Fig. 5.

(a) SEM of male A. ludens showing the position of the various organs. Compound eye (CE), labellum (LA), midgut (MG), crop duct (CD), salivary gland duct (SGD), crop (C) and the convoluted tubules forming two balls= salivary glands (SG); (b) LM dissection of male system showing the crop duct (CD), salivary gland ducts (SGD), a series of circular muscle (CM), series of dorsal ventral muscles (VM) and the two convoluted tubules forming two balls=salivary glands (SG); (c) LM dissection of female and male salivary glands (SG); (d) SEM of empty crop showing the two crop lobes (CL) and the crop duct (CD).