Haploembia solieri or bicolored webspinner is a species of webspinner in the family Oligotomidae.[1][2][3][4] It is found in Europe, Northern Asia (excluding China), and North America.[2] Unlike Haploembia tarsalis, which reproduces asexually, H. solieri reproduces sexually. Adult specimens of H. solieri are orange and black and around 11 mm long.[5]