These results are in accordance with the findings of
Horohov and Dunn (1983) who reported that the bacterial
injection into Manduca sexta larvae caused a significant
decrease in the percentage of Grs and Pls. Also, Chain
and Anderson (1982) reported a direct demonstration that
B. cereus injection can cause a selective removal of
plasmatocytes from the circulating haemolymph of
Galleria mellonella. Perhaps the injection with bacteria in
some way causes Pls to clump together or to cling to the
lining of the haemocel