Pachybrachis chester
This record describes Pachybrachis chester (species). Recorded family: Chrysomelidae. Recorded order: Coleoptera.
Identification and Appearance
Known only from one locality in Georgia and one locality in South Carolina. (holotype + 6 paratypes). GEORGIA: Dodge Co., Chester, 1.vi.1904, Georgia State Collection [1♂, holotype, USNM]; same data, except 26.v.1904, Georgia State Collection [1♂, USNM; 1♀, viduatus, MCZ-FALL] {3}. SOUTH CAROLINA: Williamsburg Co., Kingstree, 25.v.1937, J. G. Watts [2♂♂ 2♀♀, CUAC] {4}.
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
GA-SC (see Remarks for details)
Diet and Behavior
Life History
unknown
Additional species information
Species notes from the sources
Etymology: Pachybrachis chester Riley & Barney
About Primitive Winged Insects: the wider group
Order-level background for Coleoptera, the group containing Pachybrachis chester. 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 chester (5)
Photo credits: (c) Mike Quinn, San Marcos, some rights reserved (CC BY-NC), uploaded by Mike Quinn, San Marcos | Contributed by Mike Quinn
Frequently Asked Questions About Pachybrachis chester
What is Pachybrachis chester?
Pachybrachis chester is a species in the family Chrysomelidae, within the order Coleoptera.
How big is Pachybrachis chester?
| Feature | Details |
|---|---|
| Male | length 2.6–2.9 mm (mean = 2.7 mm, n = 4) |
| Female | length 2.9–3.3 mm (mean = 3.1 mm, n = 3) |
Where is Pachybrachis chester found?
Range: GA-SC (see Remarks for details)
What is the life cycle of a Pachybrachis chester?
unknown