Additions to the Estonian fauna of mycophagous Cecidomyiidae (Diptera), with a description of Unicornella estonensis gen. et sp. nov.

Mycophagous gall midges from two Malaise trapping campaigns in Estonia were subjected to a morpho-taxonomic study, with the aim of identifying previously unrecorded species. Fifty-four species are shown for the first time to occur in Estonia, specifically 1 Lestremiinae, 21 Micromyinae, 5 Winnertziinae, and 27 Porricondylinae. This raises the number of mycophagous cecidomyiids known from Estonia to 152, which is about one fourth of the total estimated for the national fauna.

Hidden in Plain Sight: Comprehensive Molecular Phylogeny of Keroplatidae and Lygistorrhinidae (Diptera) Reveals Parallel Evolution and Leads to a Revised Family Classification.

We provide the first molecular phylogeny of Keroplatidae and Lygistorrhinidae, families of fungus gnats (Diptera: Bibionomorpha: Sciaroidea). Phylogenies reconstructed by Maximum Likelihood and Bayesian methods, based on four nuclear and four mitochondrial gene markers (5106 base pairs) sequenced for 75 genera and 105 species, show Keroplatidae as monophyletic only with the family Lygistorrhinidae included, herewith treated as the subfamily Lygistorrhininae stat. nov.