Some British Moths Described 
is getting low. There is a variety with silver spots on 
the hind-wings. Expanse, slightly over 1 inch. 
Family Cosstp#. 
Cossus ligniperda : the Goat Moth (Plate IV., Fig. 1). 
—A wood-boring species affecting Willow, Ash, Poplar, 
and Elm. The presence of the larva gives rise to an 
unpleasant odour, hence the name. The moth may be 
found resting on tree-trunks during July,-and is not 
uncommon in the South. Expanse, 24 to 3 inches. 
—Zeuzera pyrina: the Wood Leopard (Plate IV., 
Fig. 2).—Also a wood-borer. Happily, these insects 
are not numerous enough to be a serious menace to 
our fruit or forest trees. The moth appears during 
July and August. Expanse, about 24 inches. 
Family Liparipé. 
Porthesia similis: the Gold Tail (Plate IV., Fig. 6). 
—Our figure is that of a male in many specimens of 
which there is a distinct black spot near the bottom 
angle of the fore-wing. The larva is black, with a red 
line along the sides, then a frosted white line nearer the 
back, and lastly a double red line along the back. It 
is hairy, and to sensitive skins the hairs are extremely 
irritating. Larva (Plate VI., Fig. 2) September to 
May, on hedges and fruit-trees ; moth in July. Ex- 
panse, about 14 to 14 inches. 
Ocneria dispar: the Gipsy Moth (Plate IV., Fig. 7). 
—Our figure is of a male; the female is larger, and of a 
light grey colour, At one time common, now scarce, 
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