New and little known Coleophora Hbner, 1822 species from Morocco. Part I. (Lepidoptera, Coleophoridae).

Altogether, 64 Coleophora (Lepidoptera: Coleophoridae) species from Morocco are reported, based on recent collecting expeditions. Twelve new species are described: C. retusa Tabell, sp.

A molecular-based identification resource for the arthropods of Finland.

To associate specimens identified by molecular characters to other biological knowledge, we need reference sequences annotated by Linnaean taxonomy. In this study, we (1) report the creation of a comprehensive reference library of DNA barcodes for the arthropods of an entire country (Finland), (2) publish this library, and (3) deliver a new identification tool for insects and spiders, as based on this resource. The reference library contains mtDNA COI barcodes for 11,275 (43%) of 26,437 arthropod species known from Finland, including 10,811 (45%) of 23,956 insect species.

Subspecies of Pleurota bicostella (Clerck, 1759) revisited and descriptions of nine new species in the P. bicostella species group (Lepidoptera: Gelechioidea: Oecophoridae: Pleurotinae).

The identities of five subspecies of Pleurota bicostella (Clerck, 1759) are studied, and each is raised from subspecies to species: P. andalusica Back, 1973, stat. nov.

Three morphologically and genetically confirmed new Pleurota species from Morocco (Lepidoptera: Gelechioidea: Oecophoridae: Pleurotinae).

Three new Pleurota species (Oecophoridae: Pleurotinae) from Morocco, which form a species complex, are described: P. variocolor Tabell, sp. nov.

Characterization of Pleurotinae, with review of Pleurota species close to P. aristella (Linnaeus) from Morocco (Lepidoptera: Gelechioidea: Oecophoridae).

Morphological traits characterizing and delimiting Pleurotinae (Oecophoridae) are provided and discussed. The evidence supports the validity of the subfamily as suggested by recent molecular studies. The Pleurota aristella (Linnaeus, 1767) species group is characterized, and six new species belonging to the group from Morocco are described: Pleurota tricolor Tabell, sp.

Descriptions of five morphologically and genetically confirmed new species of the Coleophora poecilella Walsingham, 1907 species group (Lepidoptera, Coleophoridae) from the Palearctic Region.

Five new Coleophora species belonging to the C. poecilella species group are described: C. mirleftensis Tabell, sp.

Coleophora sabina Baldizzone & Tabell, sp. nov. (Lepidoptera: Coleophoridae) from Central Italy.

Coleophora sabina sp. nov. is described from Italian mainland.

Wide-ranging barcoding aids discovery of one-third increase of species richness in presumably well-investigated moths.

Rapid development of broad regional and international DNA barcode libraries have brought new insights into the species diversity of many areas and groups. Many new species, even within well-investigated species groups, have been discovered based initially on differences in DNA barcodes. We barcoded 437 collection specimens belonging to 40 pre-identified Palearctic species of the Elachista bifasciella group of moths (Lepidoptera, Elachistidae).