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.

Taxonomic diversity of Ochrotrichiinae (Trichoptera: Hydroptilidae) from Peru with the description of ten new species, a new distributional record, and an updated checklist.

We describe here ten new species of Ochrotrichiinae from southern Peru in genera Metrichia (7 new species), Ochrotrichia (1 new species), and Rhyacopsyche (2 new species). In addition to describing and illustrating male genitalia of the new species, we also highlight diagnostic features from antennae, head setal warts, and wing venation. These structures have received little attention in taxonomic studies of Hydroptilidae, and we think they may be useful in future morphological studies involving the family. We also record O. puyana for the first time from Peru, which was previously known only from Ecuador. Comments on the distribution of the Peruvian Ochrotrichiinae are also provided, along with a distributional map and an updated checklist of the species recorded in the country. This work revealed a total of 56 species of Ochrotrichiinae from Peru.

New long-horned caddisfly genus and species of Leptoceridae (Insecta: Trichoptera) from Brazil.

Ibyacerina caparao new genus, new species (Trichoptera: Leptoceridae) is described and illustrated from specimens collected at Serra do Capara, Minas Gerais, Brazil. The monotypic genus is characterized by tibial spur formula 0,2,2; preanal appendages originating from a single base with a median process; tergum X broad, heavily sclerotized, saddle-like, wider at apex, and upturned, bearing small stout setae; inferior appendages each 3-branched, setose; and phallic apparatus tubular, curved slightly ventrad, with pair of lateral processes. Phylogenetic Bayesian and maximum likelihood analyses based on concatenated cytochrome oxidase I (COI) and carbamoyl-phosphate synthetase (CAD) partial sequences (1,504 bp) including representatives of 38 leptocerid genera positioned Ibyacerina gen. nov. with good support within Leptocerinae. However, due to low branch support of most relationships among genera within the clade of Leptocerinae, except Mystacidini, Setodini, and Leptocerini, its close affinities and tribal placement are still unknown.

Leptoceroidea (Insecta: Trichoptera: Integripalpia) from Serra do Caparaó, Southeast Brazil, including a new species of Atanatolica Mosely (Leptoceridae).

Serra do Caparaó is an impressive mountain range between the states of Minas Gerais and Espírito Santo, Southeast Brazil, inserted within the Atlantic Forest biome, and has a mosaic vegetation composed mainly by Dense Ombrophilous Forest and rupicolous vegetation of high-altitude grasslands. This study contributes to increasing the knowledge on the Leptoceroidea fauna of the Serra do Caparaó. Herein, we describe and illustrate a new species of Leptoceridae, Atanatolica bandeira sp. nov. and provide additional data on the richness and distribution of Leptoceroidea from Parque Nacional do Caparaó and surrounding areas. The distribution of some species is expanded. Fourteen and four species are recorded for the first time from Espírito Santo and Minas Gerais states, respectively.

The immature stages of Phylloicus obliquus Navás, 1931 (Insecta: Trichoptera: Calamoceratidae).

Larva and pupa of Phylloicus obliquus Navás are associated, described, illustrated and compared with other Neotropical species of the same genus. The P. obliquus larva differs from the others due to the pattern of distribution of muscle scars on the head, mandibles with two teeth, and a dense row of long yellow setae on the inner margin. The pupa differs from other Phylloicus pupae by the sequence and shape of tergal abdominal hook plates. The case of P. obliquus larvae is composed of rectangular fragments of vegetal material with uniform shape and always arranged in overlapping layers. Larvae were found in a small second order Atlantic Forest stream.

New species of Helicopsyche von Siebold 1856 (Trichoptera: Helicopsychidae) from Brazil, including the redescription of Helicopsyche (Feropsyche) planorboides Machado 1957.

Helicopsyche has about 270 extant species widely distributed, with highest species diversity in tropical and subtropical areas. Currently, the genus is divided into six subgenera, with only two of them occurring in the Neotropical region. In Brazil, 28 species of Helicopsyche have been recorded, being nine in Cochliopsyche and 19 in Feropsyche. In this paper, we describe, diagnose and illustrate six new species of Helicopsyche subgenus Feropsyche from Rio de Janeiro state, Brazil: Helicopsyche bendego sp. nov., H. daome sp. nov., H. dinoprata sp. nov., H. luziae sp. nov., H. petri sp. nov., and H. shaamunensu sp. nov. Furthermore, H. (F.) planorboides is redescribed based on the holotype and additional specimens; the type series of this species is now deposited in the collection of the Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro. Finally, Helicopsyche (F.) catoles, H. (F.) guara and H. (F.) planorboides are reported for the first time from Rio de Janeiro state, Brazil, the last one also listed for Espírito Santo state, Brazil.

A new species of Smicridea McLachlan 1871 (Trichoptera: Hydropsychidae) from the Caatinga biome and new distributional records from Brazil.

A new species of Smicridea (Smicridea) McLachlan 1871 is described and illustrated based on specimens collected from the Caatinga biome, in Sete Cidades National Park, Piauí state, and Ubajara National Park, Ceará state, northeastern Brazil. Based on phallus morphology, Smicridea (Smicridea) caatinga sp. nov. belongs to the S. nigripennis Group and can be distinguished from other species in this group due to the phallus having two ventral sclerotized projections and, when expanded, two dorsal membranous lobes and one ventrolateral membranous lobe with two spines on the apex. New distributional records of Smicridea species are provided for different Brazilian states: S. (S.) aequalis Banks 1920 for Ceará and Piauí, S. (Rhyacophylax) coronata Flint 1980 for Rio Grande do Sul and Piauí; S. (R.) jundiai Almeida Flint 2002 for Mato Grosso; S. (R.) marlieri Flint 1978 for Roraima; S. (R.) palmar Sganga 2005 for Goiás; S. (S.) paranensis Flint 1983 for Ceará and Piauí; and S. (R.) spinulosa Flint 1972 for Rio Grande do Sul. Furthermore, S. (S.) erecta Flint 1974b is recorded for the first time for Brazil, in Amazonas state. [Zoobank: urn:lsid:zoobank.org:act:3C2892F9-D430-492B-98DA-A48569253A63].

New species and new geographical record of Ochrotrichia Mosely 1934 Trichoptera: Hydroptilidae) from Rio de Janeiro state, Brazil.

Ochrotrichia, with about 160 extant species in the New World, is the most diverse genus assigned to the Ochrotrichiinae. Despite its diversity, only eight species were previously recorded from Brazil, only one from Rio de Janeiro state. In this paper, we describe three new species from Parque Nacional da Tijuca, an Atlantic Forest area at Rio de Janeiro. Ochrotrichia nematomorpha sp. nov. is placed within the O. xena Group, having a plate-like tergum X, with an unusual phallus which is slender and pointed apically. Ochrotrichia sagitta sp. nov. and O. taunay sp. nov. belong to the O. aldama Group, each having a divided tergum X, but being distinguished from the others in this group by the arrowhead-like apex of left lateral process of tergum X (O. sagitta) and the presence of two dorsal spine-like projections on tergum X (O. taunay). Furthermore, O. caatinga Souza, Santos Takiya, 2014 is reported for the first time from Rio de Janeiro state.

Phylloicus mirabilis (Trichoptera: Calamoceratidae), a new species from Rio de Janeiro state, southeastern Brazil.

Phylloicus Müller 1880 is an endemic Neotropical genus of Calamoceratidae characterized by adults that have diurnal to crepuscular habits. Currently, the genus contains 57 species, with 23 of these species recorded from Brazil. Herein, a new species of Phylloicus is described and illustrated based on specimens collected in Malaise traps from Southeast Region, Brazil. The new species can be characterized by the unusual lateral membranous lobes of abdominal segments IV-VII, metathoracic tibiae with brushes of setae and distal emargination, and the wide and long coremata on abdominal pleura VII. Otherwise, the genital structure is similar to that of Phylloicus monneorum Dumas Nessimian 2010, being distinguished by the subtrapezoidal tergum X, the globose harpago of the inferior appendages, and the moustache-shaped phallotremal sclerite.

The immature stages of Smicridea (Rhyacophylax) gladiator Flint 1978 (Trichoptera: Hydropsychidae), with notes on distribution and bionomics.

Immature stages of many Brazilian Smicridea species remains unknown, and efforts to describe all life stages are required. In this paper, the larva and pupa of Smicridea (Rhyacophylax) gladiator Flint 1978, associated with adults through the metamorphotype method, are described and illustrated. In addition, the known distribution of this species is extended in the Brazilian Amazon Basin with new records from Amazonas state and the first record in Pará state. Information about its bionomics is also provided.

Two new species of Austrotinodes Schmid (Insecta, Trichoptera, Ecnomidae) from southeastern Brazil.

The genus Austrotinodes Schmid, with 55 species described from the New World and Australia, is the second largest genus of the family Ecnomidae. Herein, we describe and figure two new species of Austrotinodes from Parque Nacional da Tijuca, Rio de Janeiro state, southeastern Brazil: A. carioca sp. nov. and A. quintarellii sp. nov.

Three new species and a new record of Smicridea McLachlan 1871 (Trichoptera: Hydropsychidae) from Minas Gerais state, Brazil.

Three new species of Smicridea McLachlan 1871 are described and illustrated based on specimens collected in Parque Nacional da Serra da Canastra and its surrounding area, Minas Gerais state, southeastern Brazil. Smicridea (Rhyacophylax) necator sp. nov. possibly belongs to the S. (R.) dispar Group, but its placement in this group is weakly supported; S. (Smicridea) franciscana sp. nov. belongs to the S. (S.) nigripennis Group based on morphology of the phallus; S. (S.) sepala sp. nov. is a member of the S. (S.) fasciatella Group, also based on the morphology of the phallus. A new record of S. (S.) sattleri Denning & Sykora 1968 is provided for Minas Gerais state, Brazil.

A new species of Polyplectropus Ulmer 1905 (Trichoptera: Polycentropodidae) from Minas Gerais State, southeastern Brazil.

The adult male of a new species of the genus Polyplectropus Ulmer 1905a is described and illustrated based on specimens collected in Parque Nacional da Serra da Canastra, southeastern Brazil. Polyplectropus canastra sp. nov. can be distinguished from other Polyplectropus species by the shape of sternum IX, by the thumb-like mesolateral process of each preanal appendage, by the rectangular ventral branch of each inferior appendage in ventral view, and by the curved claw-like spines of the endothecal membrane. Among all species in the P. annulicornis Group, P. canastra is the only one with a bifid dorsolateral process of each preanal appendage and bearing spinules on the distal half of the rod-like lateral branch.

Two new species of Ulmeritoides Traver (Ephemeroptera: Leptophlebiidae) from Southeastern Brazil.

Two new species of Ulmeritoides Traver, 1959 are described from Southeastern Brazil based on male and female imagos. Ulmeritoides angelus sp. nov. (Holotype male deposited in DZRJ: Minas Gerais State) differs from all other species of the genus by the following combination of characters: forewings hyaline, base dark brown and purplish; veins R1 light brown; dark brown spots on bullae of veins Sc and R2; apex of penis lobes somewhat rounded, each with one central spine. Ulmeritoides tamoio sp. nov. (Holotype male deposited in DZRJ: São Paulo State) differs from all other species of the genus by the following combination of characters: wings hyaline; veins C, Sc and R1 brownish; brownish spots on bullae of veins Sc and R2; apex of penis lobes straight, ending in rather acute apical and mesal projections. An updated key to the genera Ulmeritoides Traver, 1956 and Ulmeritus Traver, 1956 is also given.

Three new species of Macrelmis Motschulsky (Coleoptera: Elmidae: Elminae) from Southeastern Brazil with new definition of species groups to the genus.

Three new species of Macrelmis Motschulsky, 1859 are described and illustrated based on adult males from Rio de Janeiro, Minas Gerais and São Paulo states (southeastern Brazil). A new species groups definition is proposed for the genus, with a redefinition of the former six (aristeae sp. group, celsa sp. group, isus sp. group, granigera sp. group, milleri sp. group and striata sp. group) and designation of four new groups (alea new sp. group, amazonica new sp. group, grandis new sp. group and jureceki new sp. group). The male genitalia of M. clypeata is illustrated for the first time and distributional maps for all species of the genus are provided.

Description of two new species of Martarega White, 1879 (Heteroptera: Nepomorpha: Notonectidae), one based on the mixed type-series of M. oriximinaensis Barbosa, Ribeiro & Ferreira-Keppler, 2010.

Description of two new species of Martarega White, 1879 (Heteroptera: Nepomorpha: Notonectidae), one based on the mixed type-series of M. oriximinaensis Barbosa, Ribeiro & Ferreira-Keppler, 2010. Martarega currently includes 20 species restricted to the Americas. A mixed type-series of M. oriximinaensis from Brazil was detected, including males with an additional group of ensiform bristles on the fore trochanter and mesofemur conspicuously setose. These specimens were described as a new species, M. siolii Barbosa, Nessimian & Takiya, sp. nov., and a redescription of M. oriximinaensis is also given. A second new species from Colombia is described, M. guajira Barbosa, Nessimian & Takiya, sp. nov. This species is very similar to M. pacifica, except for having groups of ensiform setae on the fore- and mesotrochanter, and an additional opaque area on the hemelytra.

Two new species of Thraulodes Ulmer, 1920 (Ephemeroptera: Leptophlebiidae: Atalophlebiinae) from Southeast Brazil.

Two new species of Thraulodes Ulmer, 1920 are described from Rio de Janeiro and São Paulo, Southeastern Brazil, based on male and female imagos. Thraulodes luisae sp. nov. differs from all other species of the genus by the short and wide penes spines, turning up to apex; triangular shape of styliger plate with median projection abrupt and short with rounded apex; abdominal and legs color pattern; and presence of 2-3 weakly marked cross veins basal to bullae. Thraulodes pinga sp. nov. differs from all other species of the genus by the wide shape of styliger plate with median projection short with wide base and truncated apex; abdominal and legs color pattern; and presence of 1 weakly marked cross vein basal to bullae.