TROGONOPTERA. 26 1 



row of large green sub-marginal triangles, each intersected by a 

 nervure ; on the hind-wings the whole centre is green, In the 

 female, which is very rare indeed in comparison to the male, the 

 green is much more glossed with brassy, and is bordered within 

 with blue, which is seldom the case in the male, and the green 

 markings which disappear towards the costa in the male, are, in 

 the female, replaced by long bifid grey streaks between the 

 nervures. The body is black, with a broad crimson collar, and 

 with crimson spots on the sides of the thorax below the wings. 

 The names given to this species by Van Vollenhoven, and to 

 the genus by Mr. Rippon, were suggested by the resemblance 

 in colour to the beautiful black and green tropical American 

 birds called Trogons. 



The only other species of this genus, T. trojana, Staudin- 

 ger, has shorter and squarer green spots. It is found in the 

 Island of Palawan, and is at present very rare in collections. 



Nothing appearstobe known of the early stages QiT.brookeana. 

 Various interesting notes on its habits may be found in the 

 works of my friends Messrs. Distant and Rippon, which I do 

 not draw upon, as Sir Hugh Low has very kindly favoured me 

 with the following account of its habits as observed by himself 

 in Perak, &c. : 



" I first met with Ornithoptera brookeana on the Island of 

 Labuan, about the time that it was first collected by Wallace, 

 but I only saw one specimen of it. It was in an open space in 

 a magnificent forest, and I was not able to capture it, though 

 I saw it in the same place on two different days. The fine 

 jungle which at that time covered the island has since been 

 utterly destroyed, so that I imagine the insect is no longer to 

 be found there. I never met with it in the neighbouring 

 islands of Kuraman or on Pulo Daat, where I collected many 

 other fine species. I saw one specimen fly rapidly past me on 

 the mainland in the neighbourhood of Kina Balu, in an open 



