Clypastraea lepida
(LeConte, 1852)
minute hooded beetle
Clypastraea lepida is a of minute hooded beetle in the Corylophidae, first described by LeConte in 1852. It is among the smallest beetles in North America, measuring approximately 2 millimeters in length. The species belongs to a family commonly known as "minute hooded beetles" or "minute fungus beetles," characterized by a distinctive morphological where the is concealed beneath a shelf-like projection of the pronotum. Members of the Clypastraea are typically associated with fungi and mold in rotting wood and under bark on dead trees.
Pronunciation
How to pronounce Clypastraea lepida: /klɪˈpas.triːə ˈlɛ.pɪ.də/
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 concealed structure typical of Corylophidae. The Clypastraea can be separated from other corylophid genera by subtle morphological characters; definitive identification to level requires examination of microscopic features. The extremely small size (~2 mm) and association with rotting wood and fungal substrates help narrow identification in the field.
Appearance
Extremely small , approximately 2 mm in length. The is concealed by a shelf-like projection of the pronotum, a defining feature of the Corylophidae. The body is compact and minute, consistent with other members of this family of "minute hooded beetles."
Habitat
Associated with fungi and mold in rotting wood and under bark on dead trees. May also occur on other substrates where fungal growth is present, such as in crevices of bark or in decaying plant material.
Distribution
North America. Records indicate presence in the United States, with specific observations from Colorado Springs, Colorado.
Diet
Feeds on fungal spores as both larvae and .
Host Associations
- Fungi - food sourceSpecifically fungal spores
- Rotting wood - Substrate for fungal growth
- Dead trees - Under bark
Ecological Role
Decomposer; contributes to nutrient cycling by feeding on fungal spores in decaying wood .
Human Relevance
No known economic or medical significance. Its minute size and cryptic habits make it unlikely to be encountered by non-. Discovery of this often comes as a surprise to entomologists due to the obscurity of the Corylophidae.
Similar Taxa
- Other CorylophidaeOther minute hooded beetles share the concealed structure; separation requires microscopic examination of genitalia and other subtle morphological characters.
- Other minute beetles (e.g., some Staphylinidae, Ptiliidae)Similar size range but lack the distinctive pronotal hood that conceals the ; Ptiliidae (feather-winged beetles) have characteristic fringed wings.
More Details
Family discovery
The Corylophidae is poorly known among general entomologists; many encounter these beetles as new discoveries despite the family's broad distribution. The "minute hooded beetles" and "minute fungus beetles" are not widely recognized outside coleopterist circles.
Taxonomic note
The Clypastraea is one of ten genera of Corylophidae recorded from north of Mexico, with 61 in the total in this region.