Dilian Georgiev

This study presents the first data on the barkfly fauna (Insecta: Psocodea) of the Sveti Iliyski Heights, an isolated lowland hilly chain in South-East Bulgaria (Upper Thracian Lowland). A total of 14 species belonging to eight families (Trogiidae, Liposcelididae, Caeciliusidae, Stenopsocidae, Lachesillidae, Ectopsocidae, Elipsocidae, and Mesopsocidae) were recorded based on material collected irregularly between 2017 and 2024. Most species were found in reforested stands of Pinus nigra and surrounding broadleaved vegetation, predominantly inhabiting dry foliage, live and dead branches, tree bark, and leaf litter.

In this study, we contribute to the knowledge of the psocid fauna of Vietnam by reporting four species for the first time for the territory of the country: Amphipsocus unitoides New et Thornton, 1976, Isophanes capeneri Smithers, 1956, Peripsocus medimacularis Li, 1995, and Sigmatoneura kolbei (Enderlein, 1906). Additionally, we provide four new distribution localities for Caecilius fuscopterus (Latreille, 1799), a species first recorded in Vietnam as a smaller variety by Enderlein (1903). All specimens were collected from various habitats in northern Vietnam during October 2025.

Barkflies were collected between 27.02.2026 and 05.03.2026 in various habitats of coastal Tanzania. A total of 17 species were identified from which 14 are new records for Tanzania, some of them new to East Africa or the entire African continent.

We report 20 species of Psocodea collected in Guadeloupe (Lesser Antilles) during August 2025. Ten are new to the department, and for the Lesser Antilles as a whole. Several species previously known from Guadeloupe are here confirmed with precise localities and GPS coordinates. Five species are recorded for the first time from Grande-Terre Island and four from Basse-Terre Island. With these additions, the checklist of Psocodea from Guadeloupe now comprises 29 species, significantly expanding current knowledge of the Caribbean fauna of this insect order.

This study presents the first records of four Psocodea species from the Island of La Desirade, Guadeloupe. Barkflies were collected during a one-day survey on August 20, 2025, from three distinct localities. The recorded species are: Liposcelis bostrychophila Badonnel, 1931, Ectopsocus maindroni Badonnel, 1935, Ectopsocus thibaudi Badonnel, 1979, and an unidentified species from the genus Archipsocus Hagen. Liposcelis bostrychophila is a new record for the entire Antilles, while the species from the genus Archipsocus is a new record for Guadeloupe.

This study presents preliminary data on the diet composition of reintroduced Lesser Kestrels (Falco naumanni) in two restored colonies in Bulgaria—near Stara Zagora and in the Sakar Mountains at Levka village—based on pellet analysis. A total of 103 and 48 identifiable prey items (occurrences in the pellets) were recovered from the respective sites. Insects (particularly Coleoptera) dominated the diet at both colonies, but some differences were observed in the occurrence of vertebrate prey. Birds (Aves) were the second most common category in Stara Zagora, while small mammals (Mammalia) were more prevalent in Sakar. Annelids were detected only in Stara Zagora, and millipedes (Diplopoda) only in Sakar. Synthetic materials were found in pellets from Stara Zagora, suggesting plastic ingestion. Levins’ index indicated similar niche breadths (1.915 vs. 2.008), and Pianka’s index showed a high dietary overlap (0.981), pointing to broadly similar trophic preferences despite local prey availability.

This paper reports six psocid species as new records to French Guiana: Echmepteryx madagascariensis (Kolbe, 1885), Lepidopsocus marmoratus (Banks, 1931), Liposcelis bostrychophila Badonnel, 1931, Peritroctes trifasciatus Badonnel, 1981, Mesepipsocus brasilianus (New, 1972), Archipsocus cf. minutillus New, 1973. Two of them are also newly recorded for South America. A current checklist of psocid species in the department is provided, including the authors and localities where the species have been reported.

This study presents an updated overview of the Psocodea (Insecta) fauna of the Upper Thracian Lowland in Southern Bulgaria, based on both published records and new field collections from 2017 to 2025. A total of 26 species were documented, 18 of which are new for the region. Specimens were collected from a variety of natural and human-modified habitats, including riparian forests, mixed deciduous woodlands, conifer plantations, and urban environments.

In this study, the psocids (Psocodea: 'Psocoptera') from caves and other ecosystems in Northeastern Iran were investigated during the years 2022 and 2024. Among them, Psyllipsocus ramburii Selys-Longchamps, 1872, and Lepinotus inquilinus Heyden, 1850, are new to the Iranian fauna. Additionally, all species identified in this study are newly recorded ...

This study describes a new species, Nanopsocus ajabu n. sp., discovered on Unguja Island, Zanzibar. The species exhibits unique morphological characteristics and complex colour patterns. Material was collected and examined following standard protocols, with specimen deposited at the National Museum of Natural History, Sofia, Bulgaria. An identification key for all known Nanopsocus species is provided.