Benthic-invertebrates
Guides
Bryophaenocladius
Bryophaenocladius is a genus of non-biting midges in the family Chironomidae, subfamily Orthocladiinae. The genus was established by Thienemann in 1934 and includes species distributed across Europe and Asia. Species have been described from Norway, Denmark, Sweden, India, and China. Recent taxonomic work has emended generic diagnoses based on newly discovered morphological characters in multiple life stages.
Heptagenia
flatheaded mayflies
Heptagenia is a genus of flatheaded mayflies in the family Heptageniidae, containing at least 20 described species. Nymphs are primarily benthic inhabitants of lotic systems, where they construct burrows in sandy or gravelly substrates and employ filter-feeding mechanisms. Adults are distinguished from the related genus Raptoheptagenia by the absence of anastomosed crossveins in the stigmatic area of the forewing and by having foretarsi shorter than the tibiae. The genus has been documented across North America, Europe, and Asia, including the Western Himalaya.
Protanypus
Protanypus is a genus of non-biting midges in the subfamily Diamesinae of the family Chironomidae. The genus comprises approximately 10 described species distributed across Europe, North America, and Asia. Species within this genus are found in aquatic environments, with larvae inhabiting freshwater habitats. The genus was established by Kieffer in 1906.