Date________ Time________ Locality________ Pupil's Name________ ---------------------------------------------------------------- Name of Insect | Where Found | What it was Doing | Probable Food ---------------+-------------+-------------------+-------------- | | | | | | In case the name of the insect is not known to you, use a number and some designation as to color or other mark by which it may be known until you have leisure to look up its name by means of keys or books on insects. Special Field Studies The questions below may be used for a more careful field study of any insect. 1. Just where was the insect found? 2. Note carefully what the insects are doing before they are disturbed by your presence. What did the insects do when you disturbed them? If you think this related to securing safety, explain what leads you to think so. 3. What senses do you conclude are well developed? Reason for your conclusion. 4. Has the insect a home? If so, what is its character? 5. What is the color? What is the relation between the color of the insect and its surroundings? 6. Is the insect solitary in its habits or associated with others of the same species? If in association with others, note the numbers, and what they are doing. 7. What modes of locomotion do you observe in this insect? Which is the most common? If it flies or jumps, note the distance. 8. If you find the young, note whether they differ from the adult in general appearance, and if so, in what ways they differ. Do they differ in food? 9. What other insects do you find in the same habitat? 2. A STUDY OF GRASSHOPPERS (LOCUSTS) _Insects adapted to Life in Grassy Meadows and Fields_ _Materials._ Both living and dead specimens of grasshoppers. Various stages of young grasshoppers either dead or living. Some mounted specimens with wings spread. The wings of grasshoppers mounted in pairs between two glass slides for use with microscope or hand lens. Mounted preparations of mouth parts and tracheæ. _Definitions._ _Orthoptera_, straight-winged insects, order to which belong grasshoppers, locusts, katydids, crickets, cockroaches, etc. _Vivarium_, a cage in which living animals are kept. _Anterior_, toward the head of an animal. _Posterior_, opposite to anterior. _Dorsal_, the upper surface of an animal. _Ventral_, opposite to dorsal. _Regions_, principal divisions of the body of an animal. _Head_, _thorax_, and _abdomen_, the three distinct regions into which the body of a grasshopper is divided. _Somite_, a ring-like division of the body of an animal. _Prothorax_, _mesothorax_, and _metathorax_, the three divisions or somites into which the thorax of any insect is divided. A pair of legs is borne on each division. _Exoskeleton_, an external skeleton.