srizA. — MYOsnzA. 459 



hinder crown, sides of neck^ and upper throat white ; lower 

 throat black ; sides of the body pale ash-brown ; middle of 

 abdomen and under-tail coverts cream-white ; inner under wing- 

 coverts and axillaries white edged with yellow ; marginal under 

 wing-coverts and edge of wing yellow; under surface of flight- 

 quills and lower aspect of tail pale greyish brown. 



Total length 15G mm., exposed culmen 12, wing 80, tail 54, 

 tarsus 24. 



The male described was collected on the Abary River in July 

 1906. 



Adult female. Differs from the adult male chiefly in the absence 

 of black on the throat and scarcely any yellow on the under 

 surface. "^Ving 83 mm. 



Breeding-season. Unknown in British Guiana. 



Nest. Unrecorded in British Guiana. 



Eggs. Undescribed from British Guiana. 



Range in British Guiana. Abary River {McConnell collection). 



Extralimital Range. Trinidad, Aruba Island^ Venezuela, 

 Colombia, Central America to the United States of North 

 America. 



JIahiis. Unrecorded in British Guiana. 



Genus MYOSPIZA Uidgw. 

 jlfi/ospiza Ki(lu:\vay, Auk, xv. p. 22 t, 1S9S. Type M. hiimeralis CBosc.). 



Fit^. 1 7'i. — Mi/insjiiza liunierah's. 



Ill tbi^ gcmis the Iiill is also [xjinfed and somewhat stout at the 

 base, where the depth and width ai'o about (mhiuI, which is about 

 thi<'e-tirth> the h-ngth of the exjxiscd culnicn. The wing is 

 abuost sijUMiX', the second, third, louith, and tifth primaries 

 hjngest and equal, the first about e(|iial in length to the sixth. 

 Tito tail is t;(|uare at the tip ami about tsvo-thirds the length of 



