1 14 Observations on various Insects affecting the Corn- Crops. 
EXPLANATION OF PLATE P. 
Fig. 1. A grain of wheat opened, to show the cavity in which the 
caterpillar of Tinea granella had fed, with the excre- 
ment at the apex. 
Fig. 2. several grains united by the same caterpillar. 
Fig. 3. The caterpillar of Tinea granella. 
Fig. 4.* The same magnified. 
Fig. 5. A group of the cocoons spun by the same. 
Fig. 6. The chrysalis taken out of a cocoon. 
Fig. 7.* The same magnified. 
Fig. 8. A cAr^^afc sticking in a cocoon after the moth was hatched. 
Fig. 9. Tinea granella at rest. 
Fig. 10.* The same flying, and magnified. 
q. The natural dimensions. 
Fig. 11. Calandra Oryzce, the Rice-weevil. 
Fig. 12.* The same magnified. 
a* One of the mandibles or jaws. 
b* The maxilla. 
c* The palpus or feeler. i 
d* The antenna or horn. 
Fig. 13. A grain of wheat opened, to show the burrows of two beetles. 
Fig. 14.* The same magnified. 
e. The maggot of Calandra Oryzce. 
p. The burrow of Cucujus testaceus. 
Fig. 15. A grain of wheat. 
f. The hole eaten by the larva of Calandra Oryzce. 
Fig. 16.* The same grain magnified. 
/. The hole perforated by the little maggot. 
Fig. n.* The grain of wheat opened to show the perfect weevil inside. 
Fig, 18.* Thej9?</^aof Calandra Oryzce. 
g. The natural size. 
Fig. 19.* The parasitic fly, Meruporus graminicola. 
h. The natural size. 
Fig. 20. Calandra granaria, the Granary-weevil. 
Fig. 21.* The same magnified. 
Fig. 22.* Larva of Silvanus Surinamensis. 
i. The natural length. 
Fig. 23.* Pupa of the same. 
j. The natural length. 
Fig. 24.* Silvanus Surinamensis. 
k. The natural length. 
Fig. 25.* Larva of Cucujus testaceus. 
I. The natural dimensions. 
Fig. 26.* Cucujus testaceus. 
in. The natural size. 
Fig. 27.* Cadelle or larva of Trogosita Mauriianica. 
n. The natural length. 
Fig. 28.* Trogosita Mauritanica. 
0. The'natural length. 
