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Fig. 4. (A) The effect of haemolymph collected from a fifth instar larva with a
very full crop, on an ongoing FG rhythm in vitro, as seen in a
frontal connective extracellular recording. (B) As in A; haemolymph collected
from a non-feeding premolt fifth instar larvae. (C) As in A and B; haemolymph
collected from a fifth instar larvae just after the initiation of feeding. In
all panels, (i) is control; (ii) haemolymph application; (iii) wash. Scale
bars, 10 s.