INSESSORES. 251 



structure is rendered nearly as firm as if it were bound with 

 wire." 



The eggs, which are two in number, are ten hues long and 

 seven lines broad, of a bluish white, blotched and spotted all 

 over with olive and greyish brown, the spots of the latter hue 

 being less numerous and more obscure ; the spots inclining 

 towards the form of a zone at the larger end. 



The male has the whole of the plumage rich deep glossy 

 greenish black; irides red; bill greyish blue at the base, 

 black at the tip ; tarsi greenish grey. 



The female has the top and sides of the head and the back 

 of neck rich deep glossy greenish black ; the remainder of the 

 upper surface, wings, and tail rusty brown ; and the whole of 

 the under surface white. 



Total length 7^ inches ; bill l^ ; wing 3^ ; tail 3^ ; tarsi f . 



Genus ARSES, Lesson. 



The members of this form are allied to those of Monarcha, 

 and should be placed betAveen them and the TchitrecE. One 

 species inhabits Australia, and others are found in the Aru 

 and neighbouring islands. 



Sp. 143. ARSES KAUPI, Gould. 



Kaup's Flycatcher. 

 Arses Kaupi, Gould in Proc. of Zool. Soc, part xviii. p. 278. 



Arses Kaupi, Gould, Birds of Australia, foL, Supplement, pi. 



I have some little doubt as to the propriety of placing this 

 bird in the genus Arses, but rather than multiply the number 

 of genera, perhaps unnecessarily, 1 have assigned it a place 

 therein, as it accords more nearly with that form than with 

 Monarcha, the only other genus to which it presents alliance. I 

 am happy to have this opportunity of paying a just compli- 

 ment to my friend Dr. Kaup of Darmstadt, an ornithologist 



