BY J. J. FLETCHER. 479 



about the head ; the inner surface of the legs like the ventral 

 surface ; the spinous pads blue ; a considerable patch of red ex- 

 ternally at the bases of the feet. The antennae are almost entirely- 

 red, dusky at the base and near the tips and sometimes on the 

 under surface, but the red predominates. 



Two specimens {^) crawling about 24 mm. ; one ($) crawling 

 44 mm., after death in corrosive sublimate 23 mm. 



From the examination of the above specimens the following 

 considerations seem to follow : (1) the prevalent colours are 

 indigo blue and red, either of which may predominate, the former 

 passing into black in some specimens and the latter into orange 

 or yellow : (2) there is a median longitudinal dark (i.e., blue or 

 its equivalent) linear stripe running down the back in the middle 

 of which is a fine microscopic sometimes interrupted line free from 

 dark pigment : (3) the pattern on the rest of the dorsal surface is 

 a more or less satisfactory indication of light and dark longitudinal 

 stripes, most conspicuous in specimens with a maximum of red. 



As regards colour the blue is brighter and more striking in the 

 specimens from Mt. Kosciusko than in any others I have seen. 

 They present some differences in detail in regard to the intensity 

 of the prevailing blue tint both in different specimens and some- 

 times in different parts of the body in the same specimen, more 

 especially on the ventral surface ; such differences are probably 

 in some measure due to the action of the spirit ; as spirit exerts 

 a considerable amount of bleaching power on both blue and red. 

 During life they were all probably darker in colour than they 

 are now. 



The median longitudinal dorsal dark linear stripe is without 



the nodose character so common in Illawarra specimens in which 



it is very striking when the rest of the dorsal surface is not very 



dark. Down the middle of it there seems to be in all cases a very 



line sometimes interrupted microscopic line free from pigment. 



This of course is only another way of speaking of it as a light or 



white line edged with black. I prefer the former because the 

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