. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 32 t' SYCOPHANTA. traveled 9,058 feet or miles. (See fig. 15.) It might be of inter- est to state that the insect was active the greater part of the time, and that the greatest speed for a 4^-hoiir period was feet per minute, and that during the first 24 hours the average rate of travel was feet per minute. xVfter the second 24 hours the rate of travel decreased gradually, and. during the last 12 hours the larva spent considerable time at rest. During the course of the experiment the larva l
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 32 t' SYCOPHANTA. traveled 9,058 feet or miles. (See fig. 15.) It might be of inter- est to state that the insect was active the greater part of the time, and that the greatest speed for a 4^-hoiir period was feet per minute, and that during the first 24 hours the average rate of travel was feet per minute. xVfter the second 24 hours the rate of travel decreased gradually, and. during the last 12 hours the larva spent considerable time at rest. During the course of the experiment the larva lost about grains, or a little more than one-third of its original weight. This experiment shows the remarkable vitality possessed by these larvie, and indicates that under any conditions they would be able to survive for several days and travel a considerable distance before succumbing from the effects of hunger. The conditions under which the test was conducted were, of course, abnormal, and it is not pre- sumed that a larva of this species would travel as great a distance as. Fk;. l.'i.—Roll of iiapcr slio\viiig rerord of distance traveled by larva of iithie<i)na si/cvphanta. (Original.) that indicated in the record. It should be said, however, that in cer- tain respects the test was unfavorable for the larva, owing to the fact that no moisture whatever was supplied and that it traveled on a dry surface and at a temperature which made rapid evaporation possible. Feeding Habits of the Larva. The larvae of this species appear to feed both by day and night, but their activity in this direction is greatly stimulated if the weather is hot. As a rule the caterpillars are attacked from the side or in the middle of the back, and if they are hairy specimens the favorite place seems to be between the segments where the larvae can more readily pierce the integument with their sliarp mandibles. Newly hatched larvae of sycopJianta are able successfully to combat equally well all
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