of the Gen us Tin a mus. 579 



edges of primaries ash-grey. " Bill black, below light grey ; 

 feet grey ; iris brown " (Miketta and Fleming). 



Total length 367 mm.; culmen 37 ; wing 237 ; tail 80; 

 tarsus 70. 



Type. ? . Salidero, North Ecuador ; in British Museum. 

 ^ and other specimens in British Museum and in the 

 Kothschild Museum, Tring. 



This bird is recorded by Dr. Hartert as T. latifrons (Nov. 

 Zool. ix. p. 599, 1902), but it is quite different from the two 

 examples of that species, and is undoubtedly closely allied to 

 T. robustus, Sclater, from Central America. 



The following key will aid to future determination : — 



Key to the Species. 



A. General colour slate-blue, washed more or less 



with olive. 



a. Olive wash absent ; broadly barred with black 



on the upper surface, including the mantle 

 and entire bach ; sides of abdomen faiutly 

 barred with buff tao tao, 



b. Olive wash present ; sides of abdomen boldly 



barred with buff and dark brown tao kleei. 



c. Olive wash predominant; upper surface finely 



vermiculated, the cross-bars more obscure 



and restricted to the lower back and rump, tao septentrionalis. 



B. General colour above olive-brown or chestnut- 



brown. 



d. Smaller : wing less than 200 mm. ; with 



bufly-white spots on the wings yuttatus. 



e. Larger: wing more than 200 mm.; wings 



without bufly-white spots. 



a'. Crown of head olive-brown ; a longitu- 

 dinal ochraceous line on each side of the 

 hind neck solitarius. 



b'. Crown of head bright rufous ; no lines on 



the hind neck ; back dark olive-brown. . major ruficeps. 



c'. Crown of head chestnut ; back dark olive- 

 brown ; bars on wing-coverts very pro- 

 nounced major castaneiceps. 



d'. Crown of head chestnut ; back pale olive- 

 brown ; bars on wing-coverts almost 

 obsolete major peruvianus. 



e'. Crown of head cinnamon-rufous ; back 



pale olive-brown major serratus. 



f. Crown of head maroon-chestnut ; back 



pale olive-brown major major. 



g'. Fore part of head slate-colour ; nape chest- 

 nut latifrons. 



h'. Entire crown of head black robustus ine.vpectutus. 



The ranges cannot be accurately determined, however, by 

 the few specimens which we have from each locality, which 

 show considerable variation. 



