410 MR. F. SMITH ON NEW SPECIES OF ICHNEUMONS. [May 1, 



The size differs a good deal, as well as the form of the bill, which 

 in some examples appears more flat and enlarged, in others more 

 slender, differences, however, not to be expressed by measurements. 



(black form). 



(black and white form). 



(rufous form). 



M. nigra has been found likewise on the Friendly and Society 

 Islands ; Dr. Graeffe, however, did not meet with this species on 

 the Tonga Islands (vide Finsch, Journ. f. Oru. 1870, p. 119). 



5. Ptilinopus dupetitthouarsi (Neboux) ; Finsch & Hartl. 

 Ornith. Central-Poly n. p. 129. 



Old and young birds of this pecuhar species ; the latter show 

 already the whitish sincipital mark so characteristic of this species. 

 Bill horn-green ; eye-ring bright red ; feet pale red. 



6. Ptilinopus mercieri (Des Murs); Finsch & Hartl. Ornith. 

 Central-Polyn. p. 128. 



Two specimens. 



This very rare fruit-pigeon, which I have now had the pleasure 

 of examining for the first time, is a very remarkable species, distin- 

 guished at once by the extent of dark purple red on the liead, which 

 occupies not only the forehead and vertex, but also the lores, extend- 

 ing thence in a large patch to the base of the lower mandible. From 

 above the eye the red cap is surrounded by a broad circle of bright 

 yellow ; the chin and throat are yellowish ; breast and remaining 

 under surface, inclusive of the lower tail-coverts, of a uniform dark 

 yellow. 



Bill horn-green; eye-ring red; feet dirty purplish. 



It is very interesting to find in one and the same group of small 

 islands two such very different species of Ptilinopus. 



4. Descriptions of four new Species of Ichneumonidae iu the 

 Collection of the British Museum. 13y Frederick 

 Smith. 



[Eeceived April 1.3, 1877.] 



(Plate XLIV.) 



Of the Ichneumons which I now describe three are probably the 

 most remarkable species to be found in the entire family. Two of 

 them I cannot assign to any genus yet established ; a new one has 



