Larinus filiformis is a species of true weevil found in Armenia, Azerbaijan, Turkey, and Bulgaria.

[1] The weevil's main host plant in its native range is yellow starthistle Centaurea solstitialis.

For this reason, there is interest in determining whether L. filiformis would be a good candidate for classical biological control of the noxious weed.

Females lay eggs on the flowerheads, and larvae undergo development inside the flower heads.

[1] It is most common at an elevation of 1,000 to 1,400 metres (3,300 to 4,600 ft) in Turkey.