154 The Ottawa Naturalist. [November 



which had been taken by him, in the latter part of September, 

 at Niagara Glen, Ont. Both of these larvae were different in 

 appearance to the one described above, being distinctly reddish 

 between the segments and almost without any yellow in the 

 incisures. One of the specimens found by Mr. Williams was 

 feeding on violet, which I think is a new food plant for the larva. 

 In the Canadian Entomologist, June, 1882, Dr. William 

 Saunders sa3^s: "The larva of this insect is comparatively 

 abundant in the autumn throughot;t most of the northern United 

 States and in many parts of Canada." Of late years, however, 

 these caterpillars have not been met with in Canada in any 

 numbers; in fact, the three larvae mentioned in this article are 

 the only specimens which have been found in Canada, to the 

 writer's knowledge, during the last fifteen years. One of the 

 specim^ens found bv Mr. Williams was given to the writer. It is 

 now inflated and in the Government collection at the Central 

 Experimental Farm. 



Female Moth (after Riley). 



The Great Leopard Moth is the largest and one of the most 

 beautiful of the moths of the interesting Family Arctiidae, or 

 Tiger Moths. The wings of both sexes are white. The rings 

 and spots on the upper wings are black, or dark brown. Some 

 of the rings near the base are covered with bright, steel-blue 

 scales, and in some specimens the rings are filled in so as to look 

 like black blots. The hind wings of the female, as shown in the 

 figure, have more of the black markings than have those of the 

 male. As is the case with many other arctian moths, the mark- 

 ings on all the wings of this species, however, are variable in 

 number and shape. The abdomen is of a steel-blue colour above, 

 marked, m.ore or less down tlie middle and along the sides, with 

 yellow or orange. The thorax is white, marked with spots or 

 rings of black, and spots of steel-blue, the latter being in the 

 .centre. The head is white above and steel-bhie in front. The 



