16 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 64. 



the wide range of the species, but with only one specimen it is im- 

 possible to say whether this difference is constant. 



20. CHALCOPHAPS STEPHANI STEPHANI Reichenbach. 



One male immature, Manembo Nembo, June 22, 1916 ; one male and 

 three females, Pinedapa, January 11-27, 1918. 



ClialcopJiaps stephani is a forest bird, preferring forests which offer much 

 shade so that the ground beneath remains damp even during dry weather. 

 When feeding they walk and act much as domestic pigeons do and when, 

 alarmed often remain motionless for a moment and then fly up rapidly, usually- 

 causing a rustle amongst the leaves. Generally they fly but a short distance 

 and then alight again, usually close to the ground (within 6 to 20 feet of the 

 ground as a rule). In life the bill, which is weak and soft, is yellow; eyes- 

 dark brown ; Skin about eyes dull reddish ; feet and tarsus reddish. The food 

 of one examined consisted of fruit and insect remains. — H. C. R. 



21. DIOPEZUS TRISTIGMATA (Bonaparte). 



One male, immature, Temboan, July 22, 1916 ; one female, Laboea 

 Sore, November 14, 1916: five males and four females, Pinedapa^ 

 January 19-February 8, 1918. 



The above series shows quite a little variation within certain limits. 

 Some specimens are much darker or browner than others. The ma- 

 jority of the skins have the upper-parts washed with an iridescent 

 green, only a little iridescent purple showing on the upper mantle 

 in certain lights, while a few birds have the mantle strongly tipped 

 with a deeper iridescent purple and very little green. Some speci- 

 mens have the purple nuchal band interrupted behind, but in the 

 majority it is entire, though often very narrow posteriorly. The- 

 yellow of the chest is more extensive in some specimens than in 

 others. In one specimen (No. 251732) the greater wing-coverts on 

 the right side are largely white, but not on the other and as this is 

 one of the specimens with deep iridescent purple tips to the mantle,, 

 the yellow of the chest most highly developed, the purple nuchal 

 band very narrow, if not interrupted behind, and the plumage of 

 the upper parts dark, I take it to be a very old bird. 



The Temboan specimen (No. 249638) is immature; the feathers 

 of the back and wing-coverts are edged with rusty, the breast on 

 each side has some scattered russet-vinaceous feathers, and the 

 nuchal band is broad throughout, light seal brown, with only one or 

 two metallic purple feathers appearing; otherwise it is like the 

 adult, except the iridescent purple of the mantle is very faint and 

 the tail pattern is different as mentioned beyond. 



The Laboea Sore female (No. 250088) has a smaller bill than those 

 from Pinedapa. 



A female from Pinedapa (No. 251736) is unique in the series. 

 The jugulum and breast are dark gray and the breast is crossed 



