BY J. J. FLETCHER. 473 



the situations named when examined in a strong light, yet it is 

 excessively small in amount. 



Three specimens. 



(b) In general appearance like the foregoing ; for though there 

 is in these a not inconsiderable addition of orange (or yellow) it 

 is so inconspicuous, occurring in very small and for the most part 

 isolated areas, as to be almost inappreciable by the naked eye. 

 This additional amount of orange makes its appearance on ( 1 ) 

 the basal portions of some of the pale papillae ; (2) in the ground 

 colour of the alternate ridges bearing chiefly secondary papillje ; 

 and (3) in the ground colour of the legs. Not on all the papillse, 

 however, either in the lozenge-shaped patches or elsewhere is orange 

 present ; some in both cases are still obviously pale blue. On the 

 dorsal surface orange is present round the bases of some of the 

 secondary dark blue papillae on the ridges which alternate with 

 those bearing the pale primary papillae, either as a small ring, or it 

 may encroach a little more so as occasionally to join the similarly 

 coloui'ed area of a contiguous papilla, but considerable patches are 

 not formed as in specimens in which there is relatively still more 

 orange ; not all the papillae on a given ridge however have orange 

 round their bases, though quite a number with orange may occur 

 consecutively, and the number of secondary papillee so modified is 

 greater than the number of pale papillae on the alternate ridges ; 

 an increased amount of orange is not so noticeable towards the 

 extremities of the body as in the intervening region. The orange 

 on the legs is very noticeable, the patches being somewhat larger, 

 more numerous, and more of the legs show them. 



Fourteen specimens. 



(c) Orange or red is present in sufficient quantity to be readily 

 perceptible to the naked eye, and to give something like a definite 

 pattern ; the diflference between these and the foregoing ones being 

 due to the increased amount of red with a corresponding increase 

 in warmth of tint which afiects both the papillae and the ground 

 colour, and in addition the antennae and the ventral surface also ; 



