470 Monograph of the Genus Leptocera. 



Leptocera Mezierei ; (Leptocere de Mezieres), Mihi. 



This species is generally more vigorous than the preceding. 

 The longitudinal stripes of the corslet and the abdomen, as 

 well as some spots upon its flanks, instead of being of a silvery 

 white, as in the Lep. scripta, Dej., are of a ferruginous red, 

 which is very beautiful, particularly in the elytra. The re- 

 flections and the brown parts are not greenish, but of a beau- 

 tiful violet, and the eyes are reddish. All the rest is similar, 

 with regard to form and distribution of colours, except that 

 the latter are a little weaker. There is also the same punc- 

 turing on the elytra, and the same black and silver stripes 

 upon the abdomen. In some individuals the two intermediate 

 stripes of the corslet are white, whilst the other two are fer- 

 ruginous. 



The Leptocera Mezierei inhabits the Isle of Bourbon. It 

 has been found in considerable numbers at St. Suzanne by my 

 colleague and friend, Lesserbanche Mezieres. I was ex- 

 tremely glad of the opportunity of dedicating to a corre- 

 spondent, as zealous as he is learned, a species which appeared 

 to me to belong exclusively to the little island in which he is 

 cultivating, with so much success, the different branches of 

 natural history. 



Leptocera Beaumontii, Mihi. 



True to the livery of its genus, this little species has, like 

 its fellows, clear stripes upon a brown ground ; but Nature 

 has so many ways of combining and varying even things the 

 most alike in appearance, and which bear the most intimate 

 relation to each other, that this one differs still more widely 

 from the two preceding species than they do from each other. 



Upon a ground of a ripe brown colour, we perceive upon 

 each of the elytra, first, a stripe, which runs the whole length 

 of the suture, and which is larger than the analogous one in 

 the preceding species ; then succeed four elongated spots, of 

 which three are in the same line, or very nearly so, and the 

 fourth at the external angle towards the base. We do not 

 here observe the transverse stripe of the two preceding spe- 

 cies. Upon the corslet there are the same number of stripes, 

 but they are much larger, and indeed they so overpower the 

 ground, that of its tint, which is black, they leave scarcely 

 the thickness of a line. It should however be remarked, that 

 all these stripes and spots are of a warm dull colour. The 

 base of the elytra is greenish, particularly the external angle. 

 The abdomen is rather of a gold than silver colour. The legs 

 axe russet, and the antenna are very nearly the same colour, 



