Astenus pulchellus
This record describes Astenus pulchellus (species). Recorded family: Staphylinidae. Recorded order: Coleoptera.
Identification and Appearance
3.5 - 4.5mm. Generally black (but can be paler brown) and usually with yellow extending variably upwards from the end of the elytra either side of the suture. The head and pronotum are heavily punctured such that the spaces between them appear as reticulate ridges. Legs and antennae are yellow. The pronotum has two long hairs projecting from either side, though this can be variable. Examining the male aedegus is generally the only safe way to confirm the species. Images in a pink box are thought to be this species but can't be confirmed. * note that the male aedegus should be checked to confirm the species. The male aedegus should be checked to confirm the species Uncommon. Found in the south up to the midlands. No additional images available for this species.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Coleoptera
- Family
- Staphylinidae
- Genus
- Astenus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Habitat
Often found in compost heaps.
Seasonal Activity
March - October
Additional species information
Recorded status
Uncommon. Found in the south up to the midlands.
About Primitive Winged Insects: the wider group
Order-level background for Coleoptera, the group containing Astenus pulchellus. Species-specific details appear above.
Group overview
Coleoptera is the largest order of insects with over 400,000 described species, representing ~25% of all known animal species and ~40% of all insects. In the U.S. alone, nearly 30,000 beetle species have been identified.
Ecological role of the group
Beetles are prominent decomposers, especially in forests, breaking down dead wood and recycling nutrients. As predators, they reduce populations of pest insects. Many species are also important pollinators of flowering plants.
Economic and practical significance of the group
Beetles have major economic significance: leaf beetles (Chrysomelidae) and weevils (Curculionoidea) are among the most destructive agricultural pests globally, costing billions annually, while predatory species like ladybugs provide natural pest control.
Recorded sources for this group: Britannica, Smithsonian, NCSU Entomology. Imported estimates may describe particular regions or reporting periods.
Photos of Astenus pulchellus (3)
Frequently Asked Questions About Astenus pulchellus
What is Astenus pulchellus?
Astenus pulchellus is a species in the family Staphylinidae, within the order Coleoptera.
Where is Astenus pulchellus found?
Habitat: Often found in compost heaps.
When is Astenus pulchellus active?
Astenus pulchellus: seasonal activity - March - October.