affecting tJie Peas and Beans. 
441 
The eggs are laid in preference upon clothes, blankets, carpets, 
&c. upon which the active wriggling larvcc feed, forming cases of 
the eaten materials, in which they undergo their transformations. 
The maggots of a parasitic fly, called Bracon variegator, live 
upon the larvce of the Tinea. 
It is essential to ventilate pea and bean stores, to keep them dry 
and secure from these insects. 
Empty sacks should be well exposed to the su7i or kiln-dried, as 
opportunities offer. 
Sacks should be entirely made of Iiemp or vegetable fibre, and 
never mended with worsted or patched wilh tcoollen. 
Fumigating with sulphur or evaporating spirits of turpentine will 
destroy these insects. 
Dusting the seeds \\'i\X\ pepper , or enclosing camphor with them, 
will banish the insects. 
The Mole-crickets a dreadful scourge in corn-fields, meadows, 
and gardens. 
They are at present most destructive in Germany and the South 
of France, but are gradually extending their northern bounds. 
In many parts of England they abound. 
In Germany one-sixth and even one- fourth oi young corn-crops 
fall a sacrifice to the 3Iole-cricket ; they also attack peas and beans. 
Most destructive in the botanic garden at Berlin, and de- 
stroying the sugar-cane in the West Indies. 
It hnrroics under ground, living like a mole in miniature^ and 
only comes forth in the evening and at night. 
Mole-crickets have been supposed to emit the dancing light 
called the " Will-o'-the-wisp." They sing or chirp in the evening. 
The female constructs an oval cell in the earth in summer, to 
deposit her eggs in, amounting to 300 or 400. 
The young hatch in about a month, look like black ants, live in 
society, feeding upon the roots at hand, until they cast off their 
first skin, when they disperse. 
When young they have no wings, but attain riidimeids of them 
as they increase in size, and after the .5th moult they are furnished 
with ample wings. 
They pass the winter in the earth, and come forth in the spring, 
when they may be traced by their little hillocks. 
Where they live the grass and vegetables become yellow, and 
ivither. 
They are omnivorous, feeding upon animal as well as vegetable 
substances, yet they can live 9 or 10 months without food. 
They fight, and deTour each other, and the female eats 9-lOths 
of her offspring. 
They may be enticed into traps by certain odours. 
Horse-dung is said to attract, and pigs' -dung to drive them away. 
