The Collapsible Light Trap: a portable Pennsylvania Light Trap for collecting aquatic insects.

A Collapsible Light Trap (CLT) for collecting insects, particularly aquatic insects, is described here. CLT is a modified Pennsylvania Light Trap with the advantage of being collapsible and lightweight to be carried in a small backpack and very easy to set up in the field. CLT is equipped with LED light strip wrapped around a PVC tube and can be connected to a regular 12 V / 7 Ah battery, running for more than 48 uninterrupted hours. Complete CLT weighs 0.8-1.0 kg, depending on the metal used, and the battery weighs around 2 kg, being easily transportable to more remote collecting areas. Over the years, CLTs have been used for collecting and describing the diversity of aquatic insects from Brazil, particularly caddisflies. Depending on the locality, only one trap for one night can collect over a thousand insect specimens and more than 200 individuals of caddisflies.

Two new species and new records of Notomicrus Sharp, 1882 (Coleoptera: Noteridae) from Brazil.

Two new species of Notomicrus Sharp, 1882 from Brazil are described and illustrated: N. meizon sp. nov. from the state of Amazonas and N. teramnus sp. nov. from the state of Minas Gerais. The new species can be distinguished from all other members of Notomicrus mainly by their aedeagal features, especially for N. teramnus sp. nov., with a unique aedeagal structure. In addition, new records from Brazil are provided for N. brevicornis Sharp, 1882 (states of Amazonas and Pará), N. gracilipes Sharp, 1882 (Amazonas and Rio de Janeiro), N. malkini Young, 1978 (Amazonas, Pará and Rio de Janeiro), and N. traili Sharp, 1882 (Amazonas, Goiás and Paraná).

On Hydrocanthus Say, 1823 (Coleoptera: Noteridae): description of a new species, two new synonyms and a key to Brazilian species.

A new species of Hydrocanthus Say, 1823 is described and illustrated, H. zimmermanni sp. nov. from Peru. A distinct pattern of prosternum and prosternal process setation and aedeagal features differentiate the new species from all other members of Hydrocanthus. Two new synonyms are established: H. rubiginosus Guignot, 1942 as junior synonym of H. debilis Sharp, 1882 (syn. nov.) and H. paludimonstrus Miller, 2001 as junior synonym of H. paraguayensis Zimmermann, 1928 (syn. nov.). In addition, a key to Brazilian species of Hydrocanthus is provided.