IG8 Mr. 11. Ridgway on the Gemis Ilelraiuthophaga. 



reddish browu, chielly round the larger end. Several of the 

 species (notably ruficapilla, Virginia, luci<s, and celata) are 

 pleasing though rather weak-voiced songsters, while the song 

 of H. pinus closely resembles the monotonous lisping of certain 

 grasshoppers. 



The species and geographical races may be distinguished 

 by the following characters : — 



A. Wings variegated with white or yellow. Forehead yellow. 



a. Wing with two white bands ; belly yellow ; back olive-green. 



1. H. PINUS. Throat gamboge-yellow ; auriculars yellow, bordered 



above by a short postocular streak. Eastern province of the 

 United States, in summer. 



2. H. LAWRENcn. Throat deep black ; auriculars deep black. 



Eastern Province of the United States (New Jersey, Herrick). 

 h. Wing with a large patch of yellow covering both rows of coverts ; 

 belly white ; back bluish grey. 



3. H. CHRYSOPTERA. Throat deep black ( c? ) or dull grey ( $ ) 



auriculars deep black (J), or black along upper edge ($). 

 Eastern Province of the United States. 



4. H. LEUCOBRONCHiALis. Throat pure white ; auriculars white, 



bordered above by a short postocular streak. Eastern Province 

 of the United States (Eastern Massachusetts, Bretcster). 



B. Wings not variegated. Forehead not yellow (except in H. bachmani). 



a. Forehead yellow ; inner web of the two outer tail-feathers with a 



terminal white patch. 



5. H. BACHMANI. Above olive-green ; forehead and belly gamboge- 



yellow ; crown grey, in the d bordered anteriorly by a black 

 bar ; throat black ( J ) or dusky greyish ( $ ). Eastern Province 

 (Southern Atlantic States) and Cuba. 



b. Forehead greyish ; inner weba of outer tail-feathers without distinct 



white patches. 



6. H. RUFICAPILLA. Above olive-green ; the head greyish ; lower 



parts gamboge-yellow ; a whitish orbital ring. Male with a 

 concealed patch of chestnut on the crown. North America (rare 

 in the Western Province). 



7. H. VIRGINI.S;. Above grey, beneath whitish ; upper tail-coverts 



yellowish gi'een ; lower tail-coverts and patch on the jiigulum 

 gamboge-yellow ; crown with a concealed patch of chestnut 

 (sometimes obsolete in the $ ). Western Province. 



8. H. LUCiiE. Above grey, beneath butfy white ; crown-patch and 



upper tail-coverts chestnut. Western Province (south-western 

 district). 



9. H. CELATA. Above olive-green, beneath pale yellowish : crown 



