Fig. 1. (A) White Misumena vatia with red stripes (bar, 2 mm). (B) Electron micrograph of the peripheral guanocytes (G) with guanine crystals. Bar, 5 µm. (C) Light micrograph of stained section across the dorsal tegument of the opisthosoma (boxed in A) showing the cuticle (C) with the folded external surface, the epidermis (E) with granules (arrow), the guanocytes (G) and the intestinal diverticula (ID). Bar, 20 µm. (D) Schematic drawing of sections across the dorsal tegument of the opisthosoma, based upon the light microscopic observations. E, epidermis; En, endocuticle; Ep, epicuticle; Ex, exocuticle; H, hemocyte; HS, hypodermic hemolymph sinus, M, muscle; N, nucleus; IT, interstitial tissue, G, guanocyte; ID, intestinal diverticula.