II. — On a peculiar form of Flycatcher from 

 Sarawak, Borneo. By Ernest Hartert. 



On Mount Poi (also called Poe) to the west of the town of 

 Kuching Dr. E. Mjobej'g collected a pah- of Flycatchers, which 

 offer an interesting puzzle. 



Tliey are adult birds and were shot in October at elevations 

 of 5200 and 5300 feet. The male agrees with the males of 

 Dendrohiastes hyperytlirus paUidipcctus (Hart.) from the 

 island of Batjan ; at least I cannot see a difference, though 

 possibly some slight difference might become obvious if a 

 series could be compared. The female, however, is on the 

 upperside blue-grey, while the females of D. h. pallidipectus 

 are brown. The female from Mount Poi is very much like 

 that of D. li. alifurus Stres. from Buru, but the throat and 

 breast are lighter, not so brownish; tliere is more white on 

 the abdomen, and the upperside is slightly paler blue-grey. 

 The male of D. h. rnalayana is much darker on the underside, 

 and the female has a brownish upperside. This Flycatcher 

 was previously found on Mt. Poi by the late Alfred I'verett, 

 and there is a young bird in the Tring Museum. I propose 

 to call the Poi subspecies : — 



Dendeobiastes hyperythrus miohergi subsp. nov. 



Type female ad. Mt. Poi 5300 feet, 30th September, 1923, 

 in the Sarawak Museum. 



The occurrence on Mt. Poi of a different form is very 

 interesting, as D. hyperyfhriis fnaJayoJins (Ogilvie (xrant) 

 is common on Kinabalu ; the range of this latter extends 

 from Sumatra and the Malay Peninsula to S. Celebes 

 (Bonthain Peak), but specimens from the latter locality have 

 as a rule longer wings, male 63-65.5, female 60, 61 mm. while 

 in mnJayana from other islands they are in the males only 

 exceptionally longer than 61, mostly under 60, females under 

 60 mm. A better series from S. (I^elebes must, however, be 

 compared, to confirm these differences. 



Sar. Mus. Journ., No. 8, 1925. 



