The Toad may be rough and warty in appearancebut worth its weight in gold as a destroyer of insectpests. Note the expression of satisfaction after a successfulnight of foraging for cutworms and June-beetles.

AN ELEMENTARY
STUDY OF
INSECTS

By

LEONARD HASEMAN

Professor of Entomology in the University of Missouri

Columbia, Missouri
MISSOURI BOOK COMPANY
1923

[v]

CONTENTS.

• Introduction

• Chapter I Insects:
  • (1) What they are.
  • (2) Their principal characteristics.
  • (3) Their methods of developing.
  • (4) The principal orders.
  • (5) Their habits.
  • (6) Their role in agriculture.

• Chapter II Collecting Insects:
  • (1) Directions for collecting.
  • (2) Pinning and preserving a collection.
  • (3) Rearing and observing them while alive.

• Chapter III The Grasshopper:
  • (1) Brief discussion of the grasshopper.
  • (2) Field studies.
  • (3) Breeding cage observations.
  • (4) Study of specimen.

• Chapter IV The House Fly or Typhoid Fly:
  • (1) Discussion of the life cycle of the fly, its habits, danger from it and how it can be stamped out.
  • (2) Study of the fly and its work.

• Chapter V The Mosquito:
  • (1) Brief discussion of the life habits and stages of the mosquito.
  • (2) Observations and study.

• [vi]Chapter VI The Cabbage Miller:
  • (1) Brief discussion of the caterpillar, the chrysalis, the butterfly, and its work.
  • (2) ...