INSECTS. 153 



Wings elongated, whitish grey, with an A-shaped 

 patch on the fore wings. Caterpillar : Rather more 

 than f of an inch long ; green, streaked with brown, 

 16-legged, with a brown head, and tapering at both 

 ends. Habits: The caterpillar lives during June in 

 the rye haulms, hollowing them out. As a result of 

 this, the ears remain hidden between the leaves and 

 leaf-sheaths, and it often happens that only the tips 

 of the awns appear externally. No grain is formed ; 

 the ears first become white and dry, and then fall off. 



The Hop Snout Moth (Hypena rostralis). 



Moth (Fig. 103) : Length rather less than | of an 

 inch ; span of wings 1^ inches, or more. Fore wings 

 usually brownish, somewhat scalloped on the fringed 

 outer margins ; a zigzag black line near the base ; in 

 the middle, near the front edge, a 

 patch bordered with white, and 

 behind this a dark longitudinal 

 streak. Hind wings dull grey, 

 with a silky sheen. Caterpillar : 

 At most one inch long, 14-legged, 

 very slender, green, with a dark fig. los.-The Hop snout 

 middle line and two white side ^oth csypenarostraus). 

 lines. Very active; wriggles about on the ground 

 like an eel. Habits : The moth is on the wing at the 

 beginning of August, the second generation in August ; 

 the latter hybernates in outhouses, barns, summer- 

 houses, etc. The eggs are laid on wild and cultivated 

 hops, also on stinging nettles. The caterpillars are 

 found on the hop plants, especially in June; they 

 sometimes entirely devour the leaves, with the excep- 

 tion of the nerves. In July they become pupse, either 

 between the leaves or on the soil, and are invested 

 in a grey cocoon. The moths appear at the beginning 

 of August, and give rise to a second generation of 

 caterpillars, from which, after the pupa stage, the 

 moths which live through the winter are developed. 



