Poecilasthena is een geslacht van vlinders van de familie spanners (Geometridae), uit de onderfamilie Larentiinae.
Soorten P. aedaea Turner, 1926 P. anthodes Meyrick, 1891 P. balioloma Turner, 1907 P. burmensis Prout, 1926 P. cisseres Turner, 1933 P. character Prout, 1932 P. dimorpha Holloway, 1979 P. euphylla Meyrick, 1891 P. fragilis Turner, 1942 P. glaucosa Lucas, 1888 P. inhaesa Prout, 1934 P. leucydra Prout, 1934 P. limnaea Prout, 1926 P. nubivaga Prout, 1932 P. panapala Turner, 1923 P. paucilinea Warren, 1906 P. phaeodryas Turner, 1931 P. pisicolor Turner, 1942 P. prouti West, 1929 P. pulchraria Doubleday, 1843 P. scoliota Meyrick, 1891 P. schistaria Walker, 1861 P. sthenommata Turner, 1922 P. subpurpureata Walker, 1863 P. thalassias Meyrick, 1891 P. urarcha Meyrick, 1891 P. xylocyma Meyrick, 1891