Brook Floater vs Common Field Grasshopper

Alasmidonta varicosa compared with Chorthippus brunneus

Key Differences

• Brook Floater is Vulnerable while Common Field Grasshopper is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Common Field Grasshopper
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Orthoptera (Orthoptera)
Family	Unionidae	Acrididae
Genus	Alasmidonta	Chorthippus
Species	Alasmidonta varicosa	Chorthippus brunneus

Evolutionary Relationship

Brook Floater and Common Field Grasshopper share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Common Field Grasshopper

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Common Field Grasshopper
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brook Floater

Habitat

Native to North America, inhabiting ecosystems characteristic of the region.

Range

Found in United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Field Grasshopper

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Luxembourg, Norway, and Sweden.

Brook Floater

The Brook Floater (Alasmidonta varicosa) is a species in the genus Alasmidonta. It is currently classified as Vulnerable on the IUCN Red List. Native to North America, inhabiting ecosystems characteristic of the region.

Common Field Grasshopper

The Common Field Grasshopper (<em>Chorthippus brunneus</em>) is an orthopteran insect belonging to the genus Chorthippus within the family Acrididae. It is one of the most frequently encountered grasshoppers in northern and western Europe, typically inhabiting dry, open areas such as grasslands, heathlands, roadsides, and disturbed ground. The species is often found in virtually all terrestrial and freshwater habitats across its range. Geographically, <em>Chorthippus brunneus</em> is distributed across Belgium, Denmark, Luxembourg, Norway, and Sweden, among other European countries. The species is assessed as Least Concern on the IUCN Red List. Adults are typically brown to grey in colouration with variable patterning, and males often produce a distinctive short, chirping song used in courtship. As a herbivore, this grasshopper typically feeds on grasses and other low-growing vegetation. Biological traits including average lifespan and body dimensions remain poorly documented in the scientific literature, though adults in temperate regions typically appear from mid-summer through autumn.