142 ZOOLOGY. 



difficult than in the preceding species, since the young 

 caterpillars live independently, and their colour 

 makes it difficult to recognize them on the green 

 cabbage leaves. 



The Green- veined White (Pieris napi). 



Butterfly (Fig. 98) : As large or somewhat smaller 

 than the preceding species. Wings milky white on 

 their upper side ; fore wings dusted with black on 

 their front margin, tips, and ends of the ribs. Two 

 spots on the middle of the fore 

 wing in the female, one or none 

 in the male. Under side of 

 the hind wings yellow; under 

 side of the veins dusted with 

 greenish-grey. Caterpillar: A 

 little over an inch. Dull 

 bluish - green, with minute 

 blackish tubercles above, and 



Fig. 98.-The Green-veined whitish OneS beloW. A ycUoW 



White (Pirns Bopi). longitudinal line on each side 



connecting the black spiracles, which are bordered 

 by reddish yellow. Very like the preceding species 

 in the larval condition. Habits as in the preceding 

 species, but this is less common. 



Family : Noctuidse {Owlet Moths). 



Night-flying moths, of medium size and dull colour, 

 with smooth-haired bodies. Antennee long and thin, 

 thread like, — comb-shaped only in the males of a few 

 species ; wings powerful, lie in a roof -like way when 

 at rest ; almost always a wing-hooklet. Caterpillars 

 usually hairless ; mostly with five pairs of pro-legs, a 

 few with four or three pairs. The owlets pair at 

 night; they also fly about during the day, even in 

 bright sunshine. Flight strong and rapid, but always 

 in fits and starts. Almost all species lay their eggs 



