Pachybrachis spumarius
This record describes Pachybrachis spumarius (species). Recorded family: Chrysomelidae. Recorded order: Coleoptera.
Identification and Appearance
| Feature | Description |
|---|---|
| Additional details | Redescription : Yellow, with brown, reddish brown, or rust-colored punctures, with standard maculae diffuse, often dark brown or fuscous. |
| Head | Head: Slightly wider than thoracic apex; eyes moderately separated; face yellow with brown, W-shaped macula. |
| Pronotum | Pronotum: Yellow, with M-shaped marking broadly diffuse, leaving small, scattered, slightly convex, yellow spots; scattered punctation extending to lateral margins. |
| Elytra | Elytra: Punctation dense, confused; lateral striae mostly distinct; 1 or 2 discal costae defined by punctures; marginal interspace mostly impunctate. (see Barney for more details ) - variable Det. E. G. Riley, 2010 (first image only) Lectotype: Barney designated a male specimen of P. spumarius , recently discovered among some previously unrecognized type material of Suffrian from Carolina, as the lectotype. |
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Coleoptera (Beetles)
- Suborder
- Polyphaga
- Superfamily
- Chrysomeloidea
- Family
- Chrysomelidae (Leaf Beetles)
- Subfamily
- Cryptocephalinae
- Tribe
- Cryptocephalini
- Genus
- Pachybrachis (Scriptured Leaf Beetles)
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
e NA to s. TX (s.TX-c.FL-s.QC-se.SD) - Map the most commonly coll'ed sp. in Alabama ; and the second most commonly collected species in eastern Canada and can often be found in large series on Rhus spp. (emphasis added)
Seasonal Activity
Apr-Oct ( 8 )
Diet and Behavior
Diet: Barney reports having collected multiple large series on winged sumac ( Rhus copallinum , Anacardiaceae) in Illinois, Kentucky, North Carolina, and West Virginia . (emphasis added)
Additional species information
Species notes from the sources
Etymology: Pachybrachis spumarius Suffrian 1852
About Primitive Winged Insects: the wider group
Order-level background for Coleoptera, the group containing Pachybrachis spumarius. 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 Pachybrachis spumarius (5)
Photo credits: Contributed by Mike Quinn
Frequently Asked Questions About Pachybrachis spumarius
What is Pachybrachis spumarius?
Pachybrachis spumarius is a species in the family Chrysomelidae, within the order Coleoptera.
How big is Pachybrachis spumarius?
| Feature | Details |
|---|---|
| Length | Male: 1.75–2.45 mm (mean = 2.02 mm, n = 31) |
| Female | 2.01–2.63 mm(mean = 2.33mm, n = 30) |
How do you identify Pachybrachis spumarius?
| Feature | Description |
|---|---|
| Additional details | Redescription : Yellow, with brown, reddish brown, or rust-colored punctures, with standard maculae diffuse, often dark brown or fuscous. |
| Head | Head: Slightly wider than thoracic apex; eyes moderately separated; face yellow with brown, W-shaped macula. |
| Pronotum | Pronotum: Yellow, with M-shaped marking broadly diffuse, leaving small, scattered, slightly convex, yellow spots; scattered punctation extending to lateral margins. |
| Elytra | Elytra: Punctation dense, confused; lateral striae mostly distinct; 1 or 2 discal costae defined by punctures; marginal interspace mostly impunctate. (see Barney for more details ) - variable Det. E. G. Riley, 2010 (first image only) |
Where is Pachybrachis spumarius found?
Range: e NA to s. TX (s.TX-c.FL-s.QC-se.SD) - Map the most commonly coll'ed sp. in Alabama ; and the second most commonly collected species in eastern Canada and can often be found in large series on Rhus spp. (emphasis added)
What does Pachybrachis spumarius eat?
The diet of the Pachybrachis spumarius includes Barney reports having collected multiple large series on winged sumac ( Rhus copallinum , Anacardiaceae) in Illinois, Kentucky, North Carolina, and West Virginia . (emphasis added).
When is Pachybrachis spumarius active?
Pachybrachis spumarius: seasonal activity - Apr-Oct ( 8 ).