The Phalacridae are a family of beetles commonly called the shining flower beetles, They are often found in composite flowers. They are oval-shaped, usually tan, and about 2 mm in length. Most species feed on fungus, although a number feed on flower heads.

Worldwide there are about 638 species in 52 genera. The oldest possible record of the family is a specimen from Spanish amber, dating to the Albian stage of the Early Cretaceous.

Taxonomy: This family includes the following subfamily:

• Phaenocephalinae Matthews, 1899
• Phalacrinae Leach, 1815

Genera within this family include:

• Phaenocephalus-group
• Phaenocephalus Wollaston, 1873
• Phalacrinus Blackburn, 1891
• Ranomafanacrinus Gimmel, 2013
• Stilbus-group
• Acylomus Sharp, 1888
• Nesiotus Guillebeau, 1896
• Stilbus Seidlitz, 1872
• Xanthocomus Guillebeau, 1893
• Pseudolibrus-group
• Litostilbus Guillebeau, 1894
• Megistopalpus Guillebeau, 1895
• Pseudolibrus Flach, 1889
• Phalacrus-group
• Phalacropsis Casey, 1890
• Phalacrus Paykull, 1800
• Olibroporus-group
• Austroporus Gimmel, 2013
• Olibroporus Casey, 1890
• Platyphalacrus Gimmel, 2013
• Pycinus Guillebeau, 1893
• Ochrolitus-group
• Ochrolitus Sharp, 1889
• Sveculus Gimmel, 2013
• Olibrus-group
• Olibrus Erichson, 1845
• Tolyphus Erichson, 1845
• Olibrosoma-group
• Antennogasmus Gimmel, 2013
• Malagasmus Gimmel, 2013
• Olibrosoma Tournier, 1889
• Litochropus-group
• Litochropus Casey, 1890
• Neolitochrus Gimmel, 2013
• Genera incertae sedis
• Apallodes Reitter, 1873
• Augasmus Motschulsky, 1858
• Entomocnemus Guillebeau, 1894
• Eulitrus Sharp, 1889
• Grouvelleus Guillebeau, 1892
• Litochrus Erichson, 1845
• Malagophytus Gimmel, 2013
• Paracylomus Gimmel, 2013