Catalog of the Hydroptilidae (Insecta, Trichoptera).

The microcaddisfly (Trichoptera: Hydroptilidae) fauna is catalogued from a review of more than 1,300 literature citations through the end of 2020 to include 2,665 currently recognized, valid species in six subfamilies and 76 genera. Fourteen subspecies are included in the total as well as 23 fossil species and three fossil genera. The family Ptilocolepidae (Trichoptera), also covered in this catalogue, comprises 19 valid species in two genera; two subspecies and two fossil species are included in the total. The monotypic genus Eutonella, currently considered incertae sedis within Trichoptera, was formerly placed in Hydroptilidae and is also included in this catalogue. Genus-group and species-group synonyms are listed. Information on the type locality, type depository, sex of type, distribution by country, and other relevant taxonomic or biological information is included for each nominal species. Summary information on taxonomy, phylogeny, distribution, immature stages, and biology are provided for each subfamily, tribe, and genus where known. An index to all nominal taxa is provided to facilitate catalog use.

Calliphoridae (Diptera) on Decomposing Pig Carcasses and Human Cadavers in the Upper Midwest of North America.

The geographic ranges of forensically informative taxa on decomposing remains vary across regions. To determine which calliphorid flies would be expected to occur in Minnesota and the upper Midwest, individual freshly killed pig carcasses (Sus scrofa L.) were placed in the field in St. Paul, MN, at monthly intervals from May to October 2017 and May to September 2018. Aerial nets, forceps, and pitfall traps were used to collect and preserve associated adult and immature insects. Sixty-four forensically informative insect taxa were recorded, representing three insect orders and 14 families. Ten informative calliphorid species were recorded on carcasses, adding four new Minnesota records. Comparison of species lists from 26 human forensic cases indicated agreement between the two lists, except for Lucilia coeruleiviridis Macquart, Calliphora vomitoria (L.), and Cynomya cadaverina Robineau-Desvoidy, which occurred on pig carcasses but not human remains, and Calliphora livida Hall, which occurred on human remains, but not carcasses. The composite fauna list from cadavers agreed largely with the 2-yr list from pig carcasses.

The Trichoptera of Panama. XIX. Additions to and a review of the genus Leucotrichia (Trichoptera, Hydroptilidae) in Panama.

Prior to 2016, three species of caddisflies in the genus Leucotrichia (Trichoptera: Hydroptilidae) were known from Panama. Subsequently, one new species and four new country records were added to Panama's fauna. Herein, four new species are described (Leucotrichiacortadera sp. nov., L.holzenthali sp. nov., L.luma sp. nov., L.ruiteri sp. nov.) and two new country records added for Panama (L.botosaneanui Flint, 1996, L.hispida Thomson & Holzenthal, 2015). The resulting total of 14 species makes Panama the most species-rich country for this genus. Panama's species assemblage is most similar to Costa Rica and Mexico. However, the similarities among faunas in all these countries is very low (< 35%). Thus, more new country records are possible with additional collecting. Recent collections (2015-2021) of new caddisfly species and country records in this genus were effected primarily by use of Malaise traps. Our collections also evidenced multiple species from the same collecting site, with seven species each found in both lowland and mid-altitude sites. Investigation of the distribution of Leucotrichia species with altitude reveals a preference by several species for higher altitude locations. Additional Malaise trap collections over extended time periods are needed to verify the validity of all observations and preliminary conclusions made to date.

A preliminary molecular phylogeny of the family Hydroptilidae (Trichoptera): an exploration of combined targeted enrichment data and legacy sequence data.

Hydroptilidae is an extremely diverse family within Trichoptera, containing over 2,600 known species, that displays a wide array of ecological, morphological, and habitat diversity. However, exploration into the evolutionary history of microcaddisflies based on current phylogenetic methods is mostly lacking. The purpose of this study is to provide a proof-of-concept that the use of molecular data, particularly targeted enrichment data, and statistically supported methods of analysis can result in the construction of a stable phylogenetic framework for the microcaddisflies. Here, a preliminary exploration of the hydroptilid phylogeny is presented using a combination of targeted enrichment data for ca. 300 nuclear protein-coding genes and legacy (Sanger-based) sequence data for the mitochondrial COI gene and partial sequence from the 28S rRNA gene.

A revision of the Neotropical caddisfly genus Ascotrichia Flint, 1983 (Trichoptera, Hydroptilidae).

A revision of the microcaddisfly genus Ascotrichia (Trichoptera, Hydroptilidae) is provided, including a generic diagnosis, illustrations, and descriptions of males. This genus is endemic to the Neotropical region and has been recorded from countries in northern South America. Adults of the genus are notable within the family for the contrasting black and green hairs on the forewings. A total of six species are treated, three described as new: Ascotrichia adirecta sp. n. (Brazil), A. hystricosa sp. n. (Brazil), and A. simoma sp. n. (Brazil).

A revision of the Neotropical caddisfly genus Leucotrichia Mosely, 1934 (Hydroptilidae, Leucotrichiinae).

A revision of Leucotrichia (Trichoptera, Hydroptilidae) is provided, including a generic diagnosis, illustrations, a key, and descriptions of males. A total of 43 species are treated, 13 described as new: Leucotrichiaangelinae sp. n. (Venezuela), Leucotrichiadenticulata sp. n. (Mexico), Leucotrichiadianeae sp. n (Costa Rica), Leucotrichiafulminea sp. n. (Ecuador), Leucotrichiahispida sp. n. (Costa Rica), Leucotrichiakateae sp. n. (Venezuela), Leucotrichiapectinata sp. n. (Ecuador), Leucotrichiaprocera sp. n. (Brazil), Leucotrichiarepanda sp. n. (Venezuela), Leucotrichiarhomba sp. n. (Costa Rica), Leucotrichiariostoumae sp. n. (Ecuador), Leucotrichiasidneyi sp. n. (Venezuela), and Leucotrichiatapantia sp. n. (Costa Rica).

New species and records of Hydroptilidae (Trichoptera) from Venezuela.

Eight new species of Hydroptilidae (Trichoptera) from Venezuela are described: Acostatrichia digitatasp. n., Hydroptila cressaesp. n., Metrichia botrychionsp. n., Ochrotrichia spirasp. n., Oxyethira bettyaesp. n., Oxyethira quiramaesp. n., Oxyethira reduncasp. n., and Rhyacopsyche shortisp. n.New country records for Venezuela of 2 additional species, Neotrichia feolai Santos & Nessimian, 2009 and Oxyethira picita Harris & Davenport, 1999, are also provided. Illustrations of male genitalia are provided with each description.