| Malacocis | |
|---|---|
| Scientific classification   | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Arthropoda | 
| Class: | Insecta | 
| Order: | Coleoptera | 
| Infraorder: | Cucujiformia | 
| Family: | Ciidae | 
| Tribe: | Ciini | 
| Genus: | Malacocis Gorham, 1886 | 
Malacocis is a genus of beetles in the family Ciidae, containing the following species: [1]

The minute tree-fungus beetles, family Ciidae, are a sizeable group of beetles which inhabit Polyporales bracket fungi or coarse woody debris. Most numerous in warmer regions, they are nonetheless widespread and a considerable number of species occur as far polewards as Scandinavia for example.

Cis is a genus of tree-fungus beetles in the family Ciidae. There are at least 150 described species in Cis.
Apterocis is a genus of beetles in the family Ciidae, containing the following species:
Dimerapterocis apterus is a species of beetle in the family Ciidae and the only species in the genus Dimerapterocis.

Falsocis is a genus of beetles in the family Ciidae, containing the following species:
Neoapterocis is a genus of beetles in the family Ciidae, containing the following species:
Paratrichapus sechellarum is a species of beetle in the family Ciidae, the only species in the genus Paratrichapus.
Phellinocis is a genus of beetles in the family Ciidae, containing the following species:
Plesiocis cribrum is a species of beetle in the family Ciidae, the only species in the genus Plesiocis.
Polynesicis hirsutus is a species of beetles in the family Ciidae, the only species in the genus Polynesicis.
Porculus is a genus of beetles in the family Ciidae, containing the following species:
Scolytocis samoensis is a species of beetle in the family Ciidae, the only species in the genus Scolytocis.
Sphindocis denticollis is a species of beetle in the family Ciidae, the only species in the genus Sphindocis.
Trichapus is a genus of beetles in the family Ciidae, containing the following species:
Tropicis is a genus of beetles in the family Ciidae, containing the following species:
Malacocis brevicollis is a species of minute tree-fungus beetle in the family Ciidae. It is found in North America.
Ceracis singularis is a species of minute tree-fungus beetle in the family Ciidae. It is found in Central America and North America.
Cis creberrimus is a species of minute tree-fungus beetle in the family Ciidae. It is found in the Caribbean Sea, Central America, North America, and South America.
Ceracis thoracicornis is a species of minute tree-fungus beetle in the family Ciidae. It is found in North America.
Ceracis californicus is a species of minute tree-fungus beetle in the family Ciidae. It is found in Central America and North America.