Thực đơn
Helophilus trivittatus Chú thíchThực đơn
Helophilus trivittatus Chú thíchLiên quan
Helophilus Helophilus trivittatus Helophilus versicolor Helophilus pendulus Helophilus transfugus Helophilus fasciatus Helophilus lineatus Helophilus lapponicus Helophilus parallelus Helophilus bilinearisTài liệu tham khảo
WikiPedia: Helophilus trivittatus 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://...