First record of Dermestid and Ptinid beetles as insect pests of stored silkworm products in Egypt – Description of morphological features

Attagenus fasciatus (Thunberg, 1795) and Anthrenus coloratus Reitter 1881 (both Coleoptera: Dermestidae), and the spider beetle Gibbium psylloides (Czempinski, 1778) (Coleoptera: Ptinidae), were recorded for the first time in stored silkworm products such as cocoons and feaces in Egypt. Notes on the detailed morphological descriptions for all species are presented. The impact on national sericulture industry should be considered. Attagenus fasciatus and A. coloratus are serious pests of silk-worm cocoons which are damaged by their larvae boring into them to feed on pupae. Gibbium psylloides is a minor pest of the silkworm industry feeding on dry debris plant, and feaces.