BUFF-RUMPED TIT. 
Geobasileus reguloides nesa Mathews, Bull. Brit. Orn. Club, Vol. XL., p. 106, March 31, 
1920 : Bunya Mts., South Queensland. 
Distribution. Eastern Australia only ; South Australia, Victoria, New South Wales 
and South Queensland. 
Adult. Crown of head, back, and wings olive-green, the feathers on the top of the head 
abraided and less green than the back ; bastard-wing, primary-coverts, centres 
of greater coverts, and inner portions of flight quills dark brown with pale inner 
margin to the last ; upper tail-coverts and base of tail lemon-yellow ; remainder 
of tail blackish with smoke-white tips to the feathers ; fore-part of head and sides 
of face greyish- white with dusky specklings ; throat and breast yellowish- wh ite with 
dark minute frecklings ; abdomen, sides of body, thighs, and under tail-coverts 
yellow ; axillaries and under wing-coverts buffy-white, tinged with yellow ; under- 
surface of flight-quills dark brown with pale edgings ; lower aspect of tail similar 
to its upper-surface. Bill and feet smoky-brown, throat black, eyes pale yellowish- 
white. Total length 95 mm. ; culmen 9, wing 53, tail 39, tarsus 18. Figured. 
Collected on Bunya Mountains, Queensland, on the 3rd of October, 1919, and is the 
type of Geobasileus reguloides nesa (top left-hand figure). 
The sexes are alike. 
Adult male. General colour above olive-green with a greyish tinge, including the hinder- 
crown, hind-neck, sides of neck, back and scapulars, upper wing-coverts and outer 
aspect of the wings ; inner webs of flight-quills dark brown edged with buffy-white ; 
upper tail-coverts and base of tail buff ; terminal portion of tail blackish with 
smoke-grey tips to the feathers ; fore-part of head tinged with rufous and having 
dark fringes to the feathers it imparts a scalloped appearance ; sides of face olive 
with pale shaft-lines to the feathers ; rictal bristles feebly developed ; throat and 
fore-neck whitish minutely speckled with dark markings ; breast, abdomen, sides 
of body, thighs, and under tail-coverts yellowish-buff ; axillaries, under wing-coverts 
and inner edges of quills below pale buff, remainder of the quill-lining dark brown ; 
lower aspect of tail very similar to its upper-surface. Bill slate, feet brown, eyes 
white. Total length 99 mm. ; culmen 7, wing 53, tail 39, tarsus 17. Figured. 
Collected at Ringwood, Victoria, on the 27th of May, 1911, and is the type of 
Acanthiza reguloides connectens. 
Adult female similar to the adult male. 
Nest. Dome-shaped with side opening (about one inch wide) composed of grass and bark 
held together with spiders’ web. Lined with feathers or fur. Measurements 
4| inches long by 3| wide. 
Eggs. Clutch, three or four, white, with reddish spots, especially on the larger end, 17 mm. 
by 14. 
Breeding-season. August to December. 
The only note given at the introduction of this new species by Vigors and 
Horsfield reads : “ This species was met with by Mr. Caley in the same situation 
as the last (A. nana). Some specimens also in the collection were brought home 
by Mr. Brown from Port Jackson, where he obtained them in August, 1803.” 
Gould added : “ Many of the actions of this little bird offer a close 
resemblance to those of the Geobasileus chrysorrhous , like that species, it moves 
about in small flocks of from eight to fifteen in number ; when flushed shows 
the yellow or buff of the rump very conspicuously ; always spreads its tail while 
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