Placonotus is a genus of beetles in the family Laemophloeidae. There are 40 currently recognized species, known from all continents except Antarctica. Placonotus species are small (~2mm), elongate, flattened beetles, characterized by long filiform antennae, presence of a frontoclypeal suture, open anterior coxal cavities, and broadly rounded intercoxal process of abdominal ventrite III. Males have the 8th abdominal segment modified to form claspers used during mating. Adults and larvae are found under dead bark, where they feed on fungi. Currently recognized species are:
Placonotus modestus is a species of lined flat bark beetle in the family Laemophloeidae. It is found in the Caribbean Sea, Central America, and North America.
Cathartosilvanus imbellis is a species of silvanid flat bark beetle in the family Silvanidae. It is found in North America.
Placonotus nitens is a species of lined flat bark beetle in the family Laemophloeidae. It is found in North America.
Pediacus stephani is a species of flat bark beetle in the family Cucujidae. It is found in North America.
Uleiota debilis is a species of silvanid flat bark beetle in the family Silvanidae. It is found in North America.
Dysmerus basalis is a species of lined flat bark beetle in the family Laemophloeidae. It is found in North America.
Charaphloeus convexulus is a species of lined flat bark beetle in the family Laemophloeidae. It is found in North America.
Cryptamorpha desjardinsii, known generally as the Desjardin's beetle or Desjardin's flat beetle, is a species of silvanid flat bark beetle in the family Silvanidae. It is found in the Caribbean, North America, Oceania, Europe, and New Zealand.
Nausibius major is a species of silvanid flat bark beetle in the family Silvanidae. It is found in Central America and North America.
Placonotus zimmermanni is a species of lined flat bark beetle in the family Laemophloeidae. It is found in North America.
Telephanus lecontei is a species of silvanid flat bark beetle in the family Silvanidae. It is found in North America.
Charaphloeus flavosignatus is a species of lined flat bark beetle in the family Laemophloeidae. It is found in North America.
Charaphloeus adustus is a species of lined flat bark beetle in the family Laemophloeidae. It is found in North America.
Monanus concinnulus is a species of silvanid flat bark beetle in the family Silvanidae. It is found in the Caribbean, Central America, North America, and Southern Asia.
Laemophloeus terminalis is a species of lined flat bark beetle in the family Laemophloeidae. It is found in North America.
Silvanus bidentatus, known generally as the flat bark beetle or two-toothed grain beetle, is a species of silvanid flat bark beetle in the family Silvanidae. It is found in North America, Oceania, and Europe.
Lathropus robustulus is a species of lined flat bark beetle in the family Laemophloeidae. It is found in North America.
Laemophloeus shastanus is a species of lined flat bark beetle in the family Laemophloeidae. It is found in North America.
Laemophloeus fervidus is a species of lined flat bark beetle in the family Laemophloeidae. It is found in North America.
