. Animal behaviour. Animal behavior; Animal intelligence. INSTINCTIVE BEHAVIOUR IN INSECTS 75 where the sting can enter. The action does not imply any physiological knowledge. In general she begins at the neck. Spiders are usually, but not always, stung on the ventral surface. ^ To give but one more example, Dr. Peckham ob- served in three cases the procedure of Ammophila urnaria which preys on caterpillars, and often, after stinging, bites the neck in several places, this process being termed malaxation. In three observed captures, all the caterpillars being of the same species and alike in s
. Animal behaviour. Animal behavior; Animal intelligence. INSTINCTIVE BEHAVIOUR IN INSECTS 75 where the sting can enter. The action does not imply any physiological knowledge. In general she begins at the neck. Spiders are usually, but not always, stung on the ventral surface. ^ To give but one more example, Dr. Peckham ob- served in three cases the procedure of Ammophila urnaria which preys on caterpillars, and often, after stinging, bites the neck in several places, this process being termed malaxation. In three observed captures, all the caterpillars being of the same species and alike in size, the thrusts were given on the ventral surface near the middle line, between the segments. In the first, seven stings were given at the extremities (there being thirteen segments), the middle segments being left untouched, and no malaxation was practised. In the Pig. 11.—Solitary Wasp stinging Caterpillar (after Peokham). seven stings were again given, but in the anterior and middle segments, followed by slight malaxation. In both these cases the first three thrusts were in definite order, behind the third,' the second, and the first segments successively. In the case of the third caterpillar, only one thrust was given, between the third and fourth segments—that is to say, in the position of the first stab in the other cases,—and after this one thrust there was prolonged malaxation. Of fifteen stored caterpillars examined, some lived only three days, others a little longer, while a few showed signs of life at the end of a fortnight. In more than one instance the second of the two caterpillars. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Morgan, C. Lloyd (Conwy Lloyd), 1852-1936. London, E. Arnold
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