Bostra obsoletalis is a species of moth in the family Pyralidae described by Josef Johann Mann in 1864. It is found in southern Europe, Yemen, Sudan, the Palestinian territories, Tunisia and Morocco.
The wingspan is 14–15 mm. Adults are on wing from June to August.
Small lepidopteran of the family Pyralidae and the subfamily Pyralinae. Common in the Cuenca region.
It has a wingspan of about 15 mm. On the underside of the forewings, which are usually straw-colored or ochre-colored, the checkered costae are often seen on the basal two-thirds. Multiple dark scales appear scattered across the entire surface of the forewings. There is a small black spot on the disc of each forewing. Two dark transverse lines are usually seen dividing each forewing into three parts. The underside of the hindwings is white with well-developed fimbriae.