Contribution to the mayfly, aquatic beetle, aquatic and semiaquatic bug and caddisfly fauna of watercourses in the Bihari-plain, E Hungary (Ephemeroptera larvae; Coleoptera: Hydradephaga, Hydrophiloidea; Heteroptera: Nepomorpha, Gerromorpha; Trichoptera larvae)

Collecting data of 113 species of aquatic macroinvertebrates (Ephemeroptera: 6, Coleoptera: 75, Heteroptera: 20 and Trichoptera: 12) are given from 8 localities in Bihari plain, E Hungary

Contribution to the mayfly, aquatic and semiaquatic bug, aquatic beetle, caddisfly and chironomid fauna of the River Tisza and its main inflows (Ephemeroptera, Heteroptera: Nepomorpha and Gerromorpha, Coleoptera: Hydradephaga and Hydrophiloidea, Trichoptera, Diptera: Chironomidae)

Localities and collecting data of 25 mayfly, 20 aquatic and semiaquatic bug, 49 aquatic beetle, 15 caddisfly and 55 chironomid taxa are given from 26 collecting sites of the River Tisza and its main inflows. The Helophorus arvernicus Mulsant, 1846 (Coleoptera: Helophoridae) is new to the Hungarian fauna

Data to the Ephemeroptera, Odonata and Trichoptera fauna of the Kőszeg Mountains

We present occurrence records of 15 Ephemeroptera, 6 Odonata and 20 Trichoptera species from streams of the Kõszeg Mountains. The most significant species among several rare and endangered ones are Baetis melanonyx, B. niger, Ephemerella mucronata, Cordulegaster bidentatus, C. heros, Rhyacophila hirticornis and Potamophylax cingulatus

Records of caddisfly larvae (Trichoptera) from the Kerca stream

A three years long quantitative macrozoobenthos survey was carried out on the section of the Kerca stream near Kercaszomor. Between 2008 and 2010 altogether 29 caddisfly (Trichoptera) species were collected from 4 sites on the Kerca stream. Among the identified species, larvae of rare caddisflies were detected such as Polycentropus irroratus, Adicella reducta, Leptocerus interruptus, and Oecetis testacea

Re-appearance of Palingenia longicauda (Olivier, 1791) (Ephemeroptera, Palingeniidae) on the Hungarian Danube section – range recovery of the species at the Rába-district

Swarming long-tailed mayflies (Palingenia longicauda) were observed above the former rehabilitated Gönyû-sidearm of the river Danube on the 12–13th of June 2015, which was the first observation of the species at the Hungarian Danube section, since its disappearance. Both subimago molts of the males, and females doing their compensation flight were observed, thus development of the long-tail mayflies seems to be locally certain. Description of the swarming and summarized evaluation of the conservationtrends of the long-tailed mayfly at the Rába-district are added below