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Step 1-5: enlargement of
top of nest
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Step 3 builds first sessile comb of cells
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Step 6: beginning of
construction of external envelope
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Step 7: lengthening of
envelope, from which parallel combs will be built (Step 8, 9)
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Part of envelope cut away
in steps 7-9
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Progress is sequential in
some aspects, parallel in others
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(Unclear what parenthesized
number mean. Number of distinct
stimulating configs?)
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(SOBS 434-5, Fig. 19.23;
BDT 218-21)
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