 

 more olivaceous above. 



