01738nas a2200145 4500008004100000022001400041245008400055210006900139260000800208300001200216490000700228520127500235100002101510856006101531 2021 eng d a0065-171000aKey and atlas to the genus Trichocera Meigen in Europe (Diptera, Trichoceridae)0 aKey and atlas to the genus Trichocera Meigen in Europe Diptera T cmay a1–1570 v643 a

The key presents all 59 species of the genus Trichocera MEIGEN which occur in Europe. Four subgenera are represented: Trichocera MEIGEN 1803 (five species), Metatrichocera DAHL 1967 (seven species), Saltrichocera KRZEMIÑSKA 2002 (35 species), and Staryia KRZEMIÑSKA & GORZKA 2016 (13 species). The type material of two species, one from North America and one from Asia, are described ( Trichocera columbiana ALEXANDER, 1927 and T . arctica LUNDSTRÖM, 1915), whose identities cause some problems and whose presence in the northern regions of Europe is possible. Two new species are described, Trichocera (Saltrichocera) longa , n. sp., and T . (Staryia) oulankae , n. sp. Trichocera versicolor is resurrected from synonymy; T. limpidipennis is synonymized with T . regelationis . There are separate keys to males and females; species are illustrated with camera pictures of diagnostic features: genitalia, antennae, and male tarsal claws, and additionally, wings and thoraces when only one sex is known, to enable further search. The state of knowledge of the genus in Europe and in the world is discussed.

1 aKrzemińska, Ewa uhttps://www.ingentaconnect.com/content/10.3409/azc.64.0101567nas a2200193 4500008004100000022001400041245008700055210006900142300000800211490000700219520090900226653001601135653002301151653001601174653001201190653002401202100002101226856012601247 2020 eng d a0065-171000aTwo species with ventral receptacles in Trichocera Meigen (Diptera: Trichoceridae)0 aTwo species with ventral receptacles in Trichocera Meigen Dipter a1-70 v633 a

The ventral receptacle is a kind of a sperm storage shaped as an elongated pouch and positioned at the ventral side of female genitalia. It is a novelty and an alternative system to the spermathecae present in a vast majority of Diptera, and insects in general. Among the Diptera the ventral receptacle is present in the families of Brachycera Acalyptrata; the subgenus Trichocera (Staryia) is the only taxon among the entire Diptera Nematocera known to date in which the ventral receptacle was found. The subgenus comprises 13 species known from northern and central Europe. In this paper two new species of Staryia are described, one from Switzerland, and the other from Scandinavia. Additionally, a revised description of a female of T. (Metatrichocera) gigantea DAHL, 1967, is provided, based on specimens from the far eastern locality in Siberia.

10anew species10aseminal receptacle10aspermatheca10aStaryia10aTrichocera gigantea1 aKrzemińska, Ewa uhttps://dipteratyoryhma.myspecies.info/fi/content/two-species-ventral-receptacles-trichocera-meigen-diptera-trichoceridae02087nas a2200205 4500008004100000022001300041245015300054210006900207300001100276490000800287520129700295653003001592653001601622653001701638653002301655653001701678100002101695700001901716856014601735 2016 eng d a0044523100aVentral receptacle in the genus Trichocera: A case of parallel evolution between remote lineages of the Diptera (Diptera: Nematocera: Trichoceridae)0 aVentral receptacle in the genus Trichocera A case of parallel ev a6–150 v2633 a

The paper deals with female reproductory system in the Diptera and describes the first case of the ventral receptacle among the Nematocera in the family Trichoceridae. The receptacle is a sperm storage organ alternative to the spermathecae, and was till now described in Brachycera: Schizophora. Herewith, the receptacle appears in a small group of species which present the different stages of evolution from the spermathecae to the receptacle within the genus Trichocera Meigen. The group was formerly known as a rectistylus group of species; herein it is raised to the subgenus level. Three new species are described.The ventral receptacle is a unique character within the genus and the family, whose all species have spermathecae and a similar morphology of the female inner and outer genitalia. Other accompanying modified structures in females of the new subgenus include strongly reduced genital plate and genital fork, and changed shape of the genital segment. Two species show possible evolutionary transition states from the plesiomorphic state of three spermathecae to a new sperm storage system: one new species has both the spermathecae and the receptacle, whereas another, Trichocera polanensis Starý, has three poorly sclerotized spermathecae.

10aFemale reproductive tract10anew species10aNew subgenus10aseminal receptacle10aSpermathecae1 aKrzemińska, Ewa1 aGorzka, Damian uhttps://dipteratyoryhma.myspecies.info/fi/content/ventral-receptacle-genus-trichocera-case-parallel-evolution-between-remote-lineages-diptera00941nas a2200169 4500008004100000245012600041210006900167300001100236490000700247520033900254653001600593653002300609653001600632100002100648700001900669856008300688 2014 eng d00aSubgenus Trichocera (Saltrichocera) in Scandinavia: a new species and first records from Finland (Diptera, Trichoceridae)0 aSubgenus Trichocera Saltrichocera in Scandinavia a new species a a1–100 v573 a

From localities in Sweden in Finland in the vicinity of Polar Circle 14 species of the subgenus Trichocera (Saltrichocera) are recorded; all new to Finland, and 5- to Sweden. A new species related to T. (S.) antennata, T. (S.) montium and T. (S.) thaleri is described from Finland. A female of T. (S.) michali is illustrated.

10anew species10apolar distribution10aScandinavia1 aKrzemińska, Ewa1 aGorzka, Damian uhttp://www.ingentaconnect.com/content/isez/azc/2014/00000057/F0020001/art00001