Corylophidae

LeConte, 1852

minute hooded beetles, minute fungus beetles

Genus Guides

Aenigmaticum
Holopsis
Microstagetus
Orthoperus(minute hooded beetles)
Parmulini(minute hooded beetles)
Rypobiini
Sericoderus

is a of minute beetles in the superfamily Coccinelloidea, comprising approximately 18 and at least 120 described . Members are among the smallest free-living insects, with body lengths typically around 2 mm. The family exhibits distinctive anatomical modifications associated with extreme miniaturization, including elevated rates of substitution in nuclear rRNA genes in the most diminutive species. Formerly known as Orthoperidae in older literature.

Sericoderus by (c) Alexis Tinker-Tsavalas, some rights reserved (CC BY), uploaded by Alexis Tinker-Tsavalas. Used under a CC-BY license.

Clypastraea lugubris by no rights reserved, uploaded by Nick Bédard. Used under a CC0 license.

Arthrolips fasciata by (c) Mario Bassini, some rights reserved (CC BY), uploaded by Mario Bassini. Used under a CC-BY license.

Pronunciation

How to pronounce Corylophidae: /kɔrɪˈlɒfɪdiː/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

Distinguished from other minute beetles by the hooded appearance created by the pronotum concealing the . The combination of extremely small size (approximately 2 mm) and the shelf-like pronotal projection is diagnostic. Molecular places the in Coccinelloidea, with Anamorphinae (Endomychidae) or Coccinellidae as sister groups depending on analysis type.

Images

Habitat

Found in diverse microhabitats including bark crevices, leaf litter, decaying vegetation, rotting wood, and surfaces of leaves and flowers. Some occur in bird nests. Clypastraea is most often found in fungi and mold in rotting wood and under bark on dead trees.

Distribution

distribution. Approximately 61 in ten occur north of Mexico. Documented from Australia, South Korea, Myanmar (fossil), Denmark, Norway, Sweden, Vermont (USA), and other regions. The comprises approximately 300 species globally across 28 genera.

Diet

Larvae and feed on fungal spores and microfungi such as molds.

Life Cycle

Complete with larval and stages both feeding on fungal spores.

Ecological Role

Consumers of microfungi and molds in decaying organic matter, contributing to nutrient cycling in forest floor and woody debris .

Human Relevance

Occasionally encountered by entomologists and naturalists; one specimen was found on a utility box in a residential neighborhood, indicating potential for incidental human contact. No known economic importance or pest status.

Similar Taxa

EndomychidaeSister group relationship in molecular analyses; both are small cucujiform beetles with fungal associations
CoccinellidaeRecovered as sister group in combined morphological and molecular analyses; both in superfamily Coccinelloidea

More Details

Taxonomic history

Formerly known as Orthoperidae in older literature. The was established by LeConte in 1852.

Phylogenetic relationships

Molecular data strongly support Anamorphinae (Endomychidae) as sister group; combined data analyses recover Coccinellidae as sister group. and Corylophinae are monophyletic in all analyses.

Miniaturization

Key phenotypic modifications and elevated rates of substitution in nuclear rRNA genes are evident in a subgroup of Corylophinae that includes the most diminutive .