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Helophilus contractus Chú thíchThực đơn
Helophilus contractus 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 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://...