The long-winged (macropterous) and short-winged (brachypterous) adult males of Pyrrhocoris apterus (L. ) from temperate (Czech Republic) and Mediterranean (Israel) populations were analysed for the sexual activity and the functional activity of their accessory glands. The sexual activity of the males reared either under long-day (18L : 6D) or short-day (12L : 12D) conditions was deter... https://parisnaturalfoodes.shop/product-category/org-psyllium-husk-powder/