Bigeye thresher vs Braunstirn-Weißspanner

Alopias pelagicus compared with Cabera exanthemata

Key Differences

• Bigeye thresher is Endangered while Braunstirn-Weißspanner is Least Concern.

Taxonomic Classification

Rank	Bigeye thresher	Braunstirn-Weißspanner
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum	Chordata (Chordatiere)	Arthropoda (Gliederfüßer)
Class	Chondrichthyes (Knorpelfische)	Insecta (Insekten)
Order	Lamniformes (Makrelenhaiartige)	Lepidoptera (Schmetterlinge)
Family	Alopiidae	Geometridae
Genus	Alopias	Cabera
Species	Alopias pelagicus	Cabera exanthemata

Evolutionary Relationship

Bigeye thresher and Braunstirn-Weißspanner share a common ancestor at the Kingdom level: Animalia. (Tier)

Conservation Status

Bigeye thresher

EN — Endangered

Braunstirn-Weißspanner

LC — Least Concern

Physical Characteristics

Attribute	Bigeye thresher	Braunstirn-Weißspanner
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bigeye thresher

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

Distributed across Colombia and Taiwan. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Braunstirn-Weißspanner

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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

Bigeye thresher

The Bigeye thresher (Alopias pelagicus) is a species in the genus Alopias. It is currently classified as Endangered on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

Braunstirn-Weißspanner

<em>Cabera exanthemata</em>, commonly known as the common wave, is a moth in the family Geometridae, distributed across much of Europe, with confirmed records from Belgium, Canada, Denmark, Norway, and Sweden. It is classified as Least Concern by the IUCN, indicating a stable population with no major threats currently identified. The species is associated with deciduous woodland habitats, particularly areas with abundant birch, alder, and willow trees, which serve as larval host plants. Adults are pale whitish-gray with a series of fine, wavy darker cross-lines on the wings — a pattern typical of many geometrid moths that provides camouflage against lichen-covered tree bark. <em>Cabera exanthemata</em> typically produces two or three generations per year depending on latitude, with adults typically on the wing from May through August. Larvae feed on the foliage of various deciduous trees and overwinter as pupae in the soil or leaf litter. The species is primarily nocturnal as an adult, attracted to light sources during flight periods. Biological traits including average lifespan, wingspan dimensions, and mass remain poorly documented in standardized databases. Ecologically, the common wave contributes to forest food webs as both a herbivore during its larval stage and as a food resource for insectivorous birds and bats during its adult flight period throughout its temperate European and North American range.