Third instar larvae expressing EP1640EP1640 under the control of Scer\GAL4Pxn.PS have an increased number of sessile hemocytes. The number of hemocytes in circulation is also increased. The dorsal sessile hemocyte department is slightly disrupted. Sessile hemocytes do not accumulate along the dorsal vessel but spread through the cuticle. The lymph gland is enlarged. Hemocyte shape is normal.