Cyclosia is een geslacht van vlinders van de familie bloeddrupjes (Zygaenidae), uit de onderfamilie Chalcosiinae.
Soorten C. curiosa (Swinhoe, 1900) C. chartacea Swinhoe, 1892 C. danaides Walker, 1864 C. distanti (Druce, 1891) C. dolichoptera (Hampson, 1919) C. electra (Swinhoe, 1905) C. eucharia Jordan, 1907 C. hecabe Jordan, 1907 C. imitans (Butler, 1881) C. inclusoides Hering, 1922 C. inclusus (Walker, 1864) C. inornata (Walker, 1864) C. macularia (Guérin-Meneville, 1843) C. midama (Herrich-Schäffer, 1853) C. nivipetens Walker, 1863 C. pagenstecheri (Grünberg, 1908) C. panthona (Stoll, 1781) C. papilionaris (Drury, 1773) C. perakensis Hering, 1922 C. pieridoides (Herrich-Schäffer, 1854) C. pieriodes Walker, 1862 C. podagra (Swinhoe, 1908) C. pseudospargens Hering, 1922 C. sordidus (Walker, 1862) C. spargens Walker, 1864 C. tafti West, 1932 C. tamara Hering, 1922 C. thecloides (Walker, 1862) C. unicolor Hampson, 1919