Bruchus atomarius
This record describes Bruchus atomarius (species). Recorded family: Chrysomelidae. Recorded order: Coleoptera.
Identification and Appearance

2.5-3.6mm. Dense pale patch at rear of pronotum and centrally on suture of elytra. Several other smaller pale patches. Leg colour is same as the basic colour except front femur and tibia which are orange.Males possess a sub-apical tooth on the mid tibia, located away from the apical angle. Very similar to Bruchus rufimanus . The key distinguishing features are the size difference ( rufimanus is generally larger - to 5.3mm) and lacks the sub-apical tooth on the mid-tibia in males. The colouration of antennae and legs, and general colouration is similar between species, and whilst there may be difference in the ventral pubescence this may not be consistent/reliable. Unless identified by a recognised expert, a photo is required and the specimen should be examined with a microscope. In the comments box, state the key or ID method used and describe the size and identifying characters. A voucher specimen may be required. Nationally Scarce (Notable B) in Britain. No additional images available for this species.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Coleoptera
- Family
- Chrysomelidae
- Genus
- Bruchus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Habitat
Usually found by sweeping vegetation.
Seasonal Activity
Peak time seems to be May to August.
Additional species information
Recorded status
Nationally Scarce (Notable B) in Britain.
About Primitive Winged Insects: the wider group
Order-level background for Coleoptera, the group containing Bruchus atomarius. 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 Bruchus atomarius (2)
Frequently Asked Questions About Bruchus atomarius
What is Bruchus atomarius?
Bruchus atomarius is a species in the family Chrysomelidae, within the order Coleoptera.
How big is Bruchus atomarius?
difference (
Where is Bruchus atomarius found?
Habitat: Usually found by sweeping vegetation.
When is Bruchus atomarius active?
Bruchus atomarius: seasonal activity - Peak time seems to be May to August..
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