affecting the Coi'n- Crops. 
505 
Do not pull up the infested corn-plants in the spriny, if they 
attempt to throw out lateral shoots. 
Ploughing and harrowing of no use, as neither the eggs, pupae, 
nor larvae inhabit the earth. 
EXPLANATION OF PLATE K. 
Fig. 1 . A young wheat-plant. 
Fig. 2. The larva of some beetle. 
Fig. 3.* The same magnified. 
Fig. 4. The same eating the wheat-stem. 
a The portion consumed by the larva. 
h The surface of the earth. 
e The old husk, showing the hole into which the larva re- 
treated. 
Fig. 5. Larva of some Carahideous beetle ? 
Fig. 6.* The same magnified. 
Fig. 7.* Zabrus gibbus. 
Fig. 8. Larva of ditto. 
Fig. 9.* The same magnified. 
Fig. 10. A portion of earth dug up, showing the economy of the larva. 
d, d The entrances to the burrows. 
e The curved portion. 
f One of the cavities or cells for the pupa. 
Fig. 11. A pupa resting in the cell. 
Fig. 12.* Anisoplia Agricola. 
Fig. 13.* Anisoplia Horticola. . 
Fig. 14. Larva of ditto. 
Fig. 15. An ear of wheat eaten by the caterpillar of Noctua (Cara- 
drina) Cubicularis. 
g The perforated grains eaten out. 
h One removed. 
Fig. 16. The caterpillar when half grown. 
Fig. 17. Another full-grown. 
Fig. 18. The moth {N. Cubicularis), supposed to be the parent of 
this caterpillar. 
Fig. 19. Larva of a Tenthredo? 
i,j* The two jaws, or mandibles. 
k* The maxilla and palpus. 
Fig. 24. The upper portion of the stem of wheat affected by Chlorops 
txniopus. 
p A hole in the husk of the basal grain. 
PLATE L. 
Fig. 20. Chlorops tmiiopus. 
Fig. 21.* The same magnified. 
n The termination of the costal nervure. 
/* One of the antennae, or horns. 
