Thực đơn
Helophilus_contractus Chú thíchThực đơn
Helophilus_contractus Chú thíchLiên quan
Helophilus Helophorus Helophilus bilinearis Helophilus trivittatus Helophilus lapponicus Helophilus pendulus Helophilus hybridus Helophilus groenlandicus Helophilus contractus Helophilus latifronsTài liệu tham khảo
WikiPedia: Helophilus_contractus http://www.zmuc.dk/entoWeb/collections-databaser/D... http://syrphidae.lifedesks.org/node/1476 https://web.archive.org/web/20150124001337/http://... https://web.archive.org/web/20160303180845/http://...