296 Hans von Berlepsch on new Trocliilidse. 



I must remark that my friend Dr. Taczanowski, of War- 

 saw, first pointed out to me in what way the Ecuadorian bird 

 differed, in his opinion, from a series of skins of true D. iris 

 collected near Chachapoyas, N. Peru, by Jean Stolzmann ; at 

 the same time suggesting to me to describe the Ecuadorian 

 form as a new species. The chief distinction, as expressed in 

 the above diagnosis, will be found in the different shade of the 

 front part and the sides of the pileum, w^here, in the adult male 

 of true D. iris, the lustre is decidedly more crimson, while a 

 more golden, or even a greenish-golden, hue is observable 

 on D. iris buckleyi, especially on the front. The amethys- 

 tine gem-spot in the middle of the throat is of a lighter shade, 

 and somewhat mixed with a greenish tint, which is not to be 

 seen in true D. iris. The throat and breast are of a lighter 

 and more golden green, while they show a deeper bluish- 

 green lustre in D. iris. It appears also that the green of 

 the breast comes further down in the Ecuadorian bird, being 

 more restricted in the Peruvian form. The hind neck and 

 upper part of the back are of a rather lighter shade, more of 

 a greenish than of a blackish-bronze colour. The castaneous 

 parts of the body, especially the abdomen, are of a darker 

 shade, and the tertiaries are not margined exteriorly with a 

 black border, which seems to be characteristic of true D. iris. 



5. Chlorostilbon comptus, sp. nov. 



<^ ad. pileo omnino squamoso splendidissime aureo- 

 cupreo, gula pectoreque splendide aureo-viridibus, abdo- 

 mine purius aureo micante : corpore superiore reliquo 

 semilucente aureo-viridi cupreo perfuso, tectricibus 

 caudse superioribus et inferioribus purius viridibus : 

 caudse profunde furcatte rectricibus chalybeo-nigris 

 nitore viindescente : rostro penitus nigro. Long. tot. 

 83, al. 48|, caud. 29^, rostr. 13f , caudse furca 7^ mm. 

 Obs. Ch. melanorhyncho, Gould, ex Quito, mandibula peni- 

 tus nigra affinis, diflfert pileo splendidissime aureo-cupreo nee 

 aureo-viridi, dorso magis cupreo perfuso, abdomine magis 

 aurato, rectricibus paullo angustioribus et viridescentioribus, 

 necnon rostro paullo breviore et graciliore, alis paullo brevi- 

 oribus, rectricibus tamen longioribus. 



