This field book details Karl V. Krombein's work with insects, particularly wasps, in Sri Lanka from 1978-1981. Dated entries include detailed descriptions of behavior with accompanying time measurements, and may include field numbers, size measurements, sex, and prey details. Information on nests, eggs, and larvae is also included. There are 2 additional entries from February 10th and 12th, presumably from a different person. See box 16, folder 16 for audio dictation.
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