1884.] BUTTERFLIES OF THE GENUS TEUACOLUS. 435 



which are new to science and the others very rare ; four African, and 

 the rest Asian. Four belong to Mr. Butler's 5th group, all Arabian ; 

 the centre of the wings containing sun-patches. Of these T. halimede, 

 King, is the type ; the females vary much in the ground-colour of the 

 wings, and many are albinos. Three belong to Mr. Butler's Gth 

 group, type T. faustus, Olivier ; two Indian, one Arabian. The 

 females of this group also vary very much in the ground-colour of 

 the wings, and many are albinos. Five belong to Mr. Butler's 7th 

 group, of which there are two types — T. vestalis, Butler, and T. 

 amatus, Fabr. ; three Indian and one Arabian of the first, and one 

 Indian of the second. Five belong to the 8th group, of which there 

 are also two types — T. interruptus, Butler, and T. liagore, King; 

 three African and one Arabian of the first, and one Arabian of the 

 second. Four belong to the 9th group, type T. danae, Fabr., all 

 Indian. One to a type between .Mr. Butler's 9th and 10th groups 

 ■ — an African, having the shape and general appearance of the 

 former, and the orange patch of the latter. 



Group 5. Type Teracolus halimede, Klug. 



1. Teracolus ccelestis, n. sp. (Plate XXXIX. c? 2 , f. 1 & 2.) 



Near T. halimede, Klug. 



Aden, February and March, May to July. 



<3 . Above white. Fore wings with basal third and basal half of 

 costa irrorated with bluish grey ; band from centre of costa round the 

 apical margin to centre of outer border greyish brown, forming a 

 small apical patch, and fining down gradually both ways; a small 

 band of same colour half across the apical space from the costa, 

 differing in size in different specimens, and sometimes joining the 

 apical band in the middle, forming a large subapical white spot ; a 

 deep black transverse streak at end of cell ; all the veins greyish 

 brown ; and the whole space below the median nervules from the 

 basal irrorations outwards brilliant orange. 



Hind wing with a deep band of same colour in the costa, covering 

 the whole space above the subcostal nervule, sometimes extending 

 into the next interspace below, but not into the cell ; remainder of 

 hind wing pure white, and unmarked. 



Below milky white, with the apex of fore wings and costal portion 

 of hind wings suffused with pale orange. 



2 • Above bright primrose colour. Fore wings with the basal third, 

 costal border, and a deep marginal diffused band grey, a largish grey 

 spot at end of cell, seven grey spots across the disk, and the lower 

 half of the wing more or less covered with bright orange colour. 

 Hind wings with the same colour on the costal portion, otherwise 

 quite unmarked. 



Below pale primrose ; fore wings brighter than the hind wings, 

 with the irrorations on the basal third, the spot at end of cell, and 

 the discal spots showing through the wing. 



Hind wings with a faint indication of a discal series of spots. 



The above is the normal type ; some of the females have a fain 



