DNA Barcode of symbiotic chironomids: Findings in the genus Symbiocladius (Diptera: Chironomidae).

Chironomidae of symbiotic habits have been recorded in different parts of the world, among commensals and parasites. There are different genera reported at the moment, however questions such as the origin of commensal or parasitic life, which occurred first or what are their benefits remain debatable. In order to contribute with information to elucidate the above mentioned issues, the present study reports the finding of immature stages of Symbiocladius (Acletus) wygodzinskyi Roback, 1965 in the Churup stream located in the Andes Cordillera (Peru), living on nymphs of Leptophlebiidae (Ephemeroptera).

Who is Andesiops peruvianus (Ulmer, 1920) (Ephemeroptera: Baetidae)? New insight from the type basin using morphological and molecular analyses.

Andesiops peruvianus (Ulmer, 1920) is a small minnow mayfly with a distribution throughout the Andes Mountains, mainly in lotic environments. In recent years, the taxonomic status of the species has been shifting, even finding out molecular and morphological evidence to consider it as a cryptic species. In this work, we collected seven specimens of A.

First records of marine microturbellarians (Platyhelminthes: Rhabdocoela, Fecampiida and Prolecithophora) from Peru, with the description of a new species.

The marine microturbellarian diversity is scarcely known from the Pacific coastline of South America. The coastal margin of Peru is highly influenced by cold-water currents (Humboldt Current System). These cold-water currents play important roles in shaping the marine species diversity in this area.