■■ collected in Dutch New Guinea. 137 



The type of M. dichroa Gray is in the British Museum, 

 and was procured by Wallace at Dorei, Geelvink Bay, which 

 has been fixed as the type-locality. 



Owing to the Ai-ariatiou in the length of the wing, Messrs. 

 Rothschild & Hartert share Count Salvadori's belief that in 

 the fully adult stage the female has the upperparts black 

 as well as the male. I feel sure, however, that this is a 

 mistake, as our extensive series of specimens, as well as those 

 in the Tring Museum collected by A. S, Meek, point to an 

 exactly opposite conclusion. Individuals undoubtedly vary 

 considerably in size^ as the following measurements will show. 



In 12 males listed above the wing measures (3) 82, 83 ; 

 (4) 84, 85, 86, 87, 88 mm. 



In four females listed above the wing measures 80, 81, 82, 

 83 mm. 



Other specimens in the British Museum measure : — 



One male, Amberbaki, wing 87 mm. 



One male, Dorei (type of M. dichroa), wing 82 mm. 



One male, Kumusi River, wing S2 mm. 



One female, Amberbaki, wing 81 mm. 



One female, Collingwood Bay, wing 80 mm. 



The young female (No. 1105) has all the feathers on the 

 chin and throat grey with dark middles, and the forehead 

 dark slate-grey like the crown ; in the adult female these 

 parts are black. 



Two eggs of this species are of a somewhat pointed oval 

 shape and are almost devoid of gloss. The shell is white 

 marked all over with dots and small spots of light red and 

 })urplish-grey ; these become larger and much more numerous 

 round the larger end, where they form an irregular cap or 

 zone. They measure respectively 24'5 X 17, 24*5 x 16"5 mm. 



" This Black and White Flycatcher was by no means 

 plentiful, and was generally observed among the lower 

 branches and undergrowth. A nest taken on the 23rd of 

 September, 1910, was built in the fork of a sapling situated 

 in the depths of the jungle, and placed some four feet above 

 the ground. It was a deep cup composed of green moss and 

 lined with fine dark rootlets. It contained two eggs. The 



