Pachybrachis fortis
This record describes Pachybrachis fortis (species). Recorded family: Chrysomelidae. Recorded order: Coleoptera.
Identification and Appearance
from Fall's description: Large, robust, yellow, with standard markings, in pale brown, rather lightly indicated on the elytra; luster dull, surface with very fine, short and sparse pubescence; no ocular lines; front claws of male rather large. last key couplet: Eyes in male separated by scarcely or but little more than the length of the basal antennal joint; prothorax pale yellow with faint brown markings
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
AZ, w. TX ( 3 ) (BG data)
Diet and Behavior
Life History
coll'ed from Mimosa sp. (Fabaceae) ( 4 )
Additional species information
Species notes from the sources
Etymology: Pachybrachis fortis Fall 1915
About Primitive Winged Insects: the wider group
Order-level background for Coleoptera, the group containing Pachybrachis fortis. 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 fortis (5)
Photo credits: Contributed by Mike Quinn
Frequently Asked Questions About Pachybrachis fortis
What is Pachybrachis fortis?
Pachybrachis fortis is a species in the family Chrysomelidae, within the order Coleoptera.
How big is Pachybrachis fortis?
4.5 to 5 mm (large)
How do you identify Pachybrachis fortis?
from Fall's description: Large, robust, yellow, with standard markings, in pale brown, rather lightly indicated on the elytra; luster dull, surface with very fine, short and sparse pubescence; no ocular lines; front claws of male rather large. last key couplet: Eyes in male separated by scarcely or but little more than the length of the basal antennal joint; prothorax pale yellow with faint brown markings
Where is Pachybrachis fortis found?
Range: AZ, w. TX ( 3 ) (BG data)
What is the life cycle of a Pachybrachis fortis?
coll'ed from Mimosa sp. (Fabaceae) ( 4 )