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In March 2019, several swellings caused by mistletoe (Viscum album L.) were collected in the south of the Province of Luxembourg to demonstrate a possible presence of Synanthedon loranthi (Králícek, 1966). Some galls were collected both on apple (Malus domestica (Suckow) Borkh.) and hawthorn (Crataegus monogyna Jacq.). As a coincidental find, a caterpillar of Celypha woodiana (Barrett, 1882) (Tortricidae) was also found. This species has not been observed in Belgium for many decades and the correct identification of the only previous find is doubtful. Moreover, the specimen in question can no longer be traced, making the bred moth from the Luxembourg province the first verifiable observation from Belgium. The biology of the species is discussed here as well as its currently known distribution in Europe. Another Tortricidae, Archips podana (Scopoli, 1763), was also found on mistletoe; this species is also discussed as well as a parasitic wasp that parasitises the caterpillar. [ABSTRACT FROM AUTHOR]

The still widely used mercury vapour bulbs have the annoying disadvantage that they can only function in combination with a ballast (choke). Due to induction, this causes a loss of power because voltage and current no longer flow in phase. As a result, the lamp consumes more power and, when using a generator, the number of lamps that can be connected is limited. However, adding a capacitor can compensate for this. This article provides some theoretical background but also discusses the practical implementation of such a capacitor. [ABSTRACT FROM AUTHOR]

On the basis of the material collected and the observations made in the summer of 2003 in Turkey -mainly in eastern Anatolia- and some samples in the collection of Atatürk University, Entomology Museum, Erzurum, Turkey (EMET), an overview is given of the observed clearwing moths (Sesiidae) in Turkey from faunistic, distributional, and agro-economical points of view. Thirty-six species and subspecies in 11 genera have been recorded, of which Sesia pimplaeformis Oberthtür, Paranthrene diaphana Dalla Torre & Strand, Synanthedon andrenaeformis tenuicingulata Špatenka and Pyropteron cirgisa (Bartel, 1912) are classified as endangered species and should be added to the red list. Bembecia syzcjovi kappadocica Špatenka, Dipchasphecia sertavula Bartsch & Špatenka, D. kopicaGorbunov & Špatenka, and Chamaesphecia ruficoronataKallies, Petersen & Riefenstahl are endemic to Turkey. The species having an agro-economical importance as a pest in cultivated plants and as biocontrol agents on weeds are also indicated. [ABSTRACT FROM AUTHOR]