THE INSECTS OF THE UNITED STATES.
Insects are the most abundant of the animal kingdom. They are classified principally by the nature of their wings. Dr. Sharp, an authority on Entomology, recognizes but nine orders:
| 1. Aptera. |
| 2. Orthoptera. |
| 3. Neuroptera. |
| 4. Hymenoptera. |
| 5. Coleoptera. |
| 6. Lepidoptera. |
| 7. Diptera. |
| 8. Thysanoptera. |
| 9. Hemiptera. |
Many useful products are obtained from insects. From them we get our silk, honey and cochineal, and they help to fertilize our flowers. On the other hand, many are detrimental to agriculture and health.