Abstract Detritivores are pivotal in forest streams as they process detritus and promote secondary production. Many studies have addressed the preference of freshwater detritivores towards materials differing quality. Nevertheless, few compare resource preferences laboratory with availability field. In present study, feeding two stream (the caddisfly Sericostoma pyrenaicum amphipod Echinogammar...

The relationship between the activity of moths, as indicated by pheromone traps, to solar and Earth magnetism was investigated in North Carolina, USA. Relationships were found but species differed their responses. These results are similar those light- trapping data on moth caddisfly Hungary Australia.

A new species of the caddisfly genus Synagapetus from central Spain is described and figured: Synagapetus vettonicus sp. n. Males of the new species are close to S. placidus and S. marlierorum, but the new species is well characterized by a combination of genitalic characteristics, especially those concerning the shape of the superior and inferior appendages. Additionally we provide a taxonomic...

This study explored the mechanisms by which crevices act as refugia for small algae during abrasive disturbances. Four substrates with different crevice features were subjected to three levels of abrasion in a stream-based experiment. Substrates were sand-grain caddisfly cases and three glass rod substrates that mimicked caddisfly cases in size and shape, as well as forming a gradient of larger...

Gene duplications within the conserved Hox cluster are rare in animal evolution, but in Lepidoptera an array of divergent Hox-related genes (Shx genes) has been reported between pb and zen. Here, we use genome sequencing of five lepidopteran species (Polygonia c-album, Pararge aegeria, Callimorpha dominula, Cameraria ohridella, Hepialus sylvina) plus a caddisfly outgroup (Glyphotaelius pellucid...

A description of the larva of Drusus plicatus Radovanović is given for the first time. The most important diagnostic characters enabling separation from larvae of the other Drusinae from the southeast Europe are listed. Molecular, ecological, and ethological features and distribution patterns of the species are given. Additionally, information on the sympatric caddisfly species of the three spr...

Cephalopsyche, a new genus of caddisfly (Trichoptera, Odontoceridae), is described from Vietnam. Two new species are placed in the genus: Cephalopsyche gorgonasp. n. and Cephalopsyche neboissisp. n. The adult male and female of each species exhibit distinct sexual dimorphism, especially in head morphology. In males, there are hinged, chamber-like structures on the vertex of the head, containing...

Benthic invertebrates and samples of blue duck faeces were collected in September 1988 from sites along Manganuiateao River, central North Island, and in November 1988 from seven rivers and streams on the East Cape. The occurrence of invertebrate taxa in the faeces varied within and between rivers, and within pairs of birds and family groups on the East Cape. In both regions, most blue duck had...