| Brachycercus | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Ephemeroptera |
| Family: | Caenidae |
| Genus: | Brachycercus Curtis, 1834 |
| External image | |
|---|---|
 Images at Flickr |
Brachycercus is a genus of small squaregilled mayflies in the family Caenidae, [1] [2] [3] [4] found especially in the Palaearctic and Nearctic realms.
The following are included in BioLib.cz: [5]
Mayflies are aquatic insects belonging to the order Ephemeroptera. This order is part of an ancient group of insects termed the Palaeoptera, which also contains dragonflies and damselflies. Over 3,000 species of mayfly are known worldwide, grouped into over 400 genera in 42 families.
Baetidae is a family of mayflies with about 1000 described species in 110 genera distributed worldwide. These are among the smallest of mayflies, adults rarely exceeding 10 mm in length excluding the two long slender tails and sometimes much smaller, and members of the family are often referred to as small mayflies or small minnow mayflies. Most species have long oval forewings with very few cross veins but the hindwings are usually very small or even absent. The males often have very large eyes, shaped like turrets above the head.
Caenidae, is a family of mayflies, sometimes called "small squaregill mayflies". Species are found throughout the world in lotic, depositional environments, and they are sprawlers. Caenids occur in quiet and even stagnant water and are often overlooked because they are so small. They like to live in silty bottoms, and their gills are specially adapted for such environments.
Caenis is a genus of mayflies. They are very small in size, sometimes with a body of only an 1/8 of an inch (3.2 mm).
Baetis is a genus of mayflies of the family Baetidae, known as the blue-winged olive to anglers. There are at least 150 described species in Baetis. They are distributed worldwide, with the most variety in North America and northern Europe.
Cloeon is a cosmopolitan genus of mayflies of the family Baetidae.
Ecdyonurus is a genus of mayflies of the family Heptageniidae.
Cinygmula is a genus of flatheaded mayflies in the family Heptageniidae. There are at least 30 described species in Cinygmula.
Stenacron is a genus of mayfly in the family Heptageniidae, with a distribution across eastern North America.
Acentrella is a genus of small minnow mayflies in the family Baetidae. Species of Acentrella are recorded from Europe, North America and Asia, with a few from Africa.
Cloeodes is a genus of mayflies in the family Baetidae.
Pseudocentroptiloides is a genus of Palaearctic and Oriental mayflies in the family Baetidae.
Habrophlebia is a genus of pronggilled mayflies in the family Leptophlebiidae. There are about nine described species in Habrophlebia.
Delphacinae is a subfamily of delphacid planthoppers in the family Delphacidae. There are at least 1,700 described species in Delphacinae.
Orthotylinae is a subfamily of plant bugs in the family Miridae. There are at least 650 described species and at least 70 genera in Orthotylinae. The Orthotylinae have traditionally been diagnosed by their possession of lamellate, apically divergent parempodia.
Ephemerella is a genus of spiny crawler mayflies in the family Ephemerellidae with a widespread distribution.
Campylomma is a genus of bugs in the family Miridae and tribe Nasocorini.
Podopinae, known as turtle bugs, are a subfamily of the insect family Pentatomidae. The type genus is Podops.
Brachycercus harrisella is a species of mayfly belonging to the family Caenidae.
Potamophylax is a genus of insects belonging to the family Limnephilidae. The species of this genus are found in Europe and Northern America.