Metallic Tiger Beetles
Tetracha
Classification
- Phylum: Arthropoda
- Subphylum: Hexapoda
- Class: Insecta
- Order: Coleoptera
- Suborder: Adephaga
- Family: Carabidae
- Subfamily: Cicindelinae
- Tribe: Megacephalini
- Genus: Tetracha
Pronunciation
How to pronounce Tetracha: /tɛˈtra.kə/
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Images
Summary
Tetracha is a genus of metallic tiger beetles known for their large size and oily-green coloration. They are primarily nocturnal, with several species found in North America, particularly Tetracha virginica and Tetracha carolina. The larvae can be identified by specific features, although field marks may be challenging to observe due to dirt accumulation.
Physical Characteristics
Large, nocturnal beetles with overall oily-green coloration; Tetracha virginica has entirely green elytra, lacking apical tan marks.
Identification Tips
Tetracha virginica can be recognized by its entirely green elytra, while Tetracha carolina is widespread and shares similarities with other species but has distinctive markings.
Habitat
Nocturnal/crepuscular habitats; often found in areas where they can come to lights.
Distribution
Found in regions from the southern United States to Argentina.
Diet
Carnivorous, feeding on other insects as adults.
Life Cycle
Larvae of Tetracha are distinctive; have specific technical characters for identification.
Ecosystem Role
As predators, they help control insect populations in their habitats.
Evolution
The name 'Tetracha' originates from Greek, meaning 'in four parts', referencing the four apical teeth of the mandibles.
Misconceptions
Some may confuse Tetracha species due to their similar appearance and nocturnal habits.
Tags
- beetles
- Tetracha
- metallic tiger beetles
- insects
- Coleoptera