INSESSORES. 215 



be filled up by those naturalists who may hereafter visit the 

 part of the country of which it is a denizen. 



Crown of the head, ear-coverts, and chest black, bounded 

 posteriorly by a narrow band of chestnut ; throat, centre of 

 the abdomen, and under tail-coverts white; flanks, back, 

 shoulders, and external webs of the primaries, secondaries, 

 and wing-coverts grey ; tail, bill, and feet black. 



Sp. 119. PACHYCEPHALA RUFOGULARIS, Gould. 



Red-throated Thickhead. 

 Pachycephala rufogularis, Gould in Proc. of Zool. Soc, part viii. p. 164. 



Pachycephala rufogularis, Gould, Birds of Australia, fol., vol. ii. 

 pi. 70. 



All the examples of this species of Fachycejphala I have 

 yet seen, were obtained by myself during my explorations in 

 South Australia, where I found it anything but abundant ; 

 in fact many days frequently elapsed without my procuring a 

 specimen. Its stronghold, probably a part of the vast interior, 

 has yet to be discovered. Prom the little I saw of it, I am 

 induced to believe that it is a very solitary bird ; for I usually 

 met with only one at a time, hopping about on the ground in 

 the thinly-timbered forest which surrounds the city of Ade- 

 laide ; but its actions were so particularly quiet, and its 

 plumage so unattractive, that it might easily be overlooked. 

 I never heard it utter any note, nor did I observe anything in 

 its habits and economy worthy of remark. It doubtless re- 

 sorted to the ground for coleopterous and other insects, the 

 remains of which formed the contents of the stomachs of 

 those I procured. 



The adult males and females differ considerably in the 

 colouring of their plumage ; the young males resemble the 

 females. The rusty colouring of the throat and face distin- 

 guishes this species from every other member of the genus. 



The male has the crown of the head and all the upper sur- 



